java.lang.Object
- org.apache.hop.base.AbstractMeta
- - org.apache.hop.pipeline.PipelineMeta

All Implemented Interfaces:

Cloneable, Comparable<PipelineMeta>, Comparator<PipelineMeta>, IChanged, IHasFilename, IUndo, IAttributes, IEngineMeta, INamedParameterDefinitions, IXml, IResourceExport
```
public class PipelineMeta
extends AbstractMeta
implements IXml, Comparator<PipelineMeta>, Comparable<PipelineMeta>, Cloneable, IResourceExport, IHasFilename
```
This class defines information about a pipeline and offers methods to save and load it from XML as well as methods to alter a pipeline by adding/removing databases, transforms, hops, etc.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`PipelineMeta.PipelineType`	The PipelineType enum describes the various types of pipelines in terms of execution, including Normal, Serial Single-Threaded, and Single-Threaded.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`BORDER_INDENT`
`protected boolean`	`changedHops`
`protected boolean`	`changedTransforms`	Indicators for changes in transforms, databases, hops, and notes.
`static String[]`	`descTypeUndo`	A list of localized strings corresponding to string descriptions of the undo/redo actions.
`protected List<PipelineHopMeta>`	`hops`	The list of hops associated with the pipeline.
`protected PipelineMetaInfo`	`info`
`protected Map<String,Boolean>`	`loopCache`	The loop cache.
`static String`	`PIPELINE_EXTENSION`
`protected int`	`pipelineStatus`	The status of the pipeline.
`protected Result`	`previousResult`	The previous result.
`protected Map<String,List<TransformMeta>>`	`previousTransformCache`	The previous transform cache
`protected List<ITransformMetaChangeListener>`	`transformChangeListeners`	The list of TransformChangeListeners
`protected Map<String,IRowMeta>`	`transformFieldsCache`	The transforms fields cache.
`protected List<TransformMeta>`	`transforms`	The list of transforms associated with the pipeline.
`static String`	`XML_TAG`	A constant specifying the tag value for the XML node of the pipeline.
`protected static String`	`XML_TAG_INFO`	A constant specifying the tag value for the XML node of the pipeline information.
`static String`	`XML_TAG_NOTEPADS`	A constant specifying the tag value for the XML node of the notes.
`static String`	`XML_TAG_ORDER`	A constant specifying the tag value for the XML node of the order of transforms.
`static String`	`XML_TAG_PARAMETERS`	A constant specifying the tag value for the XML node of the pipeline parameters.
`static String`	`XML_TAG_TRANSFORM_ERROR_HANDLING`	A constant specifying the tag value for the XML node of the transforms' error-handling information.

Fields inherited from class org.apache.hop.base.AbstractMeta
attributesMap, changedFlag, changedNotes, contentChangedListeners, currentDirectoryChangedListeners, filename, filenameChangedListeners, maxUndo, metadataProvider, nameChangedListeners, namedParams, notes, runOptions, TYPE_UNDO_CHANGE, TYPE_UNDO_DELETE, TYPE_UNDO_NEW, TYPE_UNDO_POSITION, undo, undoPosition

Constructor Summary

Constructors
Constructor	Description
`PipelineMeta()`	Builds a new empty pipeline.
`PipelineMeta(InputStream xmlStream, IHopMetadataProvider metadataProvider, IVariables parentVariableSpace)`	Instantiates a new pipeline meta-data object.
`PipelineMeta(String fname, IHopMetadataProvider metadataProvider, IVariables parentVariableSpace)`	Parses a file containing the XML that describes the pipeline.
`PipelineMeta(Node pipelineNode, IHopMetadataProvider metadataProvider)`	Parse a file containing the XML that describes the pipeline.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addMissingPipeline(Missing pipeline)`
`void`	`addOrReplaceTransform(TransformMeta transformMeta)`	Add a new transform to the pipeline if that transform didn't exist yet.
`void`	`addPipelineHop(int p, PipelineHopMeta hi)`	Add a new hop to the pipeline on a certain location (i.e.
`void`	`addPipelineHop(PipelineHopMeta hi)`	Add a new hop to the pipeline.
`void`	`addTransform(int p, TransformMeta transformMeta)`	Add a new transform to the pipeline at the specified index.
`void`	`addTransform(TransformMeta transformMeta)`	Add a new transform to the pipeline.
`void`	`addTransformChangeListener(int p, ITransformMetaChangeListener list)`
`void`	`addTransformChangeListener(ITransformMetaChangeListener listener)`
`void`	`analyseImpact(IVariables variables, List<DatabaseImpact> impact, IProgressMonitor monitor)`	Determines the impact of the different transforms in a pipeline on databases, tables and field.
`void`	`cancelQueries()`	Cancels queries opened for checking & fieldprediction.
`void`	`checkRowMixingStatically(IVariables variables, TransformMeta transformMeta, IProgressMonitor monitor)`	Check a transform to see if there are no multiple transforms to read from.
`void`	`checkTransforms(List<ICheckResult> remarks, boolean onlySelected, IProgressMonitor monitor, IVariables variables, IHopMetadataProvider metadataProvider)`	Checks all the transforms and fills a List of (CheckResult) remarks.
`void`	`clear()`	Clears the pipeline's meta-data, including the lists of databases, transforms, hops, notes, dependencies, partition schemas, hop servers, and cluster schemas.
`void`	`clearCaches()`	Clears the transform fields and loop caches.
`void`	`clearChanged()`	Clears the different changed flags of the pipeline.
`Object`	`clone()`	Clones the pipeline meta-data object.
`int`	`compare(PipelineMeta t1, PipelineMeta t2)`	Compares two pipeline on name and filename.
`int`	`compareTo(PipelineMeta o)`	Compares this pipeline's meta-data to the specified pipeline's meta-data.
`boolean`	`containsTransformMeta(TransformMeta transformMeta)`
`boolean`	`equals(Object obj)`	Checks whether this pipeline's meta-data object is equal to the specified object.
`String`	`exportResources(IVariables variables, Map<String,ResourceDefinition> definitions, IResourceNaming iResourceNaming, IHopMetadataProvider metadataProvider)`	Exports the specified objects to a flat-file system, adding content with filename keys to a set of definitions.
`List<PipelineHopMeta>`	`findAllPipelineHopFrom(TransformMeta fromTransform)`
`TransformMeta`	`findMappingInputTransform(String transformName)`	Finds the mapping input transform with the specified name.
`TransformMeta`	`findMappingOutputTransform(String transformName)`	Finds the mapping output transform with the specified name.
`List<TransformMeta>`	`findNextTransforms(TransformMeta transformMeta)`	Retrieve a list of succeeding transforms for a certain originating transform.
`int`	`findNrInfoTransforms(TransformMeta transformMeta)`	Find the the number of informational transforms for a certain transform.
`PipelineHopMeta`	`findPipelineHop(String name)`	Searches the list of hops for a hop with a certain name.
`PipelineHopMeta`	`findPipelineHop(PipelineHopMeta hi)`	Find a certain hop in the pipeline.
`PipelineHopMeta`	`findPipelineHop(TransformMeta from, TransformMeta to)`	Search all hops for a hop where a certain transform is at the start and another is at the end.
`PipelineHopMeta`	`findPipelineHop(TransformMeta from, TransformMeta to, boolean disabledToo)`	Search all hops for a hop where a certain transform is at the start and another is at the end.
`PipelineHopMeta`	`findPipelineHopFrom(TransformMeta fromTransform)`	Search all hops for a hop where a certain transform is at the start.
`PipelineHopMeta`	`findPipelineHopTo(TransformMeta toTransform)`	Search all hops for a hop where a certain transform is at the end.
`boolean`	`findPrevious(TransformMeta startTransform, TransformMeta transformToFind)`	Looks in the pipeline to find a transform in a previous location starting somewhere.
`List<TransformMeta>`	`findPreviousTransforms(TransformMeta transformMeta)`	Get the list of previous transforms for a certain reference transform.
`List<TransformMeta>`	`findPreviousTransforms(TransformMeta transformMeta, boolean info)`	Get the previous transforms on a certain location taking into account the transforms being informational or not.
`TransformMeta`	`findTransform(String name)`	Searches the list of transforms for a transform with a certain name.
`TransformMeta`	`findTransform(String name, TransformMeta exclude)`	Searches the list of transforms for a transform with a certain name while excluding one transform.
`String`	`getAlternativeTransformName(String transformName)`	Proposes an alternative transformName when the original already exists.
`Date`	`getCreatedDate()`	Gets the date the pipeline was created.
`String`	`getCreatedUser()`	Gets the user by whom the pipeline was created.
`String`	`getDescription()`	Gets the description of the workflow.
`String`	`getExtendedDescription()`	Gets the extended description of the workflow.
`protected String`	`getExtension()`
`List<PipelineHopMeta>`	`getHops()`	Gets hops
`PipelineMetaInfo`	`getInfo()`	Gets info
`TransformMeta[]`	`getInfoTransform(TransformMeta transformMeta)`	Get the informational transforms for a certain transform.
`Point`	`getMaximum()`	Gets the maximum size of the canvas by calculating the maximum location of a transform.
`Point`	`getMinimum()`	Gets the minimum point on the canvas of a pipeline.
`List<Missing>`	`getMissingPipeline()`
`Date`	`getModifiedDate()`	Gets the date the pipeline was modified.
`String`	`getModifiedUser()`	Gets the user who last modified the pipeline.
`String`	`getName()`	Get the name of the pipeline.
`String[]`	`getNextTransformNames(TransformMeta transformMeta)`	Retrieve an array of succeeding transform names for a certain originating transform.
`PipelineHopMeta`	`getPipelineHop(int i)`	Retrieves a hop on a certain location (i.e.
`List<PipelineHopMeta>`	`getPipelineHops()`	Get a list of defined hops in this pipeline.
`List<TransformMeta>`	`getPipelineHopTransforms(boolean all)`	Gets a List of all the transforms that are used in at least one active hop.
`int`	`getPipelineStatus()`	Gets the status of the pipeline.
`PipelineMeta.PipelineType`	`getPipelineType()`	Gets the pipeline type.
`String`	`getPipelineVersion()`	Gets the version of the pipeline.
`IRowMeta`	`getPrevInfoFields(IVariables variables, String transformName)`	Find the informational fields coming from an informational transform into the transform specified.
`IRowMeta`	`getPrevInfoFields(IVariables variables, TransformMeta transformMeta)`	Find the informational fields coming from an informational transform into the transform specified.
`IRowMeta`	`getPrevTransformFields(IVariables variables, String transformName)`	Find the fields that are entering a transform with a certain name.
`IRowMeta`	`getPrevTransformFields(IVariables variables, TransformMeta transformMeta)`	Find the fields that are entering a certain transform.
`IRowMeta`	`getPrevTransformFields(IVariables variables, TransformMeta transformMeta, String transformName, IProgressMonitor monitor)`
`IRowMeta`	`getPrevTransformFields(IVariables variables, TransformMeta transformMeta, IProgressMonitor monitor)`	Find the fields that are entering a certain transform.
`String[]`	`getPrevTransformNames(String transformName)`	Retrieve an array of succeeding transform names for a certain originating transform name.
`String[]`	`getPrevTransformNames(TransformMeta transformMeta)`	Retrieve an array of preceding transforms for a certain destination transform.
`TransformMeta[]`	`getPrevTransforms(TransformMeta transformMeta)`	Retrieve an array of preceding transforms for a certain destination transform.
`List<ResourceReference>`	`getResourceDependencies(IVariables variables)`	Gets a list of the resource dependencies.
`Point[]`	`getSelectedNoteLocations()`	Get an array of all the selected note locations.
`Point[]`	`getSelectedTransformLocations()`	Get an array of all the selected transform locations.
`String[]`	`getSelectedTransformNames()`	Gets an array of all the selected transform names.
`List<TransformMeta>`	`getSelectedTransforms()`	Gets a list of the selected transforms.
`List<SqlStatement>`	`getSqlStatements(IVariables variables)`	Builds a list of all the Sql statements that this pipeline needs in order to work properly.
`List<SqlStatement>`	`getSqlStatements(IVariables variables, IProgressMonitor monitor)`	Builds a list of all the Sql statements that this pipeline needs in order to work properly.
`String`	`getSqlStatementsString(IVariables variables)`	Get the Sql statements (needed to run this pipeline) as a single String.
`List<StringSearchResult>`	`getStringList(boolean searchTransforms, boolean searchDatabases, boolean searchNotes)`	Get a list of all the strings used in this pipeline.
`List<StringSearchResult>`	`getStringList(boolean searchTransforms, boolean searchDatabases, boolean searchNotes, boolean includePasswords)`	Gets a list of all the strings used in this pipeline.
`IRowMeta`	`getThisTransformFields(IVariables variables, String transformName, IRowMeta row)`	Return the fields that are emitted by a transform with a certain name.
`IRowMeta`	`getThisTransformFields(IVariables variables, TransformMeta transformMeta, TransformMeta nextTransform, IRowMeta row)`	Returns the fields that are emitted by a transform.
`IRowMeta`	`getThisTransformFields(IVariables variables, TransformMeta transformMeta, TransformMeta nextTransform, IRowMeta row, IProgressMonitor monitor)`	Returns the fields that are emitted by a transform.
`TransformMeta`	`getTransform(int i)`	Retrieves a transform on a certain location (i.e.
`TransformMeta`	`getTransform(int x, int y, int iconsize)`	Find the transform that is located on a certain point on the canvas, taking into account the icon size.
`IRowMeta`	`getTransformFields(IVariables variables, String transformName)`	Returns the fields that are emitted by a certain transform name.
`IRowMeta`	`getTransformFields(IVariables variables, TransformMeta transformMeta)`	Returns the fields that are emitted by a certain transform.
`IRowMeta`	`getTransformFields(IVariables variables, TransformMeta[] transformMeta)`	Gets the fields for each of the specified transforms and merges them into a single set
`IRowMeta`	`getTransformFields(IVariables variables, TransformMeta transformMeta, IProgressMonitor monitor)`	Returns the fields that are emitted by a certain transform.
`IRowMeta`	`getTransformFields(IVariables variables, TransformMeta transformMeta, TransformMeta targetTransform, IProgressMonitor monitor)`	Returns the fields that are emitted by a certain transform.
`int[]`	`getTransformIndexes(List<TransformMeta> transforms)`	Gets an array of the locations of an array of transforms.
`String[]`	`getTransformNames()`	Gets the names of all the transforms.
`long`	`getTransformPerformanceCapturingDelay()`	Gets the transform performance capturing delay.
`String`	`getTransformPerformanceCapturingSizeLimit()`	Gets the transform performance capturing size limit.
`List<TransformMeta>`	`getTransforms()`	Get a list of defined transforms in this pipeline.
`TransformMeta[]`	`getTransformsArray()`	Gets all the transforms as an array.
`List<TransformMeta>`	`getUsedTransforms()`	Gets the list of used transforms, which are the transforms that are connected by hops.
`List<String>`	`getUsedVariables()`	Gets a list of the used variables in this pipeline.
`String`	`getXml(IVariables variables)`	Gets the XML representation of this pipeline.
`boolean`	`hasChanged()`	Checks whether or not the pipeline has changed.
`boolean`	`hasLoop(TransformMeta transformMeta)`	See if there are any loops in the pipeline, starting at the indicated transform.
`boolean`	`hasLoop(TransformMeta transformMeta, TransformMeta lookup)`	Checks for loop.
`boolean`	`hasMissingPlugins()`
`boolean`	`haveHopsChanged()`	Checks whether or not any of the hops have been changed.
`boolean`	`haveTransformsChanged()`	Checks whether or not the transforms have changed.
`int`	`indexOfPipelineHop(PipelineHopMeta hi)`	Finds the location (index) of the specified hop.
`int`	`indexOfTransform(TransformMeta transformMeta)`	Finds the location (index) of the specified transform.
`boolean`	`isAnySelectedTransformUsedInPipelineHops()`	Checks if any selected transform has been used in a hop or not.
`boolean`	`isCapturingTransformPerformanceSnapShots()`	Checks whether the pipeline is capturing transform performance snapshots.
`boolean`	`isEmpty()`
`boolean`	`isNameSynchronizedWithFilename()`
`boolean`	`isTransformInformative(TransformMeta thisTransform, TransformMeta prevTransform)`	Determines whether or not a certain transform is informative.
`boolean`	`isTransformUsedInPipelineHops(TransformMeta transformMeta)`	Checks if a transform has been used in a hop or not.
`boolean`	`isUsingPartitionSchema(PartitionSchema partitionSchema)`	Checks if the pipeline is using the specified partition schema.
`void`	`loadXml(String fname, IHopMetadataProvider metadataProvider, IVariables parentVariableSpace)`
`void`	`loadXml(Node pipelineNode, String filename, IHopMetadataProvider metadataProvider, IVariables variables)`	Parses an XML DOM (starting at the specified Node) that describes the pipeline.
`void`	`notifyAllListeners(TransformMeta oldMeta, TransformMeta newMeta)`
`int`	`nrPipelineHops()`	Gets the number of hops in the pipeline.
`int`	`nrTransformChangeListeners()`	Gets the number of transformChangeListeners in the pipeline.
`int`	`nrTransforms()`	Gets the number of transforms in the pipeline.
`boolean`	`partOfPipelineHop(TransformMeta transformMeta)`	Determines whether or not a certain transform is part of a hop.
`Object`	`realClone(boolean doClear)`	Perform a real clone of the pipeline meta-data object, including cloning all lists and copying all values.
`void`	`removeMissingPipeline(Missing pipeline)`
`void`	`removePipelineHop(int i)`	Removes a hop from the pipeline on a certain location (i.e.
`void`	`removePipelineHop(PipelineHopMeta hop)`	Removes a hop from the pipeline.
`void`	`removeTransform(int i)`	Removes a transform from the pipeline on a certain location (i.e.
`void`	`removeTransformChangeListener(ITransformMetaChangeListener list)`
`void`	`selectAll()`	Mark all transforms in the pipeline as selected.
`void`	`setCapturingTransformPerformanceSnapShots(boolean capturingTransformPerformanceSnapShots)`	Sets whether the pipeline is capturing transform performance snapshots.
`void`	`setCreatedDate(Date createdDate)`	Sets the date the pipeline was created.
`void`	`setCreatedUser(String createdUser)`	Sets the user by whom the pipeline was created.
`void`	`setDescription(String description)`	Set the description of the workflow.
`void`	`setExtendedDescription(String extendedDescription)`	Set the description of the workflow.
`void`	`setHops(List<PipelineHopMeta> hops)`	Sets hops
`void`	`setInfo(PipelineMetaInfo info)`	Sets info
`protected void`	`setInternalEntryCurrentDirectory(IVariables variables)`
`protected void`	`setInternalFilenameHopVariables(IVariables variables)`	Sets the internal filename hop variables.
`void`	`setInternalHopVariables(IVariables variables)`	Sets the internal hop variables.
`protected void`	`setInternalNameHopVariable(IVariables variables)`	Sets the internal name hop variable.
`void`	`setModifiedDate(Date modifiedDate)`	Sets the date the pipeline was modified.
`void`	`setModifiedUser(String modifiedUser)`	Sets the user who last modified the pipeline.
`void`	`setName(String newName)`	Set the name.
`void`	`setNameSynchronizedWithFilename(boolean nameSynchronizedWithFilename)`
`void`	`setPipelineHop(int i, PipelineHopMeta hi)`	Changes the content of a hop on a certain position.
`void`	`setPipelineStatus(int pipelineStatus)`	Sets the status of the pipeline.
`void`	`setPipelineType(PipelineMeta.PipelineType pipelineType)`	Sets the pipeline type.
`void`	`setPipelineVersion(String pipelineVersion)`	Sets the version of the pipeline.
`void`	`setTransform(int i, TransformMeta transformMeta)`	Changes the content of a transform on a certain position.
`void`	`setTransformPerformanceCapturingDelay(long transformPerformanceCapturingDelay)`	Sets the transform performance capturing delay.
`void`	`setTransformPerformanceCapturingSizeLimit(String transformPerformanceCapturingSizeLimit)`	Sets the transform performance capturing size limit.
`void`	`setTransforms(List<TransformMeta> transforms)`	Sets transforms
`void`	`sortHops()`	Sorts all the hops in the pipeline.
`void`	`sortHopsNatural()`	Sorts the hops in a natural way: from beginning to end.
`void`	`sortTransforms()`	Puts the transforms in alphabetical order.
`Map<TransformMeta,Map<TransformMeta,Boolean>>`	`sortTransformsNatural()`	Puts the transforms in a more natural order: from start to finish.
`String`	`toString()`	Gets a textual representation of the pipeline.
`void`	`unselectAll()`	Clear the selection of all transforms.

Methods inherited from class org.apache.hop.base.AbstractMeta
addContentChangedListener, addCurrentDirectoryChangedListener, addFilenameChangedListener, addNameChangedListener, addNote, addNote, addObserver, addParameterDefinition, addUndo, canSave, clearNameChangedListeners, clearUndo, compare, deleteObserver, extractNameFromFilename, findDatabase, findDatabase, findHopServer, fireContentChangedListeners, fireContentChangedListeners, fireCurrentDirectoryChanged, fireFilenameChangedListeners, fireNameChangedListeners, getAttribute, getAttributes, getAttributesMap, getContentChangedListeners, getDatabaseNames, getDatabases, getFilename, getHopServerNames, getMaxUndo, getMetadataProvider, getNote, getNote, getNoteIndexes, getNotes, getParameterDefault, getParameterDescription, getSelectedNotes, getUndoSize, hashCode, haveNotesChanged, indexOfNote, isAlwaysShowRunOptions, isClearingLog, isSafeModeEnabled, isShowDialog, listParameters, lowerNote, nameFromFilename, nextUndo, notifyObservers, nrDatabases, nrNotes, previousUndo, raiseNote, removeAllParameters, removeContentChangedListener, removeCurrentDirectoryChangedListener, removeFilenameChangedListener, removeNameChangedListener, removeNote, setAlwaysShowRunOptions, setAttribute, setAttributes, setAttributesMap, setChanged, setChanged, setClearingLog, setFilename, setMaxUndo, setMetadataProvider, setNotes, setSafeModeEnabled, setShowDialog, viewNextUndo, viewPreviousUndo, viewThisUndo

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Comparator
reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface org.apache.hop.core.file.IHasFilename
getFilename

- Field Detail
  - PIPELINE_EXTENSION
```
public static final String PIPELINE_EXTENSION
```
    See Also:
    
    Constant Field Values
  - XML_TAG
```
public static final String XML_TAG
```
    A constant specifying the tag value for the XML node of the pipeline.
    
    See Also:
    
    Constant Field Values
  - BORDER_INDENT
```
public static final int BORDER_INDENT
```
    See Also:
    
    Constant Field Values
  - info
```
protected PipelineMetaInfo info
```
  - transforms
```
protected List<TransformMeta> transforms
```
    The list of transforms associated with the pipeline.
  - hops
```
protected List<PipelineHopMeta> hops
```
    The list of hops associated with the pipeline.
  - pipelineStatus
```
protected int pipelineStatus
```
    The status of the pipeline.
  - changedTransforms
```
protected boolean changedTransforms
```
    Indicators for changes in transforms, databases, hops, and notes.
  - changedHops
```
protected boolean changedHops
```
  - previousResult
```
protected Result previousResult
```
    The previous result.
  - transformFieldsCache
```
protected Map<String,IRowMeta> transformFieldsCache
```
    The transforms fields cache.
  - loopCache
```
protected Map<String,Boolean> loopCache
```
    The loop cache.
  - previousTransformCache
```
protected Map<String,List<TransformMeta>> previousTransformCache
```
    The previous transform cache
  - transformChangeListeners
```
protected List<ITransformMetaChangeListener> transformChangeListeners
```
    The list of TransformChangeListeners
  - descTypeUndo
```
public static final String[] descTypeUndo
```
    A list of localized strings corresponding to string descriptions of the undo/redo actions.
  - XML_TAG_INFO
```
protected static final String XML_TAG_INFO
```
    A constant specifying the tag value for the XML node of the pipeline information.
    
    See Also:
    
    Constant Field Values
  - XML_TAG_ORDER
```
public static final String XML_TAG_ORDER
```
    A constant specifying the tag value for the XML node of the order of transforms.
    
    See Also:
    
    Constant Field Values
  - XML_TAG_NOTEPADS
```
public static final String XML_TAG_NOTEPADS
```
    A constant specifying the tag value for the XML node of the notes.
    
    See Also:
    
    Constant Field Values
  - XML_TAG_PARAMETERS
```
public static final String XML_TAG_PARAMETERS
```
    A constant specifying the tag value for the XML node of the pipeline parameters.
    
    See Also:
    
    Constant Field Values
  - XML_TAG_TRANSFORM_ERROR_HANDLING
```
public static final String XML_TAG_TRANSFORM_ERROR_HANDLING
```
    A constant specifying the tag value for the XML node of the transforms' error-handling information.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - PipelineMeta
```
public PipelineMeta()
```
    Builds a new empty pipeline. The pipeline will have default logging capability and no variables, and all internal meta-data is cleared to defaults.
  - PipelineMeta
```
public PipelineMeta(String fname,
                    IHopMetadataProvider metadataProvider,
                    IVariables parentVariableSpace)
             throws HopXmlException,
                    HopMissingPluginsException
```
    Parses a file containing the XML that describes the pipeline.
    
    Parameters:
    
    fname - The filename
    
    metadataProvider - the metadata store to reference (or null if there is none)
    
    parentVariableSpace - the parent variable variables to use during PipelineMeta construction
    
    Throws:
    
    HopXmlException - if any errors occur during parsing of the specified file
    
    HopMissingPluginsException - in case missing plugins were found (details are in the exception in that case)
  - PipelineMeta
```
public PipelineMeta(InputStream xmlStream,
                    IHopMetadataProvider metadataProvider,
                    IVariables parentVariableSpace)
             throws HopXmlException,
                    HopMissingPluginsException
```
    Instantiates a new pipeline meta-data object.
    
    Parameters:
    
    xmlStream - the XML input stream from which to read the pipeline definition
    
    parentVariableSpace - the parent variable variables
    
    Throws:
    
    HopXmlException - if any errors occur during parsing of the specified stream
    
    HopMissingPluginsException - in case missing plugins were found (details are in the exception in that case)
  - PipelineMeta
```
public PipelineMeta(Node pipelineNode,
                    IHopMetadataProvider metadataProvider)
             throws HopXmlException,
                    HopMissingPluginsException
```
    Parse a file containing the XML that describes the pipeline.
    
    Parameters:
    
    pipelineNode - The XML node to load from
    
    Throws:
    
    HopXmlException - if any errors occur during parsing of the specified file
    
    HopMissingPluginsException - in case missing plugins were found (details are in the exception in that case)
- Method Detail
  - compare
```
public int compare(PipelineMeta t1,
                   PipelineMeta t2)
```
    Compares two pipeline on name and filename. The comparison algorithm is as follows:
    
    The first pipeline's filename is checked first; if it has none, the pipeline is generated If the second pipeline is not generated, -1 is returned.
    If the pipelines are both generated, the pipelines' names are compared. If the first pipeline has no name and the second one does, a -1 is returned. If the opposite is true, 1 is returned.
    If they both have names they are compared as strings. If the result is non-zero it is returned. Otherwise the repository directories are compared using the same technique of checking empty values and then performing a string comparison, returning any non-zero result.
    Specified by:
    
    compare in interface Comparator<PipelineMeta>
    
    Parameters:
    
    t1 - the first pipeline to compare
    
    t2 - the second pipeline to compare
    
    Returns:
    
    0 if the two pipelines are equal, 1 or -1 depending on the values (see description above)
  - compareTo
```
public int compareTo(PipelineMeta o)
```
    Compares this pipeline's meta-data to the specified pipeline's meta-data. This method simply calls compare(this, o)
    
    Specified by:
    
    compareTo in interface Comparable<PipelineMeta>
    
    Parameters:
    
    o - the o
    
    Returns:
    
    the int
    
    See Also:
    
    compare(PipelineMeta, PipelineMeta), Comparable.compareTo(Object)
  - equals
```
public boolean equals(Object obj)
```
    Checks whether this pipeline's meta-data object is equal to the specified object. If the specified object is not an instance of PipelineMeta, false is returned. Otherwise the method returns whether a call to compare() indicates equality (i.e. compare(this, (PipelineMeta)obj)==0).
    
    Specified by:
    
    equals in interface Comparator<PipelineMeta>
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    obj - the obj
    
    Returns:
    
    true, if successful
    
    See Also:
    
    compare(PipelineMeta, PipelineMeta), Object.equals(Object)
  - clone
```
public Object clone()
```
    Clones the pipeline meta-data object.
    
    Overrides:
    
    clone in class Object
    
    Returns:
    
    a clone of the pipeline meta-data object
    
    See Also:
    
    Object.clone()
  - realClone
```
public Object realClone(boolean doClear)
```
    Perform a real clone of the pipeline meta-data object, including cloning all lists and copying all values. If the doClear parameter is true, the clone will be cleared of ALL values before the copy. If false, only the copied fields will be cleared.
    
    Parameters:
    
    doClear - Whether to clear all of the clone's data before copying from the source object
    
    Returns:
    
    a real clone of the calling object
  - getExtension
```
protected String getExtension()
```
    Specified by:
    
    getExtension in class AbstractMeta
  - clear
```
public void clear()
```
    Clears the pipeline's meta-data, including the lists of databases, transforms, hops, notes, dependencies, partition schemas, hop servers, and cluster schemas. Logging information and timeouts are reset to defaults, and recent connection info is cleared.
    
    Overrides:
    
    clear in class AbstractMeta
  - addTransform
```
public void addTransform(TransformMeta transformMeta)
```
    Add a new transform to the pipeline. Also marks that the pipeline's transforms have changed.
    
    Parameters:
    
    transformMeta - The meta-data for the transform to be added.
  - addOrReplaceTransform
```
public void addOrReplaceTransform(TransformMeta transformMeta)
```
    Add a new transform to the pipeline if that transform didn't exist yet. Otherwise, replace the transform. This method also marks that the pipeline's transforms have changed.
    
    Parameters:
    
    transformMeta - The meta-data for the transform to be added.
  - addPipelineHop
```
public void addPipelineHop(PipelineHopMeta hi)
```
    Add a new hop to the pipeline. The hop information (source and target transforms, e.g.) should be configured in the PipelineHopMeta object before calling addPipelineHop(). Also marks that the pipeline's hops have changed.
    
    Parameters:
    
    hi - The hop meta-data to be added.
  - addTransform
```
public void addTransform(int p,
                         TransformMeta transformMeta)
```
    Add a new transform to the pipeline at the specified index. This method sets the transform's parent pipeline to the this pipeline, and marks that the pipelines' transforms have changed.
    
    Parameters:
    
    p - The index into the transform list
    
    transformMeta - The transform to be added.
  - addPipelineHop
```
public void addPipelineHop(int p,
                           PipelineHopMeta hi)
```
    Add a new hop to the pipeline on a certain location (i.e. the specified index). Also marks that the pipeline's hops have changed.
    
    Parameters:
    
    p - the index into the hop list
    
    hi - The hop to be added.
  - getTransforms
```
public List<TransformMeta> getTransforms()
```
    Get a list of defined transforms in this pipeline.
    
    Returns:
    
    an ArrayList of defined transforms.
  - getTransform
```
public TransformMeta getTransform(int i)
```
    Retrieves a transform on a certain location (i.e. the specified index).
    
    Parameters:
    
    i - The index into the transforms list.
    
    Returns:
    
    The desired transform's meta-data.
  - getPipelineHops
```
public List<PipelineHopMeta> getPipelineHops()
```
    Get a list of defined hops in this pipeline.
    
    Returns:
    
    a list of defined hops.
  - getPipelineHop
```
public PipelineHopMeta getPipelineHop(int i)
```
    Retrieves a hop on a certain location (i.e. the specified index).
    
    Parameters:
    
    i - The index into the hops list.
    
    Returns:
    
    The desired hop's meta-data.
  - removeTransform
```
public void removeTransform(int i)
```
    Removes a transform from the pipeline on a certain location (i.e. the specified index). Also marks that the pipeline's transforms have changed.
    
    Parameters:
    
    i - The index
  - removePipelineHop
```
public void removePipelineHop(int i)
```
    Removes a hop from the pipeline on a certain location (i.e. the specified index). Also marks that the pipeline's hops have changed.
    
    Parameters:
    
    i - The index into the hops list
  - removePipelineHop
```
public void removePipelineHop(PipelineHopMeta hop)
```
    Removes a hop from the pipeline. Also marks that the pipeline's hops have changed.
    
    Parameters:
    
    hop - The hop to remove from the list of hops
  - nrTransforms
```
public int nrTransforms()
```
    Gets the number of transforms in the pipeline.
    
    Returns:
    
    The number of transforms in the pipeline.
  - nrPipelineHops
```
public int nrPipelineHops()
```
    Gets the number of hops in the pipeline.
    
    Returns:
    
    The number of hops in the pipeline.
  - nrTransformChangeListeners
```
public int nrTransformChangeListeners()
```
    Gets the number of transformChangeListeners in the pipeline.
    
    Returns:
    
    The number of transformChangeListeners in the pipeline.
  - setTransform
```
public void setTransform(int i,
                         TransformMeta transformMeta)
```
    Changes the content of a transform on a certain position. This is accomplished by setting the transform's metadata at the specified index to the specified meta-data object. The new transform's parent pipeline is updated to be this pipeline.
    
    Parameters:
    
    i - The index into the transforms list
    
    transformMeta - The transform meta-data to set
  - setPipelineHop
```
public void setPipelineHop(int i,
                           PipelineHopMeta hi)
```
    Changes the content of a hop on a certain position. This is accomplished by setting the hop's metadata at the specified index to the specified meta-data object.
    
    Parameters:
    
    i - The index into the hops list
    
    hi - The hop meta-data to set
  - getUsedTransforms
```
public List<TransformMeta> getUsedTransforms()
```
    Gets the list of used transforms, which are the transforms that are connected by hops.
    
    Returns:
    
    a list with all the used transforms
  - findTransform
```
public TransformMeta findTransform(String name)
```
    Searches the list of transforms for a transform with a certain name.
    
    Parameters:
    
    name - The name of the transform to look for
    
    Returns:
    
    The transform information or null if no nothing was found.
  - findTransform
```
public TransformMeta findTransform(String name,
                                   TransformMeta exclude)
```
    Searches the list of transforms for a transform with a certain name while excluding one transform.
    
    Parameters:
    
    name - The name of the transform to look for
    
    exclude - The transform information to exclude.
    
    Returns:
    
    The transform information or null if nothing was found.
  - findPipelineHop
```
public PipelineHopMeta findPipelineHop(String name)
```
    Searches the list of hops for a hop with a certain name.
    
    Parameters:
    
    name - The name of the hop to look for
    
    Returns:
    
    The hop information or null if nothing was found.
  - findPipelineHopFrom
```
public PipelineHopMeta findPipelineHopFrom(TransformMeta fromTransform)
```
    Search all hops for a hop where a certain transform is at the start.
    
    Parameters:
    
    fromTransform - The transform at the start of the hop.
    
    Returns:
    
    The hop or null if no hop was found.
  - findAllPipelineHopFrom
```
public List<PipelineHopMeta> findAllPipelineHopFrom(TransformMeta fromTransform)
```
  - findPipelineHop
```
public PipelineHopMeta findPipelineHop(PipelineHopMeta hi)
```
    Find a certain hop in the pipeline.
    
    Parameters:
    
    hi - The hop information to look for.
    
    Returns:
    
    The hop or null if no hop was found.
  - findPipelineHop
```
public PipelineHopMeta findPipelineHop(TransformMeta from,
                                       TransformMeta to)
```
    Search all hops for a hop where a certain transform is at the start and another is at the end.
    
    Parameters:
    
    from - The transform at the start of the hop.
    
    to - The transform at the end of the hop.
    
    Returns:
    
    The hop or null if no hop was found.
  - findPipelineHop
```
public PipelineHopMeta findPipelineHop(TransformMeta from,
                                       TransformMeta to,
                                       boolean disabledToo)
```
    Search all hops for a hop where a certain transform is at the start and another is at the end.
    
    Parameters:
    
    from - The transform at the start of the hop.
    
    to - The transform at the end of the hop.
    
    disabledToo - the disabled too
    
    Returns:
    
    The hop or null if no hop was found.
  - findPipelineHopTo
```
public PipelineHopMeta findPipelineHopTo(TransformMeta toTransform)
```
    Search all hops for a hop where a certain transform is at the end.
    
    Parameters:
    
    toTransform - The transform at the end of the hop.
    
    Returns:
    
    The hop or null if no hop was found.
  - isTransformInformative
```
public boolean isTransformInformative(TransformMeta thisTransform,
                                      TransformMeta prevTransform)
```
    Determines whether or not a certain transform is informative. This means that the previous transform is sending information to this transform, but only informative. This means that this transform is using the information to process the actual stream of data. We use this in StreamLookup, TableInput and other types of transforms.
    
    Parameters:
    
    thisTransform - The transform that is receiving information.
    
    prevTransform - The transform that is sending information
    
    Returns:
    
    true if prevTransform if informative for thisTransform.
  - findPreviousTransforms
```
public List<TransformMeta> findPreviousTransforms(TransformMeta transformMeta)
```
    Get the list of previous transforms for a certain reference transform. This includes the info transforms.
    
    Parameters:
    
    transformMeta - The reference transform
    
    Returns:
    
    The list of the preceding transforms, including the info transforms.
  - findPreviousTransforms
```
public List<TransformMeta> findPreviousTransforms(TransformMeta transformMeta,
                                                  boolean info)
```
    Get the previous transforms on a certain location taking into account the transforms being informational or not.
    
    Parameters:
    
    transformMeta - The name of the transform
    
    info - true if we only want the informational transforms.
    
    Returns:
    
    The list of the preceding transforms
  - getInfoTransform
```
public TransformMeta[] getInfoTransform(TransformMeta transformMeta)
```
    Get the informational transforms for a certain transform. An informational transform is a transform that provides information for lookups, etc.
    
    Parameters:
    
    transformMeta - The name of the transform
    
    Returns:
    
    An array of the informational transforms found
  - findNrInfoTransforms
```
public int findNrInfoTransforms(TransformMeta transformMeta)
```
    Find the the number of informational transforms for a certain transform.
    
    Parameters:
    
    transformMeta - The transform
    
    Returns:
    
    The number of informational transforms found.
  - getPrevInfoFields
```
public IRowMeta getPrevInfoFields(IVariables variables,
                                  String transformName)
                           throws HopTransformException
```
    Find the informational fields coming from an informational transform into the transform specified.
    
    Parameters:
    
    transformName - The name of the transform
    
    Returns:
    
    A row containing fields with origin.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevInfoFields
```
public IRowMeta getPrevInfoFields(IVariables variables,
                                  TransformMeta transformMeta)
                           throws HopTransformException
```
    Find the informational fields coming from an informational transform into the transform specified.
    
    Parameters:
    
    transformMeta - The receiving transform
    
    Returns:
    
    A row containing fields with origin.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevTransforms
```
public TransformMeta[] getPrevTransforms(TransformMeta transformMeta)
```
    Retrieve an array of preceding transforms for a certain destination transform. This includes the info transforms.
    
    Parameters:
    
    transformMeta - The destination transform
    
    Returns:
    
    An array containing the preceding transforms.
  - getPrevTransformNames
```
public String[] getPrevTransformNames(String transformName)
```
    Retrieve an array of succeeding transform names for a certain originating transform name.
    
    Parameters:
    
    transformName - The originating transform name
    
    Returns:
    
    An array of succeeding transform names
  - getPrevTransformNames
```
public String[] getPrevTransformNames(TransformMeta transformMeta)
```
    Retrieve an array of preceding transforms for a certain destination transform.
    
    Parameters:
    
    transformMeta - The destination transform
    
    Returns:
    
    an array of preceding transform names.
  - findNextTransforms
```
public List<TransformMeta> findNextTransforms(TransformMeta transformMeta)
```
    Retrieve a list of succeeding transforms for a certain originating transform.
    
    Parameters:
    
    transformMeta - The originating transform
    
    Returns:
    
    an array of succeeding transforms.
  - getNextTransformNames
```
public String[] getNextTransformNames(TransformMeta transformMeta)
```
    Retrieve an array of succeeding transform names for a certain originating transform.
    
    Parameters:
    
    transformMeta - The originating transform
    
    Returns:
    
    an array of succeeding transform names.
  - getTransform
```
public TransformMeta getTransform(int x,
                                  int y,
                                  int iconsize)
```
    Find the transform that is located on a certain point on the canvas, taking into account the icon size.
    
    Parameters:
    
    x - the x-coordinate of the point queried
    
    y - the y-coordinate of the point queried
    
    iconsize - the iconsize
    
    Returns:
    
    The transform information if a transform is located at the point. Otherwise, if no transform was found: null.
  - partOfPipelineHop
```
public boolean partOfPipelineHop(TransformMeta transformMeta)
```
    Determines whether or not a certain transform is part of a hop.
    
    Parameters:
    
    transformMeta - The transform queried
    
    Returns:
    
    true if the transform is part of a hop.
  - getTransformFields
```
public IRowMeta getTransformFields(IVariables variables,
                                   String transformName)
                            throws HopTransformException
```
    Returns the fields that are emitted by a certain transform name.
    
    Parameters:
    
    transformName - The transformName of the transform to be queried.
    
    Returns:
    
    A row containing the fields emitted.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getTransformFields
```
public IRowMeta getTransformFields(IVariables variables,
                                   TransformMeta transformMeta)
                            throws HopTransformException
```
    Returns the fields that are emitted by a certain transform.
    
    Parameters:
    
    transformMeta - The transform to be queried.
    
    Returns:
    
    A row containing the fields emitted.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getTransformFields
```
public IRowMeta getTransformFields(IVariables variables,
                                   TransformMeta[] transformMeta)
                            throws HopTransformException
```
    Gets the fields for each of the specified transforms and merges them into a single set
    
    Parameters:
    
    transformMeta - the transform meta
    
    Returns:
    
    an interface to the transform fields
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getTransformFields
```
public IRowMeta getTransformFields(IVariables variables,
                                   TransformMeta transformMeta,
                                   IProgressMonitor monitor)
                            throws HopTransformException
```
    Returns the fields that are emitted by a certain transform.
    
    Parameters:
    
    transformMeta - The transform to be queried.
    
    monitor - The progress monitor for progress dialog. (null if not used!)
    
    Returns:
    
    A row containing the fields emitted.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getTransformFields
```
public IRowMeta getTransformFields(IVariables variables,
                                   TransformMeta transformMeta,
                                   TransformMeta targetTransform,
                                   IProgressMonitor monitor)
                            throws HopTransformException
```
    Returns the fields that are emitted by a certain transform.
    
    Parameters:
    
    transformMeta - The transform to be queried.
    
    targetTransform - the target transform
    
    monitor - The progress monitor for progress dialog. (null if not used!)
    
    Returns:
    
    A row containing the fields emitted.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevTransformFields
```
public IRowMeta getPrevTransformFields(IVariables variables,
                                       String transformName)
                                throws HopTransformException
```
    Find the fields that are entering a transform with a certain name.
    
    Parameters:
    
    transformName - The name of the transform queried
    
    Returns:
    
    A row containing the fields (w/ origin) entering the transform
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevTransformFields
```
public IRowMeta getPrevTransformFields(IVariables variables,
                                       TransformMeta transformMeta)
                                throws HopTransformException
```
    Find the fields that are entering a certain transform.
    
    Parameters:
    
    transformMeta - The transform queried
    
    Returns:
    
    A row containing the fields (w/ origin) entering the transform
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevTransformFields
```
public IRowMeta getPrevTransformFields(IVariables variables,
                                       TransformMeta transformMeta,
                                       IProgressMonitor monitor)
                                throws HopTransformException
```
    Find the fields that are entering a certain transform.
    
    Parameters:
    
    transformMeta - The transform queried
    
    monitor - The progress monitor for progress dialog. (null if not used!)
    
    Returns:
    
    A row containing the fields (w/ origin) entering the transform
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getPrevTransformFields
```
public IRowMeta getPrevTransformFields(IVariables variables,
                                       TransformMeta transformMeta,
                                       String transformName,
                                       IProgressMonitor monitor)
                                throws HopTransformException
```
    Throws:
    
    HopTransformException
  - getThisTransformFields
```
public IRowMeta getThisTransformFields(IVariables variables,
                                       String transformName,
                                       IRowMeta row)
                                throws HopTransformException
```
    Return the fields that are emitted by a transform with a certain name.
    
    Parameters:
    
    transformName - The name of the transform that's being queried.
    
    row - A row containing the input fields or an empty row if no input is required.
    
    Returns:
    
    A Row containing the output fields.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getThisTransformFields
```
public IRowMeta getThisTransformFields(IVariables variables,
                                       TransformMeta transformMeta,
                                       TransformMeta nextTransform,
                                       IRowMeta row)
                                throws HopTransformException
```
    Returns the fields that are emitted by a transform.
    
    Parameters:
    
    transformMeta - : The TransformMeta object that's being queried
    
    nextTransform - : if non-null this is the next transform that's call back to ask what's being sent
    
    row - : A row containing the input fields or an empty row if no input is required.
    
    Returns:
    
    A Row containing the output fields.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - getThisTransformFields
```
public IRowMeta getThisTransformFields(IVariables variables,
                                       TransformMeta transformMeta,
                                       TransformMeta nextTransform,
                                       IRowMeta row,
                                       IProgressMonitor monitor)
                                throws HopTransformException
```
    Returns the fields that are emitted by a transform.
    
    Parameters:
    
    transformMeta - : The TransformMeta object that's being queried
    
    nextTransform - : if non-null this is the next transform that's call back to ask what's being sent
    
    row - : A row containing the input fields or an empty row if no input is required.
    
    monitor - the monitor
    
    Returns:
    
    A Row containing the output fields.
    
    Throws:
    
    HopTransformException - the hop transform exception
  - isUsingPartitionSchema
```
public boolean isUsingPartitionSchema(PartitionSchema partitionSchema)
```
    Checks if the pipeline is using the specified partition schema.
    
    Parameters:
    
    partitionSchema - the partition schema
    
    Returns:
    
    true if the pipeline is using the partition schema, false otherwise
  - indexOfPipelineHop
```
public int indexOfPipelineHop(PipelineHopMeta hi)
```
    Finds the location (index) of the specified hop.
    
    Parameters:
    
    hi - The hop queried
    
    Returns:
    
    The location of the hop, or -1 if nothing was found.
  - indexOfTransform
```
public int indexOfTransform(TransformMeta transformMeta)
```
    Finds the location (index) of the specified transform.
    
    Parameters:
    
    transformMeta - The transform queried
    
    Returns:
    
    The location of the transform, or -1 if nothing was found.
  - getXml
```
public String getXml(IVariables variables)
              throws HopException
```
    Gets the XML representation of this pipeline.
    
    Specified by:
    
    getXml in interface IEngineMeta
    
    Specified by:
    
    getXml in interface IXml
    
    Parameters:
    
    variables -
    
    Returns:
    
    the XML representation of this pipeline
    
    Throws:
    
    HopException - if any errors occur during generation of the XML
    
    See Also:
    
    IXml.getXml(IVariables)
  - loadXml
```
public void loadXml(String fname,
                    IHopMetadataProvider metadataProvider,
                    IVariables parentVariableSpace)
             throws HopXmlException,
                    HopMissingPluginsException
```
    Throws:
    
    HopXmlException
    
    HopMissingPluginsException
  - loadXml
```
public void loadXml(Node pipelineNode,
                    String filename,
                    IHopMetadataProvider metadataProvider,
                    IVariables variables)
             throws HopXmlException,
                    HopMissingPluginsException
```
    Parses an XML DOM (starting at the specified Node) that describes the pipeline.
    
    Parameters:
    
    pipelineNode - The XML node to load from
    
    filename - The filename
    
    variables - the parent variable variables to use during PipelineMeta construction
    
    Throws:
    
    HopXmlException - if any errors occur during parsing of the specified file
    
    HopMissingPluginsException - in case missing plugins were found (details are in the exception in that case)
  - getPipelineHopTransforms
```
public List<TransformMeta> getPipelineHopTransforms(boolean all)
```
    Gets a List of all the transforms that are used in at least one active hop. These transforms will be used to execute the pipeline. The others will not be executed.
    Update 3.0 : we also add those transforms that are not linked to another hop, but have at least one remote input or output transform defined.
    
    Parameters:
    
    all - true if you want to get ALL the transforms from the pipeline, false otherwise
    
    Returns:
    
    A List of transforms
  - isTransformUsedInPipelineHops
```
public boolean isTransformUsedInPipelineHops(TransformMeta transformMeta)
```
    Checks if a transform has been used in a hop or not.
    
    Parameters:
    
    transformMeta - The transform queried.
    
    Returns:
    
    true if a transform is used in a hop (active or not), false otherwise
  - isAnySelectedTransformUsedInPipelineHops
```
public boolean isAnySelectedTransformUsedInPipelineHops()
```
    Checks if any selected transform has been used in a hop or not.
    
    Returns:
    
    true if a transform is used in a hop (active or not), false otherwise
  - clearChanged
```
public void clearChanged()
```
    Clears the different changed flags of the pipeline.
    
    Specified by:
    
    clearChanged in interface IChanged
    
    Specified by:
    
    clearChanged in interface IEngineMeta
    
    Overrides:
    
    clearChanged in class AbstractMeta
  - haveTransformsChanged
```
public boolean haveTransformsChanged()
```
    Checks whether or not the transforms have changed.
    
    Returns:
    
    true if the transforms have been changed, false otherwise
  - haveHopsChanged
```
public boolean haveHopsChanged()
```
    Checks whether or not any of the hops have been changed.
    
    Returns:
    
    true if a hop has been changed, false otherwise
  - hasChanged
```
public boolean hasChanged()
```
    Checks whether or not the pipeline has changed.
    
    Specified by:
    
    hasChanged in interface IChanged
    
    Overrides:
    
    hasChanged in class AbstractMeta
    
    Returns:
    
    true if the pipeline has changed, false otherwise
  - hasLoop
```
public boolean hasLoop(TransformMeta transformMeta)
```
    See if there are any loops in the pipeline, starting at the indicated transform. This works by looking at all the previous transforms. If you keep going backward and find the transform, there is a loop. Both the informational and the normal transforms need to be checked for loops!
    
    Parameters:
    
    transformMeta - The transform position to start looking
    
    Returns:
    
    true if a loop has been found, false if no loop is found.
  - hasLoop
```
public boolean hasLoop(TransformMeta transformMeta,
                       TransformMeta lookup)
```
    Checks for loop.
    
    Parameters:
    
    transformMeta - the transformmeta
    
    lookup - the lookup
    
    Returns:
    
    true, if successful
  - selectAll
```
public void selectAll()
```
    Mark all transforms in the pipeline as selected.
  - unselectAll
```
public void unselectAll()
```
    Clear the selection of all transforms.
  - getSelectedTransformLocations
```
public Point[] getSelectedTransformLocations()
```
    Get an array of all the selected transform locations.
    
    Returns:
    
    The selected transform locations.
  - getSelectedNoteLocations
```
public Point[] getSelectedNoteLocations()
```
    Get an array of all the selected note locations.
    
    Returns:
    
    The selected note locations.
  - getSelectedTransforms
```
public List<TransformMeta> getSelectedTransforms()
```
    Gets a list of the selected transforms.
    
    Returns:
    
    A list of all the selected transforms.
  - getSelectedTransformNames
```
public String[] getSelectedTransformNames()
```
    Gets an array of all the selected transform names.
    
    Returns:
    
    An array of all the selected transform names.
  - getTransformIndexes
```
public int[] getTransformIndexes(List<TransformMeta> transforms)
```
    Gets an array of the locations of an array of transforms.
    
    Parameters:
    
    transforms - An array of transforms
    
    Returns:
    
    an array of the locations of an array of transforms
  - getMaximum
```
public Point getMaximum()
```
    Gets the maximum size of the canvas by calculating the maximum location of a transform.
    
    Returns:
    
    Maximum coordinate of a transform in the pipeline + (100,100) for safety.
  - getMinimum
```
public Point getMinimum()
```
    Gets the minimum point on the canvas of a pipeline.
    
    Returns:
    
    Minimum coordinate of a transform in the pipeline
  - getTransformNames
```
public String[] getTransformNames()
```
    Gets the names of all the transforms.
    
    Returns:
    
    An array of transform names.
  - getTransformsArray
```
public TransformMeta[] getTransformsArray()
```
    Gets all the transforms as an array.
    
    Returns:
    
    An array of all the transforms in the pipeline.
  - findPrevious
```
public boolean findPrevious(TransformMeta startTransform,
                            TransformMeta transformToFind)
```
    Looks in the pipeline to find a transform in a previous location starting somewhere.
    
    Parameters:
    
    startTransform - The starting transform
    
    transformToFind - The transform to look for backward in the pipeline
    
    Returns:
    
    true if we can find the transform in an earlier location in the pipeline.
  - sortTransforms
```
public void sortTransforms()
```
    Puts the transforms in alphabetical order.
  - sortHops
```
public void sortHops()
```
    Sorts all the hops in the pipeline.
  - sortTransformsNatural
```
public Map<TransformMeta,Map<TransformMeta,Boolean>> sortTransformsNatural()
```
    Puts the transforms in a more natural order: from start to finish. For the moment, we ignore splits and joins. Splits and joins can't be listed sequentially in any case!
    
    Returns:
    
    a map containing all the previous transforms per transform
  - sortHopsNatural
```
public void sortHopsNatural()
```
    Sorts the hops in a natural way: from beginning to end.
  - analyseImpact
```
public void analyseImpact(IVariables variables,
                          List<DatabaseImpact> impact,
                          IProgressMonitor monitor)
                   throws HopTransformException
```
    Determines the impact of the different transforms in a pipeline on databases, tables and field.
    
    Parameters:
    
    impact - An ArrayList of DatabaseImpact objects.
    
    monitor - a progress monitor listener to be updated as the pipeline is analyzed
    
    Throws:
    
    HopTransformException - if any errors occur during analysis
  - getAlternativeTransformName
```
public String getAlternativeTransformName(String transformName)
```
    Proposes an alternative transformName when the original already exists.
    
    Parameters:
    
    transformName - The transformName to find an alternative for
    
    Returns:
    
    The suggested alternative transformName.
  - getSqlStatements
```
public List<SqlStatement> getSqlStatements(IVariables variables)
                                    throws HopTransformException
```
    Builds a list of all the Sql statements that this pipeline needs in order to work properly.
    
    Parameters:
    
    variables - the variables to resolve variable expressions with
    
    Returns:
    
    An ArrayList of SqlStatement objects.
    
    Throws:
    
    HopTransformException - if any errors occur during Sql statement generation
  - getSqlStatements
```
public List<SqlStatement> getSqlStatements(IVariables variables,
                                           IProgressMonitor monitor)
                                    throws HopTransformException
```
    Builds a list of all the Sql statements that this pipeline needs in order to work properly.
    
    Parameters:
    
    variables - the variables to resolve variable expressions with
    
    monitor - a progress monitor listener to be updated as the Sql statements are generated
    
    Returns:
    
    An ArrayList of SqlStatement objects.
    
    Throws:
    
    HopTransformException - if any errors occur during Sql statement generation
  - getSqlStatementsString
```
public String getSqlStatementsString(IVariables variables)
                              throws HopTransformException
```
    Get the Sql statements (needed to run this pipeline) as a single String.
    
    Returns:
    
    the Sql statements needed to run this pipeline
    
    Throws:
    
    HopTransformException - if any errors occur during Sql statement generation
  - checkTransforms
```
public void checkTransforms(List<ICheckResult> remarks,
                            boolean onlySelected,
                            IProgressMonitor monitor,
                            IVariables variables,
                            IHopMetadataProvider metadataProvider)
```
    Checks all the transforms and fills a List of (CheckResult) remarks.
    
    Parameters:
    
    remarks - The remarks list to add to.
    
    onlySelected - true to check only the selected transforms, false for all transforms
    
    monitor - a progress monitor listener to be updated as the Sql statements are generated
  - getPipelineVersion
```
public String getPipelineVersion()
```
    Gets the version of the pipeline.
    
    Returns:
    
    The version of the pipeline
  - setPipelineVersion
```
public void setPipelineVersion(String pipelineVersion)
```
    Sets the version of the pipeline.
    
    Parameters:
    
    pipelineVersion - The new version description of the pipeline
  - setPipelineStatus
```
public void setPipelineStatus(int pipelineStatus)
```
    Sets the status of the pipeline.
    
    Parameters:
    
    pipelineStatus - The new status description of the pipeline
  - getPipelineStatus
```
public int getPipelineStatus()
```
    Gets the status of the pipeline.
    
    Returns:
    
    The status of the pipeline
  - toString
```
public String toString()
```
    Gets a textual representation of the pipeline. If its name has been set, it will be returned, otherwise the classname is returned.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    the textual representation of the pipeline.
  - cancelQueries
```
public void cancelQueries()
                   throws HopDatabaseException
```
    Cancels queries opened for checking & fieldprediction.
    
    Throws:
    
    HopDatabaseException - if any errors occur during query cancellation
  - getStringList
```
public List<StringSearchResult> getStringList(boolean searchTransforms,
                                              boolean searchDatabases,
                                              boolean searchNotes,
                                              boolean includePasswords)
```
    Gets a list of all the strings used in this pipeline. The parameters indicate which collections to search and which to exclude.
    
    Parameters:
    
    searchTransforms - true if transforms should be searched, false otherwise
    
    searchDatabases - true if databases should be searched, false otherwise
    
    searchNotes - true if notes should be searched, false otherwise
    
    includePasswords - true if passwords should be searched, false otherwise
    
    Returns:
    
    a list of search results for strings used in the pipeline.
  - getStringList
```
public List<StringSearchResult> getStringList(boolean searchTransforms,
                                              boolean searchDatabases,
                                              boolean searchNotes)
```
    Get a list of all the strings used in this pipeline. The parameters indicate which collections to search and which to exclude.
    
    Parameters:
    
    searchTransforms - true if transforms should be searched, false otherwise
    
    searchDatabases - true if databases should be searched, false otherwise
    
    searchNotes - true if notes should be searched, false otherwise
    
    Returns:
    
    a list of search results for strings used in the pipeline.
  - getUsedVariables
```
public List<String> getUsedVariables()
```
    Gets a list of the used variables in this pipeline.
    
    Returns:
    
    a list of the used variables in this pipeline.
  - checkRowMixingStatically
```
public void checkRowMixingStatically(IVariables variables,
                                     TransformMeta transformMeta,
                                     IProgressMonitor monitor)
                              throws HopRowException
```
    Check a transform to see if there are no multiple transforms to read from. If so, check to see if the receiving rows are all the same in layout. We only want to ONLY use the DbCache for this to prevent GUI stalls.
    
    Parameters:
    
    transformMeta - the transform to check
    
    monitor - the monitor
    
    Throws:
    
    HopRowException - in case we detect a row mixing violation
  - setInternalHopVariables
```
public void setInternalHopVariables(IVariables variables)
```
    Sets the internal hop variables.
    
    Specified by:
    
    setInternalHopVariables in interface IEngineMeta
    
    Specified by:
    
    setInternalHopVariables in class AbstractMeta
    
    Parameters:
    
    variables - the new internal hop variables
  - setInternalNameHopVariable
```
protected void setInternalNameHopVariable(IVariables variables)
```
    Sets the internal name hop variable.
    
    Specified by:
    
    setInternalNameHopVariable in class AbstractMeta
    
    Parameters:
    
    variables - the new internal name hop variable
  - setInternalFilenameHopVariables
```
protected void setInternalFilenameHopVariables(IVariables variables)
```
    Sets the internal filename hop variables.
    
    Specified by:
    
    setInternalFilenameHopVariables in class AbstractMeta
    
    Parameters:
    
    variables - the new internal filename hop variables
  - setInternalEntryCurrentDirectory
```
protected void setInternalEntryCurrentDirectory(IVariables variables)
```
  - findMappingInputTransform
```
public TransformMeta findMappingInputTransform(String transformName)
                                        throws HopTransformException
```
    Finds the mapping input transform with the specified name. If no mapping input transform is found, null is returned
    
    Parameters:
    
    transformName - the name to search for
    
    Returns:
    
    the transform meta-data corresponding to the desired mapping input transform, or null if no transform was found
    
    Throws:
    
    HopTransformException - if any errors occur during the search
  - findMappingOutputTransform
```
public TransformMeta findMappingOutputTransform(String transformName)
                                         throws HopTransformException
```
    Finds the mapping output transform with the specified name. If no mapping output transform is found, null is returned.
    
    Parameters:
    
    transformName - the name to search for
    
    Returns:
    
    the transform meta-data corresponding to the desired mapping input transform, or null if no transform was found
    
    Throws:
    
    HopTransformException - if any errors occur during the search
  - getResourceDependencies
```
public List<ResourceReference> getResourceDependencies(IVariables variables)
```
    Gets a list of the resource dependencies.
    
    Returns:
    
    a list of ResourceReferences
  - exportResources
```
public String exportResources(IVariables variables,
                              Map<String,ResourceDefinition> definitions,
                              IResourceNaming iResourceNaming,
                              IHopMetadataProvider metadataProvider)
                       throws HopException
```
    Exports the specified objects to a flat-file system, adding content with filename keys to a set of definitions. The supplied resource naming interface allows the object to name appropriately without worrying about those parts of the implementation specific details.
    
    Specified by:
    
    exportResources in interface IResourceExport
    
    Parameters:
    
    variables - the variable variables to use
    
    definitions -
    
    iResourceNaming -
    
    metadataProvider - the metadataProvider in which non-hop metadata could reside.
    
    Returns:
    
    the filename of the exported resource
    
    Throws:
    
    HopException - in case something goes wrong during the export
  - isCapturingTransformPerformanceSnapShots
```
public boolean isCapturingTransformPerformanceSnapShots()
```
    Checks whether the pipeline is capturing transform performance snapshots.
    
    Returns:
    
    true if the pipeline is capturing transform performance snapshots, false otherwise
  - setCapturingTransformPerformanceSnapShots
```
public void setCapturingTransformPerformanceSnapShots(boolean capturingTransformPerformanceSnapShots)
```
    Sets whether the pipeline is capturing transform performance snapshots.
    
    Parameters:
    
    capturingTransformPerformanceSnapShots - true if the pipeline is capturing transform performance snapshots, false otherwise
  - getTransformPerformanceCapturingDelay
```
public long getTransformPerformanceCapturingDelay()
```
    Gets the transform performance capturing delay.
    
    Returns:
    
    the transform performance capturing delay
  - setTransformPerformanceCapturingDelay
```
public void setTransformPerformanceCapturingDelay(long transformPerformanceCapturingDelay)
```
    Sets the transform performance capturing delay.
    
    Parameters:
    
    transformPerformanceCapturingDelay - the transformPerformanceCapturingDelay to set
  - getTransformPerformanceCapturingSizeLimit
```
public String getTransformPerformanceCapturingSizeLimit()
```
    Gets the transform performance capturing size limit.
    
    Returns:
    
    the transform performance capturing size limit
  - setTransformPerformanceCapturingSizeLimit
```
public void setTransformPerformanceCapturingSizeLimit(String transformPerformanceCapturingSizeLimit)
```
    Sets the transform performance capturing size limit.
    
    Parameters:
    
    transformPerformanceCapturingSizeLimit - the transform performance capturing size limit to set
  - clearCaches
```
public void clearCaches()
```
    Clears the transform fields and loop caches.
  - getPipelineType
```
public PipelineMeta.PipelineType getPipelineType()
```
    Gets the pipeline type.
    
    Returns:
    
    the pipelineType
  - setPipelineType
```
public void setPipelineType(PipelineMeta.PipelineType pipelineType)
```
    Sets the pipeline type.
    
    Parameters:
    
    pipelineType - the pipelineType to set
  - addTransformChangeListener
```
public void addTransformChangeListener(ITransformMetaChangeListener listener)
```
  - addTransformChangeListener
```
public void addTransformChangeListener(int p,
                                       ITransformMetaChangeListener list)
```
  - removeTransformChangeListener
```
public void removeTransformChangeListener(ITransformMetaChangeListener list)
```
  - notifyAllListeners
```
public void notifyAllListeners(TransformMeta oldMeta,
                               TransformMeta newMeta)
```
  - containsTransformMeta
```
public boolean containsTransformMeta(TransformMeta transformMeta)
```
  - getMissingPipeline
```
public List<Missing> getMissingPipeline()
```
  - addMissingPipeline
```
public void addMissingPipeline(Missing pipeline)
```
  - removeMissingPipeline
```
public void removeMissingPipeline(Missing pipeline)
```
  - hasMissingPlugins
```
public boolean hasMissingPlugins()
```
    Overrides:
    
    hasMissingPlugins in class AbstractMeta
  - isEmpty
```
public boolean isEmpty()
```
  - setTransforms
```
public void setTransforms(List<TransformMeta> transforms)
```
    Sets transforms
    
    Parameters:
    
    transforms - value of transforms
  - getHops
```
public List<PipelineHopMeta> getHops()
```
    Gets hops
    
    Returns:
    
    value of hops
  - setHops
```
public void setHops(List<PipelineHopMeta> hops)
```
    Sets hops
    
    Parameters:
    
    hops - value of hops
  - getInfo
```
public PipelineMetaInfo getInfo()
```
    Gets info
    
    Returns:
    
    value of info
  - setInfo
```
public void setInfo(PipelineMetaInfo info)
```
    Sets info
    
    Parameters:
    
    info - value of info
  - getName
```
public String getName()
```
    Get the name of the pipeline. If the name is synchronized with the filename, we return the base filename.
    
    Specified by:
    
    getName in interface IEngineMeta
    
    Specified by:
    
    getName in class AbstractMeta
    
    Returns:
    
    The name of the pipeline
  - setName
```
public void setName(String newName)
```
    Set the name.
    
    Specified by:
    
    setName in interface IEngineMeta
    
    Specified by:
    
    setName in class AbstractMeta
    
    Parameters:
    
    newName - The new name
  - isNameSynchronizedWithFilename
```
public boolean isNameSynchronizedWithFilename()
```
    Specified by:
    
    isNameSynchronizedWithFilename in interface IEngineMeta
    
    Specified by:
    
    isNameSynchronizedWithFilename in class AbstractMeta
    
    Returns:
    
    true if the name is derived from the filename
  - setNameSynchronizedWithFilename
```
public void setNameSynchronizedWithFilename(boolean nameSynchronizedWithFilename)
```
    Specified by:
    
    setNameSynchronizedWithFilename in interface IEngineMeta
    
    Specified by:
    
    setNameSynchronizedWithFilename in class AbstractMeta
    
    Parameters:
    
    nameSynchronizedWithFilename - Set to true if the name is derived from the filename
  - getDescription
```
public String getDescription()
```
    Gets the description of the workflow.
    
    Specified by:
    
    getDescription in class AbstractMeta
    
    Returns:
    
    The description of the workflow
  - setDescription
```
public void setDescription(String description)
```
    Set the description of the workflow.
    
    Specified by:
    
    setDescription in class AbstractMeta
    
    Parameters:
    
    description - The new description of the workflow
  - getExtendedDescription
```
public String getExtendedDescription()
```
    Gets the extended description of the workflow.
    
    Specified by:
    
    getExtendedDescription in class AbstractMeta
    
    Returns:
    
    The extended description of the workflow
  - setExtendedDescription
```
public void setExtendedDescription(String extendedDescription)
```
    Set the description of the workflow.
    
    Specified by:
    
    setExtendedDescription in class AbstractMeta
    
    Parameters:
    
    extendedDescription - The new extended description of the workflow
  - getCreatedDate
```
public Date getCreatedDate()
```
    Gets the date the pipeline was created.
    
    Specified by:
    
    getCreatedDate in interface IEngineMeta
    
    Specified by:
    
    getCreatedDate in class AbstractMeta
    
    Returns:
    
    the date the pipeline was created.
  - setCreatedDate
```
public void setCreatedDate(Date createdDate)
```
    Sets the date the pipeline was created.
    
    Specified by:
    
    setCreatedDate in interface IEngineMeta
    
    Specified by:
    
    setCreatedDate in class AbstractMeta
    
    Parameters:
    
    createdDate - The creation date to set.
  - setCreatedUser
```
public void setCreatedUser(String createdUser)
```
    Sets the user by whom the pipeline was created.
    
    Specified by:
    
    setCreatedUser in interface IEngineMeta
    
    Specified by:
    
    setCreatedUser in class AbstractMeta
    
    Parameters:
    
    createdUser - The user to set.
  - getCreatedUser
```
public String getCreatedUser()
```
    Gets the user by whom the pipeline was created.
    
    Specified by:
    
    getCreatedUser in interface IEngineMeta
    
    Specified by:
    
    getCreatedUser in class AbstractMeta
    
    Returns:
    
    the user by whom the pipeline was created.
  - setModifiedDate
```
public void setModifiedDate(Date modifiedDate)
```
    Sets the date the pipeline was modified.
    
    Specified by:
    
    setModifiedDate in interface IEngineMeta
    
    Specified by:
    
    setModifiedDate in class AbstractMeta
    
    Parameters:
    
    modifiedDate - The modified date to set.
  - getModifiedDate
```
public Date getModifiedDate()
```
    Gets the date the pipeline was modified.
    
    Specified by:
    
    getModifiedDate in interface IEngineMeta
    
    Specified by:
    
    getModifiedDate in class AbstractMeta
    
    Returns:
    
    the date the pipeline was modified.
  - setModifiedUser
```
public void setModifiedUser(String modifiedUser)
```
    Sets the user who last modified the pipeline.
    
    Specified by:
    
    setModifiedUser in interface IEngineMeta
    
    Specified by:
    
    setModifiedUser in class AbstractMeta
    
    Parameters:
    
    modifiedUser - The user name to set.
  - getModifiedUser
```
public String getModifiedUser()
```
    Gets the user who last modified the pipeline.
    
    Specified by:
    
    getModifiedUser in interface IEngineMeta
    
    Specified by:
    
    getModifiedUser in class AbstractMeta
    
    Returns:
    
    the user who last modified the pipeline.

Class PipelineMeta

Nested Class Summary

Field Summary

Fields inherited from class org.apache.hop.base.AbstractMeta

Constructor Summary

Method Summary

Methods inherited from class org.apache.hop.base.AbstractMeta

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Comparator

Methods inherited from interface org.apache.hop.core.file.IHasFilename

Field Detail

PIPELINE_EXTENSION

XML_TAG

BORDER_INDENT

info

transforms

hops

pipelineStatus

changedTransforms

changedHops

previousResult

transformFieldsCache

loopCache

previousTransformCache

transformChangeListeners

descTypeUndo

XML_TAG_INFO

XML_TAG_ORDER

XML_TAG_NOTEPADS

XML_TAG_PARAMETERS

XML_TAG_TRANSFORM_ERROR_HANDLING

Constructor Detail

PipelineMeta

PipelineMeta

PipelineMeta

PipelineMeta

Method Detail

compare

compareTo

equals

clone

realClone

getExtension

clear

addTransform

addOrReplaceTransform

addPipelineHop

addTransform

addPipelineHop

getTransforms

getTransform

getPipelineHops

getPipelineHop

removeTransform

removePipelineHop

removePipelineHop

nrTransforms

nrPipelineHops

nrTransformChangeListeners

setTransform

setPipelineHop

getUsedTransforms

findTransform

findTransform

findPipelineHop

findPipelineHopFrom

findAllPipelineHopFrom

findPipelineHop

findPipelineHop

findPipelineHop

findPipelineHopTo

isTransformInformative

findPreviousTransforms

findPreviousTransforms

getInfoTransform

findNrInfoTransforms

getPrevInfoFields

getPrevInfoFields

getPrevTransforms

getPrevTransformNames