Package org.apache.jackrabbit.commons

Class AbstractNode

java.lang.Object

org.apache.jackrabbit.commons.AbstractItem

org.apache.jackrabbit.commons.AbstractNode

All Implemented Interfaces:

Item, Node

public abstract class AbstractNode
extends AbstractItem
implements Node

Abstract base class for implementing the JCR Node interface.

Item methods without a default implementation:

• Item.accept(javax.jcr.ItemVisitor)
• Item.getName()
• Item.getParent()
• Item.getSession()
• Item.isModified()
• Item.isNew()
• Item.isSame(Item)
• Item.refresh(boolean)
• Item.remove()
• Item.save()

Node methods without a default implementation:

• Node.addMixin(String)
• Node.addNode(String)
• Node.addNode(String, String)
• Node.canAddMixin(String)
• Node.cancelMerge(Version)
• Node.checkin()
• Node.checkout()
• Node.doneMerge(Version)
• Node.getBaseVersion()
• Node.getCorrespondingNodePath(String)
• Node.getDefinition()
• Node.getIndex()
• Node.getLock()
• Node.getNode(String)
• Node.getNodes()
• Node.getNodes(String)
• Node.getPrimaryItem()
• Node.getProperties()
• Node.getProperties(String)
• Node.getReferences()
• Node.lock(boolean, boolean)
• Node.merge(String, boolean)
• Node.orderBefore(String, String)
• Node.removeMixin(String)
• Node.restore(Version, String, boolean)
• Node.setProperty(String, Value)
• Node.setProperty(String, Value[])
• Node.unlock()
• Node.update(String)

Field Summary

Fields inherited from interface javax.jcr.Node

JCR_CHILD_NODE_DEFINITION, JCR_CONTENT, JCR_FROZEN_NODE, JCR_PROPERTY_DEFINITION, JCR_ROOT_VERSION, JCR_VERSION_LABELS

Constructor Summary

Constructors

Constructor	Description
AbstractNode()

Method Summary

Modifier and Type	Method	Description
void	accept(ItemVisitor visitor)	Accepts the given item visitor.
NodeType[]	getMixinNodeTypes()	Returns the declared mixin node types of this node.
String	getPath()	Returns the path of this node.
NodeType	getPrimaryNodeType()	Returns the primary node type of this node.
Property	getProperty(String relPath)	Returns the property at the given relative path from this node.
String	getUUID()	Returns the UUID of this node.
VersionHistory	getVersionHistory()	Returns the version history of this node.
boolean	hasNode(String relPath)	Checks whether a node at the given relative path exists.
boolean	hasNodes()	Checks if this node has one or more properties.
boolean	hasProperties()	Checks if this node has one or more properties.
boolean	hasProperty(String relPath)	Checks whether a property at the given relative path exists.
boolean	holdsLock()	Checks if this node holds a lock.
boolean	isCheckedOut()	Checks whether this node is checked out.
boolean	isLocked()	Checks if this node is locked.
boolean	isNode()	Returns true.
boolean	isNodeType(String name)	Checks whether this node is of the given type.
void	restore(String versionName, boolean removeExisting)	Restores this node to the version with the given name.
void	restore(Version version, boolean removeExisting)	Restores this node to the given version.
void	restoreByLabel(String versionLabel, boolean removeExisting)	Restores this node to the version with the given label.
Property	setProperty(String name, boolean value)	Sets the value of the named property.
Property	setProperty(String name, double value)	Sets the value of the named property.
Property	setProperty(String name, long value)	Sets the value of the named property.
Property	setProperty(String name, InputStream value)	Sets the value of the named property.
Property	setProperty(String name, String value)	Sets the value of the named property.
Property	setProperty(String name, String[] strings)	Sets the value of the named property.
Property	setProperty(String name, String[] strings, int type)	Sets the value of the named property.
Property	setProperty(String name, String value, int type)	Sets the value of the named property.
Property	setProperty(String name, Calendar value)	Sets the value of the named property.
Property	setProperty(String name, Node value)	Sets the value of the named property.
Property	setProperty(String name, Value[] values, int type)	Sets the value of the named property.
Property	setProperty(String name, Value value, int type)	Sets the value of the named property.

Methods inherited from class org.apache.jackrabbit.commons.AbstractItem

getAncestor, getDepth, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface javax.jcr.Item

getAncestor, getDepth, getName, getParent, getSession, isModified, isNew, isSame, refresh, remove, save

Methods inherited from interface javax.jcr.Node

addMixin, addNode, addNode, canAddMixin, cancelMerge, checkin, checkout, doneMerge, followLifecycleTransition, getAllowedLifecycleTransistions, getBaseVersion, getCorrespondingNodePath, getDefinition, getIdentifier, getIndex, getLock, getNode, getNodes, getNodes, getNodes, getPrimaryItem, getProperties, getProperties, getProperties, getReferences, getReferences, getSharedSet, getWeakReferences, getWeakReferences, lock, merge, orderBefore, removeMixin, removeShare, removeSharedSet, restore, setPrimaryType, setProperty, setProperty, setProperty, setProperty, unlock, update

Constructor Details

AbstractNode

public AbstractNode()

Method Details

accept

public void accept(ItemVisitor visitor)
            throws RepositoryException

Accepts the given item visitor.

The default implementation calls ItemVisitor.visit(Node) on the given visitor with this node as the argument.

Specified by:

accept in interface Item

Parameters:

visitor - item visitor

Throws:

RepositoryException - if an error occurs

getPath

public String getPath()
               throws RepositoryException

Returns the path of this node.

The default implementation recursively calls this method on the parent node and appends the name and optionally the index of this node to construct the full path. Returns "/" if the parent node is not available (i.e. this is the root node).

Specified by:

getPath in interface Item

Returns:

node path

Throws:

RepositoryException - if an error occurs

isNode

public boolean isNode()

Returns true.

Specified by:

isNode in interface Item

Returns:

true

getMixinNodeTypes

public NodeType[] getMixinNodeTypes()
                             throws RepositoryException

Returns the declared mixin node types of this node.

The default implementation uses the values of the jcr:mixinTypes property to look up the mixin node types from the NodeTypeManager of the current workspace.

Specified by:

getMixinNodeTypes in interface Node

Returns:

mixin node types

Throws:

RepositoryException - if an error occurs

getPrimaryNodeType

public NodeType getPrimaryNodeType()
                            throws RepositoryException

Returns the primary node type of this node.

The default implementation uses the value of the jcr:primaryType property to look up the primary node type from the NodeTypeManager of the current workspace.

Specified by:

getPrimaryNodeType in interface Node

Returns:

primary node type

Throws:

RepositoryException - if an error occurs

getProperty

public Property getProperty(String relPath)
                     throws PathNotFoundException,
RepositoryException

Returns the property at the given relative path from this node.

The default implementation looks up the parent node of the given relative path and iterates through the properties of that node to find and return the identified property.

Specified by:

getProperty in interface Node

Parameters:

relPath - relative path of the property

Returns:

property

Throws:

PathNotFoundException - if the property is not found

RepositoryException - if an error occurs

getUUID

public String getUUID()
               throws UnsupportedRepositoryOperationException,
RepositoryException

Returns the UUID of this node.

The default implementation checks if this node is referenceable (i.e. of type mix:referenceable) and returns the contents of the jcr:uuid property if it is.

Specified by:

getUUID in interface Node

Returns:

node UUID

Throws:

UnsupportedRepositoryOperationException - if this node is not referenceable

RepositoryException - if an error occurs

getVersionHistory

public VersionHistory getVersionHistory()
                                 throws RepositoryException

Returns the version history of this node.

The default implementation returns the containing version history of the base version of this node.

Specified by:

getVersionHistory in interface Node

Returns:

version history

Throws:

RepositoryException - if an error occurs

hasNode

public boolean hasNode(String relPath)
                throws RepositoryException

Checks whether a node at the given relative path exists.

The default implementation looks up the node using Node.getNode(String) and returns true if a PathNotFoundException is not thrown.

Specified by:

hasNode in interface Node

Parameters:

relPath - relative path

Returns:

true if a node exists at the given path, false otherwise

Throws:

RepositoryException - if an error occurs

hasNodes

public boolean hasNodes()
                 throws RepositoryException

Checks if this node has one or more properties.

The default implementation calls Node.getNodes() and returns true iff returned iterator has at least one element.

Specified by:

hasNodes in interface Node

Returns:

true if this node has child nodes, false otherwise

Throws:

RepositoryException - if an error occurs

hasProperties

public boolean hasProperties()
                      throws RepositoryException

Checks if this node has one or more properties.

The default implementation calls Node.getProperties() and returns true iff returned iterator has at least one element.

Note that in normal circumstances (i.e. no weird access controls) this method will always return true since all nodes always have at least the jcr:primaryType property.

Specified by:

hasProperties in interface Node

Returns:

true if this node has properties, false otherwise

Throws:

RepositoryException - if an error occurs

hasProperty

public boolean hasProperty(String relPath)
                    throws RepositoryException

Checks whether a property at the given relative path exists.

The default implementation looks up the property using Node.getProperty(String) and returns true if a PathNotFoundException is not thrown.

Specified by:

hasProperty in interface Node

Parameters:

relPath - relative path

Returns:

true if a property exists at the given path, false otherwise

Throws:

RepositoryException - if an error occurs

holdsLock

public boolean holdsLock()
                  throws RepositoryException

Checks if this node holds a lock.

The default implementation calls Node.getLock() and returns true iff the holding node of the lock is the same as this node.

Specified by:

holdsLock in interface Node

Returns:

true if this node holds a lock, false otherwise

Throws:

RepositoryException - if an error occurs

isCheckedOut

public boolean isCheckedOut()
                     throws RepositoryException

Checks whether this node is checked out.

The default implementation checks the jcr:isCheckedOut property if this node is versionable, and recursively calls this method on the parent node if this node is not versionable. A non-versionable root node always returns true from this method.

Specified by:

isCheckedOut in interface Node

Returns:

true if this node is checked out, false otherwise

Throws:

RepositoryException - if an error occurs

isLocked

public boolean isLocked()
                 throws RepositoryException

Checks if this node is locked.

The default implementation calls Node.getLock() and returns true iff a LockException is not thrown.

Specified by:

isLocked in interface Node

Returns:

true if this node is locked, false otherwise

Throws:

RepositoryException - if an error occurs

isNodeType

public boolean isNodeType(String name)
                   throws RepositoryException

Checks whether this node is of the given type.

The default implementation iterates through the primary and mixin types and all the supertypes of this node, returning true if a type with the given name is encountered. Returns false if none of the types matches.

Specified by:

isNodeType in interface Node

Parameters:

name - type name

Returns:

true if this node is of the given type, false otherwise

Throws:

RepositoryException - if an error occurs

restore

public void restore(String versionName,
 boolean removeExisting)
             throws RepositoryException

Restores this node to the version with the given name.

The default implement retrieves the named Version from the associated VersionHistory and forwards the call to the Node.restore(Version, boolean) method.

Specified by:

restore in interface Node

Parameters:

versionName - version name

removeExisting - passed through

Throws:

RepositoryException - if an error occurs

restore

public void restore(Version version,
 boolean removeExisting)
             throws RepositoryException

Restores this node to the given version.

The default implementation forwards the call to the Node.restore(Version, String, boolean) method using the relative path ".".

Specified by:

restore in interface Node

Parameters:

version - passed through

removeExisting - passed through

Throws:

RepositoryException - if an error occurs

restoreByLabel

public void restoreByLabel(String versionLabel,
 boolean removeExisting)
                    throws RepositoryException

Restores this node to the version with the given label.

The default implement retrieves the labeled Version from the associated VersionHistory and forwards the call to the Node.restore(Version, boolean) method.

Specified by:

restoreByLabel in interface Node

Parameters:

versionLabel - version label

removeExisting - passed through

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 String[] strings)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instances from the given string values and forwards the call to the Node.setProperty(String, Value[]) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

strings - string values

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 String value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given string value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - string value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 InputStream value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given binary value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - binary value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 boolean value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given boolean value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - boolean value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 double value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given double value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - double value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 long value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given long value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - long value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 Calendar value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given date value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - date value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 Node value)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance from the given reference value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - reference value

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 Value value,
 int type)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to convert the given value to the given type and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - property value

type - property type

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 Value[] values,
 int type)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to convert the given values to the given type and forwards the call to the Node.setProperty(String, Value[]) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

values - property values

type - property type

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 String[] strings,
 int type)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create Value instances of the given type from the given string values and forwards the call to the Node.setProperty(String, Value[]) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

strings - string values

type - property type

Returns:

modified property

Throws:

RepositoryException - if an error occurs

setProperty

public Property setProperty(String name,
 String value,
 int type)
                     throws RepositoryException

Sets the value of the named property.

The default implementation uses the ValueFactory of the current Session to create a Value instance of the given type from the given string value and forwards the call to the Node.setProperty(String, Value) method.

Specified by:

setProperty in interface Node

Parameters:

name - property name

value - string value

type - property type

Returns:

modified property

Throws:

RepositoryException - if an error occurs