Package org.apache.xalan.transformer

In charge of run-time transformations and the production of result trees.

TransformerImpl implements the Transformer interface, and is the core representation of the transformation execution.

For each node in the XML source, TransformerImpl uses the StylesheetRoot and underlying XSLT schema to determine which template to apply: one of the templates in the StylesheetRoot, a default template rule as specified in the XSLT spec, or none.

The Transformer works with SerializationHandler to forward the SAX-like events produced by the transformation to the appropriate output ContentHandler.

To the degree possible, the parsing of the XML source and application of the Templates object to that source are performed concurrently in separate threads. When necessary, the Transformer waits for the parse events that must be in place before a given template may be applied.

  • Interface Summary
    Interface Description
    TransformerClient
    A content handler can get a reference to a TransformState by implementing the TransformerClient interface.
    TransformState
    This interface is meant to be used by a consumer of SAX2 events produced by Xalan, and enables the consumer to get information about the state of the transform.
  • Class Summary
    Class Description
    ClonerToResultTree
    Class used to clone a node, possibly including its children to a result tree.
    Counter
    A class that does incremental counting for support of xsl:number.
    CountersTable
    This is a table of counters, keyed by ElemNumber objects, each of which has a list of Counter objects.
    DecimalToRoman
    Structure to help in converting integers to roman numerals
    KeyIterator
    This class implements an optimized iterator for "key()" patterns, matching each node to the match attribute in one or more xsl:key declarations.
    KeyManager
    This class manages the key tables.
    KeyTable
    Table of element keys, keyed by document node.
    MsgMgr
    This class will manage error messages, warning messages, and other types of message events.
    NodeSorter
    This class can sort vectors of DOM nodes according to a select pattern.
    SerializerSwitcher
    This is a helper class that decides if Xalan needs to switch serializers, based on the first output element.
    TransformerHandlerImpl
    A TransformerHandler listens for SAX ContentHandler parse events and transforms them to a Result.
    TransformerIdentityImpl
    This class implements an identity transformer for SAXTransformerFactory.newTransformerHandler() and TransformerFactory.newTransformer().
    TransformerImpl
    This class implements the Transformer interface, and is the core representation of the transformation execution.
    TrAXFilter  
    TreeWalker2Result
    Handle a walk of a tree, but screen out attributes for the result tree.
    XalanProperties
    XalanProperties defines the features understood by Xalan.
    XalanTransformState
    Before the serializer merge, the TransformState interface was implemented by ResultTreeHandler.