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## org.apache.xalan.transformer
Interface TransformState

All Known Implementing Classes:
  XalanTransformState

public interface TransformState
extends TransformStateSetter

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. It is primarily intended as a tooling interface. A content handler can get a reference to a TransformState by implementing the TransformerClient interface. Xalan will check for that interface before it calls startDocument, and, if it is implemented, pass in a TransformState reference to the setTransformState method.

Note that the current stylesheet and root stylesheet can be retrieved from the ElemTemplateElement obtained from either getCurrentElement() or getCurrentTemplate().

This interface contains only getter methods, any setters are in the interface TransformStateSetter which this interface extends.

See Also:
  `TransformStateSetter`

Method Summary
`NodeIterator` | `getContextNodeList()` Get the current context node list.
`ElemTemplateElement` | `getCurrentElement()` Retrieves the stylesheet element that produced the SAX event.
`Node` | `getCurrentNode()` This method retrieves the current context node in the source tree.
`ElemTemplate` | `getCurrentTemplate()` This method retrieves the xsl:template that is in effect, which may be a matched template or a named template.
`Node` | `getMatchedNode()` Retrieves the node in the source tree that matched the template obtained via getMatchedTemplate().
`ElemTemplate` | `getMatchedTemplate()` This method retrieves the xsl:template that was matched.
`Transformer` | `getTransformer()` Get the TrAX Transformer object in effect.

Methods inherited from interface org.apache.xml.serializer.TransformStateSetter
`resetState, setCurrentNode`

Method Detail

### getCurrentElement

    public ElemTemplateElement getCurrentElement()

  Retrieves the stylesheet element that produced the SAX event.

  Please note that the ElemTemplateElement returned may be in a default template, and thus may not be defined in the stylesheet.

  Returns:
    the stylesheet element that produced the SAX event.

### getCurrentNode

    public Node getCurrentNode()

  This method retrieves the current context node in the source tree.
  Returns:
    the current context node in the source tree.

### getCurrentTemplate

    public ElemTemplate getCurrentTemplate()

  This method retrieves the xsl:template that is in effect, which may be a matched template or a named template.

  Please note that the ElemTemplate returned may be a default template, and thus may not have a template defined in the stylesheet.

  Returns:
    the xsl:template that is in effect

### getMatchedTemplate

    public ElemTemplate getMatchedTemplate()

  This method retrieves the xsl:template that was matched. Note that this may not be the same thing as the current template (which may be from getCurrentElement()), since a named template may be in effect.

  Please note that the ElemTemplate returned may be a default template, and thus may not have a template defined in the stylesheet.

  Returns:
    the xsl:template that was matched.

### getMatchedNode

    public Node getMatchedNode()

  Retrieves the node in the source tree that matched the template obtained via getMatchedTemplate().
  Returns:
    the node in the source tree that matched the template obtained via getMatchedTemplate().

### getContextNodeList

    public NodeIterator getContextNodeList()

  Get the current context node list.
  Returns:
    the current context node list.

### getTransformer

    public Transformer getTransformer()

  Get the TrAX Transformer object in effect.
  Returns:
    the TrAX Transformer object in effect.

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