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## org.apache.xalan.transformer
Class KeyRefIterator

    java.lang.Object
      |
      +--org.apache.xpath.Expression
            |
            +--org.apache.xpath.patterns.NodeTest
                  |
                  +--org.apache.xpath.axes.PredicatedNodeTest
                        |
                        +--org.apache.xpath.axes.LocPathIterator
                              |
                              +--org.apache.xpath.axes.BasicTestIterator
                                    |
                                    +--org.apache.xpath.axes.ChildTestIterator
                                          |
                                          +--org.apache.xalan.transformer.KeyRefIterator

public class KeyRefIterator
extends ChildTestIterator

This class filters nodes from a key iterator, according to whether or not the use value matches the ref value.

See Also:
  Serialized Form
Usage:
  **For internal use only**

Fields inherited from class org.apache.xpath.axes.LocPathIterator
`m_lastFetched`

Fields inherited from class org.apache.xpath.patterns.NodeTest
`SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, SUPPORTS_PRE_STRIPPING, WILD`

Constructor Summary
`KeyRefIterator(QName name, XMLString ref, java.util.Vector keyDecls, DTMIterator ki)` Constructor KeyRefIterator

Method Summary
`short` | `filterNode(int testNode)` Test whether a specified node is visible in the logical view of a TreeWalker or NodeIterator.

Methods inherited from class org.apache.xpath.axes.ChildTestIterator
`cloneWithReset, detach, getAxis, setRoot`

Methods inherited from class org.apache.xpath.axes.BasicTestIterator
`nextNode`

Methods inherited from class org.apache.xpath.axes.LocPathIterator
`allowDetachToRelease, asIterator, asNode, bool, callVisitors, execute, executeCharsToContentHandler, getAnalysisBits, getContext, getCurrentContextNode, getCurrentNode, getCurrentPos, getDTM, getDTMManager, getExpandEntityReferences, getFilter, getFoundLast, getIsTopLevel, getLastPos, getLength, getPrefixResolver, getRoot, getWhatToShow, getXPathContext, incrementCurrentPos, isDocOrdered, isFresh, isMutable, isNodesetExpr, item, previousNode, reset, runTo, setCurrentContextNode, setCurrentPos, setEnvironment, setIsTopLevel, setItem, setShouldCacheNodes, size`

Methods inherited from class org.apache.xpath.axes.PredicatedNodeTest
`acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, clone, deepEquals, fixupVariables, getLocPathIterator, getPredicate, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, isReverseAxes, resetProximityPositions, setLocPathIterator, setPredicateCount`

Methods inherited from class org.apache.xpath.patterns.NodeTest
`debugWhatToShow, execute, execute, getDefaultScore, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow`

Methods inherited from class org.apache.xpath.Expression
`asIteratorRaw, assertion, error, execute, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isStableNumber, num, warn, xstr`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### KeyRefIterator

    public KeyRefIterator(QName name,
                          XMLString ref,
                          java.util.Vector keyDecls,
                          DTMIterator ki)

  Constructor KeyRefIterator
  Parameters:
    `ref` - Key value to match
    `ki` - The main key iterator used to walk the source tree

Method Detail

### filterNode

    public short filterNode(int testNode)

  Test whether a specified node is visible in the logical view of a TreeWalker or NodeIterator. This function will be called by the implementation of TreeWalker and NodeIterator; it is not intended to be called directly from user code.
  Parameters:
    `testNode` - The node to check to see if it passes the filter or not.
  Returns:
    a constant to determine whether the node is accepted, rejected, or skipped, as defined above .

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Copyright © 2006 Apache XML Project. All Rights Reserved.