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## weblogic.apache.xpath.axes
Class ChildTestIterator

    java.lang.Object
      |
      +--weblogic.apache.xpath.Expression
            |
            +--weblogic.apache.xpath.patterns.NodeTest
                  |
                  +--weblogic.apache.xpath.axes.PredicatedNodeTest
                        |
                        +--weblogic.apache.xpath.axes.LocPathIterator
                              |
                              +--weblogic.apache.xpath.axes.ChildTestIterator

Direct Known Subclasses:
  AttributeIterator, OneStepIterator, OneStepIteratorForward

public class ChildTestIterator
extends LocPathIterator

This class implements an optimized iterator for children patterns that have a node test, and possibly a predicate.

This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.

See Also:
  `WalkerFactory.newDTMIterator(weblogic.apache.xpath.compiler.Compiler, int, boolean)`, Serialized Form

Field Summary
`protected weblogic.apache.xml.dtm.DTMAxisTraverser` | `m_traverser` The traverser to use to navigate over the descendants.

Fields inherited from class weblogic.apache.xpath.axes.LocPathIterator
`m_cdtm, m_clones, m_context, m_currentContextNode, m_execContext, m_last, m_lastFetched, m_next, m_prefixResolver`

Fields inherited from class weblogic.apache.xpath.axes.PredicatedNodeTest
`m_foundLast, m_lpi, m_predCount, m_proximityPositions`

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

Fields inherited from class weblogic.apache.xpath.Expression
`m_slocator`

Method Summary
`weblogic.apache.xml.dtm.DTMIterator` | `cloneWithReset()` Get a cloned Iterator that is reset to the beginning of the query.
`int` | `getAxis()` Returns the axis being iterated, if it is known.
`protected int` | `getNextNode()` Get the next node via getNextXXX.
`int` | `nextNode()` Returns the next node in the set and advances the position of the iterator in the set.
`void` | `setRoot(int context, java.lang.Object environment)` Initialize the context values for this expression after it is cloned.

Methods inherited from class weblogic.apache.xpath.axes.LocPathIterator
`allowDetachToRelease, asIterator, asNode, bool, detach, execute, findLastPos, getCachedNodes, getContext, getCurrentContextNode, getCurrentNode, getCurrentPos, getDTM, getDTMManager, getExpandEntityReferences, getFilter, getFoundLast, getIsTopLevel, getLast, getLastPos, getLength, getPrefixResolver, getRoot, getWhatToShow, getXPathContext, isDocOrdered, isFresh, isMutable, isNodesetExpr, item, previousNode, reset, returnNextNode, runTo, setCurrentContextNode, setCurrentPos, setEnvironment, setIsTopLevel, setItem, setLast, setNextPosition, setShouldCacheNodes, size`

Methods inherited from class weblogic.apache.xpath.axes.PredicatedNodeTest
`acceptNode, canTraverseOutsideSubtree, clone, countProximityPosition, fixupVariables, getLocPathIterator, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, getProximityPosition, initPredicateInfo, initProximityPosition, isReverseAxes, nodeToString, resetProximityPositions, setLocPathIterator, setPredicateCount`

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

Methods inherited from class weblogic.apache.xpath.Expression
`assertion, error, executeCharsToContentHandler, isStableNumber, num, setSourceLocator, warn, xstr`

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

Field Detail

### m_traverser

    protected transient weblogic.apache.xml.dtm.DTMAxisTraverser m_traverser

  The traverser to use to navigate over the descendants.

Method Detail

### cloneWithReset

    public weblogic.apache.xml.dtm.DTMIterator cloneWithReset()
                                                       throws java.lang.CloneNotSupportedException

  Get a cloned Iterator that is reset to the beginning of the query.

  Returns:
    A cloned NodeIterator set of the start of the query.
  Throws:
    java.lang.CloneNotSupportedException -
  Overrides:
    cloneWithReset in class LocPathIterator

### getNextNode

    protected int getNextNode()

  Get the next node via getNextXXX. Bottlenecked for derived class override.

  Returns:
    The next node on the axis, or DTM.NULL.

### nextNode

    public int nextNode()

  Returns the next node in the set and advances the position of the iterator in the set. After a NodeIterator is created, the first call to nextNode() returns the first node in the set.

  Returns:
    The next `Node` in the set being iterated over, or `null` if there are no more members in that set.
  Overrides:
    nextNode in class LocPathIterator

### setRoot

    public void setRoot(int context,
                        java.lang.Object environment)

  Initialize the context values for this expression after it is cloned.

  Parameters:
    `execContext` - The XPath runtime context for this transformation.
  Overrides:
    setRoot in class LocPathIterator

### getAxis

    public int getAxis()

  Returns the axis being iterated, if it is known.

  Returns:
    Axis.CHILD, etc., or -1 if the axis is not known or is of multiple types.
  Overrides:
    getAxis in class LocPathIterator

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