Class ChildContext
java.lang.Object
org.apache.commons.jxpath.ri.EvalContext
org.apache.commons.jxpath.ri.axes.ChildContext
- All Implemented Interfaces:
Iterator,ExpressionContext
EvalContext that can walk the "child::", "following-sibling::" and "preceding-sibling::" axes.
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Field Summary
Fields inherited from class org.apache.commons.jxpath.ri.EvalContext
parentContext, position, rootContext -
Constructor Summary
ConstructorsConstructorDescriptionChildContext(EvalContext parentContext, NodeTest nodeTest, boolean startFromParentLocation, boolean reverse) Constructs a new ChildContext. -
Method Summary
Modifier and TypeMethodDescriptionReturns the current context node.This method is called on the last context on the path when only one value is needed.booleannextNode()Returns true if there is another object in the current set.voidreset()Sets current position = 0, which is the pre-iteration state.booleansetPosition(int position) Moves the current position to the specified index.Methods inherited from class org.apache.commons.jxpath.ri.EvalContext
getContextNodeList, getContextNodePointer, getCurrentPosition, getDocumentOrder, getJXPathContext, getNodeSet, getPosition, getRootContext, getValue, hasNext, isChildOrderingRequired, next, nextSet, remove, sortPointers, toStringMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface java.util.Iterator
forEachRemaining
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Constructor Details
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ChildContext
public ChildContext(EvalContext parentContext, NodeTest nodeTest, boolean startFromParentLocation, boolean reverse) Constructs a new ChildContext.- Parameters:
parentContext- parent EvalContextnodeTest- NodeTeststartFromParentLocation- whether to start from parent locationreverse- whether to iterate in reverse
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Method Details
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getCurrentNodePointer
Description copied from class:EvalContextReturns the current context node. Undefined before the beginning of the iteration.- Specified by:
getCurrentNodePointerin classEvalContext- Returns:
- NodePoiner
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getSingleNodePointer
This method is called on the last context on the path when only one value is needed. Note that this will return the whole property, even if it is a collection. It will not extract the first element of the collection. For example, "books" will return the collection of books rather than the first book from that collection.- Overrides:
getSingleNodePointerin classEvalContext- Returns:
- Pointer
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nextNode
Description copied from class:EvalContextReturns true if there is another object in the current set. Switches the current position and node to the next object.- Specified by:
nextNodein classEvalContext- Returns:
- boolean
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reset
Description copied from class:EvalContextSets current position = 0, which is the pre-iteration state.- Overrides:
resetin classEvalContext
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setPosition
Description copied from class:EvalContextMoves the current position to the specified index. Used with integer predicates to quickly get to the n'th element of the node set. Returns false if the position is out of the node set range. You can call it with 0 as the position argument to restart the iteration.- Overrides:
setPositionin classEvalContext- Parameters:
position- to set- Returns:
- boolean
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