Class PredicateContext
java.lang.Object
org.apache.commons.jxpath.ri.EvalContext
org.apache.commons.jxpath.ri.axes.PredicateContext
- All Implemented Interfaces:
Iterator
,ExpressionContext
EvalContext that checks predicates.
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Field Summary
Fields inherited from class org.apache.commons.jxpath.ri.EvalContext
parentContext, position, rootContext
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Constructor Summary
ConstructorsConstructorDescriptionPredicateContext
(EvalContext parentContext, Expression expression) Constructs a new PredicateContext. -
Method Summary
Modifier and TypeMethodDescriptionReturns the current context node.boolean
nextNode()
Returns true if there is another object in the current set.boolean
nextSet()
Returns true if there is another sets of objects to interate over.void
reset()
Sets current position = 0, which is the pre-iteration state.boolean
setPosition
(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, getSingleNodePointer, getValue, hasNext, isChildOrderingRequired, next, remove, sortPointers, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface java.util.Iterator
forEachRemaining
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Constructor Details
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PredicateContext
Constructs a new PredicateContext.- Parameters:
parentContext
- parent contextexpression
- compiled Expression
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Method Details
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getCurrentNodePointer
Description copied from class:EvalContext
Returns the current context node. Undefined before the beginning of the iteration.- Specified by:
getCurrentNodePointer
in classEvalContext
- Returns:
- NodePoiner
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nextNode
Description copied from class:EvalContext
Returns true if there is another object in the current set. Switches the current position and node to the next object.- Specified by:
nextNode
in classEvalContext
- Returns:
- boolean
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nextSet
Description copied from class:EvalContext
Returns true if there is another sets of objects to interate over. Resets the current position and node.- Overrides:
nextSet
in classEvalContext
- Returns:
- boolean
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reset
Description copied from class:EvalContext
Sets current position = 0, which is the pre-iteration state.- Overrides:
reset
in classEvalContext
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setPosition
Description copied from class:EvalContext
Moves 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:
setPosition
in classEvalContext
- Parameters:
position
- to set- Returns:
- boolean
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