public class AccumulatorRule extends java.lang.Object implements RuleTarget
Constructor and Description |
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AccumulatorRule(Expression newValueExpression,
SlotManager stackFrameMap)
Create a rule
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Modifier and Type | Method and Description |
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void |
export(ExpressionPresenter out)
Output diagnostic explanation to an ExpressionPresenter
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Expression |
getNewValueExpression() |
SlotManager |
getStackFrameMap() |
void |
registerRule(Rule rule)
Register a rule for which this is the target
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public AccumulatorRule(Expression newValueExpression, SlotManager stackFrameMap)
newValueExpression
- the expression that computes a new value of the accumulator functionstackFrameMap
- the stack frame used to evaluate this expressionpublic Expression getNewValueExpression()
public void export(ExpressionPresenter out) throws XPathException
RuleTarget
export
in interface RuleTarget
out
- the destination for the explanationXPathException
public SlotManager getStackFrameMap()
public void registerRule(Rule rule)
registerRule
in interface RuleTarget
rule
- a rule in which this is the targetCopyright (c) 2004-2018 Saxonica Limited. All rights reserved.