net.sf.saxon.instruct
Class GlobalVariable
java.lang.Object
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+--net.sf.saxon.expr.ComputedExpression
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+--net.sf.saxon.instruct.Instruction
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+--net.sf.saxon.instruct.GeneralVariable
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+--net.sf.saxon.instruct.GlobalVariable
- All Implemented Interfaces:
- Binding, Container, Expression, InstructionInfoProvider, java.io.Serializable, javax.xml.transform.SourceLocator
- Direct Known Subclasses:
- GlobalParam
- public class GlobalVariable
- extends GeneralVariable
- implements Container
Handler for global variables in a stylesheet or query.
- See Also:
- Serialized Form
Methods inherited from class net.sf.saxon.instruct.GeneralVariable |
analyze, display, evaluateItem, getCardinality, getInstructionNameCode, getItemType, getNameCode, getRequiredType, getSelectExpression, getSlotNumber, getVariableFingerprint, getVariableName, init, isAssignable, isRequiredParam, isTunnelParam, iterate, iterateSubExpressions, promoteInst, setAssignable, setNameCode, setRequiredParam, setRequiredType, setSelectExpression, setSlotNumber, setTunnel, setVariableName, simplify |
Methods inherited from class net.sf.saxon.instruct.Instruction |
appendItem, assembleParams, assembleTunnelParams, computeCardinality, computeSpecialProperties, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getImplementationMethod, getSourceLocator, process, promote |
Methods inherited from class net.sf.saxon.expr.ComputedExpression |
adoptChildExpression, computeDependencies, computeStaticProperties, dynamicError, dynamicError, getColumnNumber, getConstructType, getDependencies, getIntrinsicDependencies, getLineNumber, getLocationId, getParentExpression, getPublicId, getSpecialProperties, getSystemId, markTailFunctionCalls, resetStaticProperties, setLocationId, setParentExpression, typeError |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface javax.xml.transform.SourceLocator |
getColumnNumber, getLineNumber, getPublicId, getSystemId |
GlobalVariable
public GlobalVariable()
getExecutable
public Executable getExecutable()
- Description copied from interface:
Container
- Get the Executable (representing a complete stylesheet or query) of which this Container forms part
- Specified by:
getExecutable
in interface Container
- Overrides:
getExecutable
in class ComputedExpression
setExecutable
public void setExecutable(Executable executable)
setContainsLocals
public void setContainsLocals(SlotManager map)
isGlobal
public boolean isGlobal()
- Overrides:
isGlobal
in class GeneralVariable
processLeavingTail
public TailCall processLeavingTail(XPathContext context)
throws XPathException
- Process the variable declaration
- Specified by:
processLeavingTail
in class Instruction
- Parameters:
context
- The dynamic context of the transformation, giving access to the current node,
the current variables, etc.
- Returns:
- null if the instruction has completed execution; or a TailCall indicating
a function call or template call that is delegated to the caller, to be made after the stack has
been unwound so as to save stack space.
XPathException
getSelectValue
public Value getSelectValue(XPathContext context)
throws XPathException
- Evaluate the variable. That is,
get the value of the select expression if present or the content
of the element otherwise, either as a tree or as a sequence
- Overrides:
getSelectValue
in class GeneralVariable
XPathException
evaluateVariable
public Value evaluateVariable(XPathContext context)
throws XPathException
- Evaluate the variable
- Specified by:
evaluateVariable
in interface Binding
XPathException
getInstructionInfo
public InstructionInfo getInstructionInfo()
- Get InstructionInfo for this expression
- Specified by:
getInstructionInfo
in interface InstructionInfoProvider
- Overrides:
getInstructionInfo
in class Instruction