net.sf.saxon.instruct
Class Variable

java.lang.Object
  extended by net.sf.saxon.instruct.Instruction
      extended by net.sf.saxon.instruct.GeneralVariable
          extended by net.sf.saxon.instruct.DefiningVariable
              extended by net.sf.saxon.instruct.Variable
All Implemented Interfaces:
Serializable, SourceLocator, Binding

public class Variable
extends DefiningVariable

Handler for xsl:variable elements in stylesheet.
The xsl:variable element has mandatory attribute name and optional attribute select

See Also:
Serialized Form

Field Summary
 
Fields inherited from class net.sf.saxon.instruct.DefiningVariable
anyTypeAllowed
 
Fields inherited from class net.sf.saxon.instruct.GeneralVariable
variableFingerprint
 
Fields inherited from class net.sf.saxon.instruct.Instruction
children
 
Constructor Summary
Variable()
           
 
Method Summary
 TailCall processLeavingTail(XPathContext context)
          Process the variable declaration
 void setInstructionDetails(Controller controller, NamePool namePool, InstructionDetails details)
          Get the name of the instruction for use in diagnostics
 
Methods inherited from class net.sf.saxon.instruct.DefiningVariable
evaluateVariable, getRequiredType, getSlotNumber, getVariableName, setRequiredType, setSlotNumber, setVariableName
 
Methods inherited from class net.sf.saxon.instruct.GeneralVariable
containsLocals, getResultType, getSelectExpression, getSelectValue, getVariableFingerprint, init, isAssignable, isGlobal, isRequiredParam, isTunnelParam, setAssignable, setContainsLocals, setGlobal, setRequiredParam, setSelect, setTunnel, setVariableFingerprint
 
Methods inherited from class net.sf.saxon.instruct.Instruction
assembleParams, assembleTunnelParams, getChildren, getColumnNumber, getInstructionDetails, getInstructionName, getLineNumber, getPublicId, getSystemId, getSystemId, process, processChildren, processChildrenLeavingTail, recoverableError, setChildren, setSourceLocation, styleError, styleError
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Variable

public Variable()
Method Detail

setInstructionDetails

public void setInstructionDetails(Controller controller,
                                  NamePool namePool,
                                  InstructionDetails details)
Description copied from class: Instruction
Get the name of the instruction for use in diagnostics

Overrides:
setInstructionDetails in class GeneralVariable

processLeavingTail

public TailCall processLeavingTail(XPathContext context)
                            throws TransformerException
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.
Throws:
TransformerException