net.sf.saxon.instruct
Class Message

java.lang.Object
  extended by net.sf.saxon.instruct.Instruction
      extended by net.sf.saxon.instruct.Message
All Implemented Interfaces:
Serializable, SourceLocator

public class Message
extends Instruction

An xsl:message element in the stylesheet.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class net.sf.saxon.instruct.Instruction
children
 
Constructor Summary
Message(Expression select, Expression terminate)
           
 
Method Summary
 SequenceType getResultType()
          Get the result type of the instruction.
 TailCall processLeavingTail(XPathContext context)
          ProcessLeavingTail: called to do the real work of this instruction.
 void setInstructionDetails(Controller controller, NamePool namePool, InstructionDetails details)
          Get the name of this instruction for diagnostic and tracing purposes
 
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

Message

public Message(Expression select,
               Expression terminate)
Method Detail

setInstructionDetails

public void setInstructionDetails(Controller controller,
                                  NamePool namePool,
                                  InstructionDetails details)
Get the name of this instruction for diagnostic and tracing purposes

Specified by:
setInstructionDetails in class Instruction

getResultType

public SequenceType getResultType()
Get the result type of the instruction. The result is always an empty sequence.

Overrides:
getResultType in class Instruction
Returns:
A SequenceType denoting the type EMPTY

processLeavingTail

public TailCall processLeavingTail(XPathContext context)
                            throws TransformerException
Description copied from class: Instruction
ProcessLeavingTail: called to do the real work of this instruction. This method must be implemented in each subclass. The results of the instruction are written to the current Receiver, which can be obtained via the Controller.

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