net.sf.joost.instruction
Class WhileFactory.Instance

java.lang.Object
  extended by net.sf.joost.instruction.AbstractInstruction
      extended by net.sf.joost.instruction.NodeBase
          extended by net.sf.joost.instruction.WhileFactory.Instance
All Implemented Interfaces:
Cloneable, Constants
Enclosing class:
WhileFactory

public final class WhileFactory.Instance
extends NodeBase

Represents an instance of the while element.


Nested Class Summary
 
Nested classes/interfaces inherited from class net.sf.joost.instruction.NodeBase
NodeBase.End
 
Field Summary
private  AbstractInstruction contents
           
private  AbstractInstruction successor
           
private  Tree test
           
 
Fields inherited from class net.sf.joost.instruction.NodeBase
lastChild, localFieldStack, nodeEnd, parent, preserveSpace, publicId, qName, scopedVariables, systemId
 
Fields inherited from class net.sf.joost.instruction.AbstractInstruction
colNo, lineNo, next
 
Fields inherited from interface net.sf.joost.Constants
DEBUG, DEFAULT_ENCODING, FEAT_NS, FEAT_NSPREFIX, FEATURE_URI_PREFIX, FUNC_NS, JOOST_EXT_NS, PR_ATTRIBUTES, PR_BUFFER, PR_CHILDREN, PR_CONTINUE, PR_ERROR, PR_SELF, PR_SIBLINGS, STX_NS
 
Constructor Summary
protected WhileFactory.Instance(String qName, NodeBase parent, ParseContext context, Tree test)
           
 
Method Summary
 boolean compile(int pass, ParseContext context)
          This method may be overwritten to perform compilation tasks (for example optimization) on this node.
protected  void onDeepCopy(AbstractInstruction copy, HashMap copies)
          Callback that will be called when a clone of this instance has been created.
 short process(Context context)
          Evaluate the expression given in the test attribute and adjust the next instruction depending on the result.
 
Methods inherited from class net.sf.joost.instruction.NodeBase
declareVariable, getNode, getNodeEnd, insert, mayDropEnd, processable, processEnd, setEndLocation, toString
 
Methods inherited from class net.sf.joost.instruction.AbstractInstruction
deepCopy, deepHashtableCopy, deepTemplateArrayCopy
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

test

private Tree test

contents

private AbstractInstruction contents

successor

private AbstractInstruction successor
Constructor Detail

WhileFactory.Instance

protected WhileFactory.Instance(String qName,
                                NodeBase parent,
                                ParseContext context,
                                Tree test)
Method Detail

compile

public boolean compile(int pass,
                       ParseContext context)
                throws SAXException
Description copied from class: NodeBase
This method may be overwritten to perform compilation tasks (for example optimization) on this node. compile will be called with a parameter 0 directly after parsing the node, i.e. after parsing all children. The invocation with bigger pass parameters happens not before the whole transformation sheet has been completely parsed.

Overrides:
compile in class NodeBase
Parameters:
pass - the number of invocations already performed on this node
context - the parse context
Returns:
true if another invocation in the next pass is necessary, false if the compiling is complete. This instance returns false.
Throws:
SAXException

process

public short process(Context context)
              throws SAXException
Evaluate the expression given in the test attribute and adjust the next instruction depending on the result.

Overrides:
process in class NodeBase
Parameters:
context - the current context
Returns:
Constants.PR_CONTINUE
Throws:
SAXException - if an error occurs (in a derived class)

onDeepCopy

protected void onDeepCopy(AbstractInstruction copy,
                          HashMap copies)
Description copied from class: AbstractInstruction
Callback that will be called when a clone of this instance has been created. To be overridden in subclasses.

Overrides:
onDeepCopy in class NodeBase
Parameters:
copy - the created clones
copies - the map of already copied objects