net.sf.saxon.instruct
Class ForEachGroup

java.lang.Object
  extended bynet.sf.saxon.instruct.Instruction
      extended bynet.sf.saxon.instruct.ForEachGroup
All Implemented Interfaces:
java.io.Serializable, javax.xml.transform.SourceLocator

public class ForEachGroup
extends Instruction

Handler for xsl:for-each-group elements in stylesheet. This is a new instruction defined in XSLT 2.0

See Also:
Serialized Form

Field Summary
static int GROUP_ADJACENT
           
static int GROUP_BY
           
static int GROUP_ENDING
           
static int GROUP_STARTING
           
 
Fields inherited from class net.sf.saxon.instruct.Instruction
children
 
Constructor Summary
ForEachGroup(Expression select, byte algorithm, java.lang.Object key, java.text.Collator collator, SortKeyDefinition[] sortKeys)
           
 
Method Summary
 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, getResultType, 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
 

Field Detail

GROUP_BY

public static final int GROUP_BY
See Also:
Constant Field Values

GROUP_ADJACENT

public static final int GROUP_ADJACENT
See Also:
Constant Field Values

GROUP_STARTING

public static final int GROUP_STARTING
See Also:
Constant Field Values

GROUP_ENDING

public static final int GROUP_ENDING
See Also:
Constant Field Values
Constructor Detail

ForEachGroup

public ForEachGroup(Expression select,
                    byte algorithm,
                    java.lang.Object key,
                    java.text.Collator collator,
                    SortKeyDefinition[] sortKeys)
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

processLeavingTail

public TailCall processLeavingTail(XPathContext context)
                            throws javax.xml.transform.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:
javax.xml.transform.TransformerException