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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.reasoner.rulesys.impl 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.hp.hpl.jena.reasoner.rulesys.impl.RETEQueue

RETEQueue
public class RETEQueue implements RETESinkNode,RETESourceNode(Code)
Represents one input left of a join node. The queue points to a sibling queue representing the other leg which should be joined against.
author:
   Dave Reynolds
version:
   $Revision: 1.11 $ on $Date: 2008/01/02 12:06:16 $

Inner Class :protected static class Count

Field Summary
protected  RETESinkNodecontinuation
    
protected  byte[]matchIndices
    
protected  HashMapqueue
    
protected  RETEQueuesibling
    

Constructor Summary
public  RETEQueue(byte[] matchIndices)
     Constructor.
public  RETEQueue(List matchIndexList)
     Constructor.

Method Summary
public  RETENodeclone(Map netCopy, RETERuleContext context)
     Clone this node in the network.
public  voidfire(BindingVector env, boolean isAdd)
     Propagate a token to this node.
Parameters:
  env - a set of variable bindings for the rule being processed.
public  voidsetContinuation(RETESinkNode continuation)
    
public  voidsetSibling(RETEQueue sibling)
     Set the sibling for this node.

Field Detail
continuation
protected RETESinkNode continuation(Code)
The node that results should be passed on to



matchIndices
protected byte[] matchIndices(Code)
A set of variable indices which should match between the two inputs



queue
protected HashMap queue(Code)
A multi-set of partially bound envionments



sibling
protected RETEQueue sibling(Code)
The sibling queue which forms the other half of the join node




Constructor Detail
RETEQueue
public RETEQueue(byte[] matchIndices)(Code)
Constructor. The queue is not usable until it has been bound to a sibling and a continuation node.
Parameters:
  A - set of variable indices which should match between the two inputs



RETEQueue
public RETEQueue(List matchIndexList)(Code)
Constructor. The queue is not usable until it has been bound to a sibling and a continuation node.
Parameters:
  A - List of variable indices which should match between the two inputs




Method Detail
clone
public RETENode clone(Map netCopy, RETERuleContext context)(Code)
Clone this node in the network.
Parameters:
  context - the new context to which the network is being ported



fire
public void fire(BindingVector env, boolean isAdd)(Code)
Propagate a token to this node.
Parameters:
  env - a set of variable bindings for the rule being processed.
Parameters:
  isAdd - distinguishes between add and remove operations.



setContinuation
public void setContinuation(RETESinkNode continuation)(Code)
Set the continuation node for this node (and any sibling)



setSibling
public void setSibling(RETEQueue sibling)(Code)
Set the sibling for this node.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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