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org.yajre.reteoo
Class FilterNode  

java.lang.Object
  org.yajre.reteoo.TupleSource
      org.yajre.reteoo.FilterNode

All Implemented Interfaces:

TupleSink

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public final class FilterNode

extends TupleSource

implements TupleSink

Node representing a boolean condition statement which filters the propagation of asserted ReteTuples.

Using a semantic org.yajre.spi.FilterCondition, this node may allow or disallow Tuples to proceed further through the Rete-OO network.

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Field Summary
private  org.yajre.spi.FilterCondition	filterCondition           The semantic FilterCondition.
private  TupleSource	tupleSource           The source of incoming Tuples.

 

Fields inherited from class org.yajre.reteoo.TupleSource

 

Constructor Summary

FilterNode(TupleSource tupleSource, org.yajre.spi.FilterCondition filterCondition)

 

Method Summary
org.yajre.spi.FilterCondition	getFilterCondition()           The FilterCondition associated with this node.
java.util.Set	getTupleDeclarations()           Retrieve the Set of org.yajre.spi.Declarations in the propagated Tuples.
void	sinkAssertTuple(TupleSource inputSource, ReteTuple tuple, org.yajre.WorkingMemory mem)           Assert a new Tuple.
void	sinkRetractObject(TupleSource inputSource, org.yajre.spi.Declaration decl, org.yajre.WorkingMemory mem)           Retract a fact Object.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class org.yajre.reteoo.TupleSource

getTupleSink, propagateAssertion, propagateRetraction, setTupleSink

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

filterCondition

private org.yajre.spi.FilterCondition filterCondition

The semantic FilterCondition.

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tupleSource

private TupleSource tupleSource

The source of incoming Tuples.

Constructor Detail

FilterNode

public FilterNode(TupleSource tupleSource,
                  org.yajre.spi.FilterCondition filterCondition)

Method Detail

getTupleDeclarations

public java.util.Set getTupleDeclarations()

Description copied from class: TupleSource

Retrieve the Set of org.yajre.spi.Declarations in the propagated Tuples.

Specified by:

getTupleDeclarations in class TupleSource

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getFilterCondition

public org.yajre.spi.FilterCondition getFilterCondition()

The FilterCondition associated with this node.

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sinkAssertTuple

public void sinkAssertTuple(TupleSource inputSource,
                            ReteTuple tuple,
                            org.yajre.WorkingMemory mem)
                     throws org.yajre.AssertionException

Description copied from interface: TupleSink

Assert a new Tuple.

Specified by:

sinkAssertTuple in interface TupleSink

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sinkRetractObject

public void sinkRetractObject(TupleSource inputSource,
                              org.yajre.spi.Declaration decl,
                              org.yajre.WorkingMemory mem)
                       throws org.yajre.RetractionException

Description copied from interface: TupleSink

Retract a fact Object.

Specified by:

sinkRetractObject in interface TupleSink

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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