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org.yajre.reteoo
Class TupleSource  

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

Direct Known Subclasses:

AssignmentNode, FilterNode, JoinNode, ParameterNode

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public abstract class TupleSource

extends java.lang.Object

A source of ReteTuples for a TupleSink.

Chain nodes propagate Tuples and extend this class.

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Field Summary
private  TupleSink	tupleSink           The next link in the chain.

 

Constructor Summary
protected	TupleSource()

 

Method Summary
protected abstract  java.util.Set	getTupleDeclarations()           Retrieve the Set of org.yajre.spi.Declarations in the propagated Tuples.
protected  TupleSink	getTupleSink()           Retrieve the TupleSink that receives propagated Tuples.
protected  void	propagateAssertion(ReteTuple tuple, org.yajre.WorkingMemory mem)           Propagate the assertion of a Tuple to the next TupleSink node in the chain.
protected  void	propagateRetraction(org.yajre.spi.Declaration decl, org.yajre.WorkingMemory mem)           Propagate the retraction of a Tuple to the next TupleSink node in the chain.
protected  void	setTupleSink(TupleSink tupleSink)           Set the TupleSink that receives Tuples propagated from this TupleSource.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

tupleSink

private TupleSink tupleSink

The next link in the chain.

Constructor Detail

TupleSource

protected TupleSource()

Method Detail

getTupleDeclarations

protected abstract java.util.Set getTupleDeclarations()

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

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setTupleSink

protected final void setTupleSink(TupleSink tupleSink)

Set the TupleSink that receives Tuples propagated from this TupleSource.

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getTupleSink

protected final TupleSink getTupleSink()

Retrieve the TupleSink that receives propagated Tuples.

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propagateAssertion

protected final void propagateAssertion(ReteTuple tuple,
                                        org.yajre.WorkingMemory mem)
                                 throws org.yajre.AssertionException

Propagate the assertion of a Tuple to the next TupleSink node in the chain.

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propagateRetraction

protected final void propagateRetraction(org.yajre.spi.Declaration decl,
                                         org.yajre.WorkingMemory mem)
                                  throws org.yajre.RetractionException

Propagate the retraction of a Tuple to the next TupleSink node in the chain.

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