Examples of ExistsNode

org.drools.core.reteoo.ExistsNode
ExistsNode extends BetaNode to perform tests for the existence of a Fact plus one or more conditions. Where existence is found the left ReteTuple is copied and propagated. Further to this it maintains the "truth" by canceling any Activations that are no longer considered true by the retraction of ReteTuple's or FactHandleImpl. Tuples are considered to be asserted from the left input and facts from the right input. The BetaNode provides the BetaMemory to store asserted ReteTuples and FactHandleImpls. Each fact handle is stored in the right memory.



org.drools.reteoo.ExistsNode

ExistsNode extends BetaNode to perform tests for the existence of a Fact plus one or more conditions. Where existence is found the left ReteTuple is copied and propagated. Further to this it maintains the "truth" by canceling any Activations that are no longer considered true by the retraction of ReteTuple's or FactHandleImpl. Tuples are considered to be asserted from the left input and facts from the right input. The BetaNode provides the BetaMemory to store asserted ReteTuples and FactHandleImpls. Each fact handle is stored in the right memory.




Examples of org.drools.reteoo.ExistsNode
337
338
339
340
341
342
343
344
345
346
347 
            // then attach the EXISTS node. It will work both as a simple exists node
            // or as subnetwork join node as the context was set appropriatelly
            // in each case
            context.setTupleSource( (LeftTupleSource) utils.attachNode( context,
                                                                        new ExistsNode( context.getNextId(),
                                                                                        context.getTupleSource(),
                                                                                        context.getObjectSource(),
                                                                                        betaConstraints,
                                                                                        behaviors,
                                                                                        context ) ) );

View Full Code Here



Examples of org.drools.reteoo.ExistsNode
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148                                                               buildContext.getRuleBase().getConfiguration() );                    
                    break;                                        
                        
            }


            ExistsNode existsNode = new ExistsNode( buildContext.getNextId(),
                                                    leftTupleSource,
                                                    rightObjectSource,
                                                    constraints,
                                                    buildContext );
            existsNode.attach(buildContext);
            context.put( name,
                         existsNode );


        } else {
            throw new IllegalArgumentException( "Cannot arguments " + args );

View Full Code Here

Examples of org.drools.reteoo.ExistsNode
343
344
345
346
347
348
349
350
351
352
353 
            // then attach the EXISTS node. It will work both as a simple exists node
            // or as subnetwork join node as the context was set appropriatelly
            // in each case
            context.setTupleSource( (LeftTupleSource) utils.attachNode( context,
                                                                        new ExistsNode( context.getNextId(),
                                                                                        context.getTupleSource(),
                                                                                        context.getObjectSource(),
                                                                                        betaConstraints,
                                                                                        context ) ) );
            context.setBetaconstraints( null );

View Full Code Here


0
1
2
3
4



TOP


Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.