Examples of org.drools.core.common.TupleStartEqualsConstraint

org.drools.core.common.TupleStartEqualsConstraint
Checks if one tuple is the start subtuple of other tuple. For instance, if we have two tuples: T1 = [ a, b, c ] T2 = [ a, b, c, d, e] This constraint will evaluate to true as T1 is the starting subtuple of T2. On the other hand, if we have: T1 = [ a, c, b ] T2 = [ a, b, c, d, e ] This constraint will evaluate to false, as T1 is not the starting subtuple of T2. Besides having the same elements, the order is different. This constraint is used when joining subnetworks back into the main network.

                } else if (node instanceof AccumulateMemory) {
                    rightMemory = ((AccumulateMemory) node).betaMemory.getRightTupleMemory();
                }




                final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
                TupleStartEqualsConstraintContextEntry contextEntry = new TupleStartEqualsConstraintContextEntry();
                contextEntry.updateFromTuple(workingMemory, leftTuple);


                FastIterator rightIt = rightMemory.fastIterator();
                RightTuple temp = null;
                for (RightTuple rightTuple = rightMemory.getFirst(leftTuple, (InternalFactHandle) context.getFactHandle(), rightIt); rightTuple != null; ) {
                    temp = (RightTuple) rightIt.next(rightTuple);


                    if (constraint.isAllowedCachedLeft(contextEntry, rightTuple.getFactHandle())) {
                        rightMemory.remove(rightTuple);
                    }
                    rightTuple = temp;
                }
            }

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                } else if (node instanceof AccumulateMemory) {
                    rightMemory = ((AccumulateMemory) node).betaMemory.getRightTupleMemory();
                }




                final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
                TupleStartEqualsConstraintContextEntry contextEntry = new TupleStartEqualsConstraintContextEntry();
                contextEntry.updateFromTuple(workingMemory, leftTuple);


                FastIterator rightIt = rightMemory.fastIterator();
                RightTuple temp = null;
                for (RightTuple rightTuple = rightMemory.getFirst(leftTuple, (InternalFactHandle) context.getFactHandle(), rightIt); rightTuple != null; ) {
                    temp = (RightTuple) rightIt.next(rightTuple);


                    if (constraint.isAllowedCachedLeft(contextEntry, rightTuple.getFactHandle())) {
                        rightMemory.remove(rightTuple);
                    }
                    rightTuple = temp;
                }
            }

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            // restore tuple source from before the start of the sub network
            context.setTupleSource( tupleSource );


            // create a tuple start equals constraint and set it in the context
            final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
            final List betaConstraints = new ArrayList();
            betaConstraints.add( constraint );
            context.setBetaconstraints( betaConstraints );
            existSubNetwort = true;
        }

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                } else if (node instanceof AccumulateMemory) {
                    rightMemory = ((AccumulateMemory) node).betaMemory.getRightTupleMemory();
                }




                final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
                TupleStartEqualsConstraintContextEntry contextEntry = new TupleStartEqualsConstraintContextEntry();
                contextEntry.updateFromTuple(workingMemory, leftTuple);


                FastIterator rightIt = rightMemory.fastIterator();
                RightTuple temp = null;
                for (RightTuple rightTuple = rightMemory.getFirst(leftTuple, (InternalFactHandle) context.getFactHandle(), rightIt); rightTuple != null; ) {
                    temp = (RightTuple) rightIt.next(rightTuple);


                    if (constraint.isAllowedCachedLeft(contextEntry, rightTuple.getFactHandle())) {
                        rightMemory.remove(rightTuple);
                    }
                    rightTuple = temp;
                }
            }

View Full Code Here


            // restore tuple source from before the start of the sub network
            context.setTupleSource( tupleSource );


            // create a tuple start equals constraint and set it in the context
            final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
            final List betaConstraints = new ArrayList();
            betaConstraints.add( constraint );
            context.setBetaconstraints( betaConstraints );
            existSubNetwort = true;
        }

View Full Code Here


            // restore tuple source from before the start of the sub network
            context.setTupleSource( tupleSource );


            // create a tuple start equals constraint and set it in the context
            final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
            final List betaConstraints = new ArrayList();
            betaConstraints.add( constraint );
            context.setBetaconstraints( betaConstraints );
            existSubNetwort = true;
        }

View Full Code Here


                // restore tuple source from before the start of the sub network
                context.setTupleSource( tupleSource );


                // create a tuple start equals constraint and set it in the context
                final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
                final List<BetaNodeFieldConstraint> predicates = new ArrayList<BetaNodeFieldConstraint>();
                predicates.add( constraint );
                context.setBetaconstraints( predicates );
                existSubNetwort = true;

View Full Code Here


                // restore tuple source from before the start of the sub network
                context.setTupleSource( tupleSource );


                // create a tuple start equals constraint and set it in the context
                final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
                final List<BetaNodeFieldConstraint> predicates = new ArrayList<BetaNodeFieldConstraint>();
                predicates.add( constraint );
                context.setBetaconstraints( predicates );
                existSubNetwort = true;

View Full Code Here


            // restore tuple source from before the start of the sub network
            context.setTupleSource( tupleSource );


            // create a tuple start equals constraint and set it in the context
            final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
            final List betaConstraints = new ArrayList();
            betaConstraints.add( constraint );
            context.setBetaconstraints( betaConstraints );
            existSubNetwort = true;
        }

View Full Code Here


            // restore tuple source from before the start of the sub network
            context.setTupleSource( tupleSource );


            // create a tuple start equals constraint and set it in the context
            final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
            final List betaConstraints = new ArrayList();
            betaConstraints.add( constraint );
            context.setBetaconstraints( betaConstraints );
            existSubNetwort = true;
        }

View Full Code Here

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org.drools.core.reteoo.builder.AccumulateBuilder

org.drools.core.reteoo.builder.CollectBuilder

org.drools.core.reteoo.builder.GroupElementBuilder$ExistsBuilder

org.drools.core.reteoo.builder.GroupElementBuilder$NotBuilder

org.drools.core.reteoo.LeftTuple

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