Examples of org.drools.ruleflow.core.Join

org.drools.ruleflow.core.Join
Represents a join node in a RuleFlow. A join is a special kind of node with multiple incoming connections and one outgoing connection. The type of join decides when the outgoing connections will be triggered (based on which incoming connections have been triggered). @author Kris Verlaenen

        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_AND );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_AND );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );

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        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_XOR );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_XOR );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );

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                            errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.SPLIT_OUTGOING_CONNECTION_WITHOUT_CONSTRAINT, "name = " + split.getName() ) );
                        }
                    }
                }
            } else if ( node instanceof Join ) {
                final Join join = (Join) node;
                if ( join.getType() == Join.TYPE_UNDEFINED ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_WITHOUT_TYPE, "name = " + join.getName() ) );
                }
                if ( join.getIncomingConnections().size() < 2 ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_NOT_ENOUGH_INCOMING_CONNECTIONS, "name = " + join.getName() ) );
                }
                if ( join.getTo() == null ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_WITHOUT_OUTGOING_CONNECTION, "name = " + join.getName() ) );
                }
            } else if ( node instanceof MilestoneNode ) {
                final MilestoneNode milestone = (MilestoneNode) node;
                if ( milestone.getFrom() == null ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.MILESTONE_NODE_WITHOUT_INCOMING_CONNECTIONS, "name = " + milestone.getName() ) );

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    protected Join getJoinNode() {
        return (Join) getNode();
    }


    public void trigger(final RuleFlowNodeInstance from) {
        final Join join = getJoinNode();
        switch ( join.getType() ) {
            case Join.TYPE_XOR :
                triggerCompleted();
                break;
            case Join.TYPE_AND :
                final Node node = getProcessInstance().getRuleFlowProcess().getNode( from.getNodeId() );
                final Integer count = (Integer) this.triggers.get( node );
                if ( count == null ) {
                    this.triggers.put( node,
                                       new Integer( 1 ) );
                } else {
                    this.triggers.put( node,
                                       new Integer( count.intValue() + 1 ) );
                }
                checkActivation();
                break;
            default :
                throw new IllegalArgumentException( "Illegal join type " + join.getType() );
        }
    }

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        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_AND );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_AND );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );

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        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_XOR );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_XOR );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );

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                            errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.SPLIT_OUTGOING_CONNECTION_WITHOUT_CONSTRAINT ) );
                        }
                    }
                }
            } else if ( node instanceof Join ) {
                final Join join = (Join) node;
                if ( join.getType() == Join.TYPE_UNDEFINED ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_WITHOUT_TYPE ) );
                }
                if ( join.getIncomingConnections().size() < 2 ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_NOT_ENOUGH_INCOMING_CONNECTIONS ) );
                }
                if ( join.getTo() == null ) {
                    errors.add( new RuleFlowProcessValidationErrorImpl( RuleFlowProcessValidationError.JOIN_WITHOUT_OUTGOING_CONNECTION ) );
                }
            } else if ( node instanceof MilestoneNode ) {
                final MilestoneNode milestone = (MilestoneNode) node;
                if ( milestone.getFrom() == null ) {

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Related Classes of org.drools.ruleflow.core.Join

org.drools.reteoo.RuleFlowGroupTest

org.drools.ruleflow.core.impl.RuleFlowProcessValidatorImpl

org.drools.ruleflow.instance.impl.RuleFlowJoinInstanceImpl

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