Examples of org.drools.workflow.instance.NodeInstance

org.drools.workflow.instance.NodeInstance
Represents a node instance in a RuleFlow. This is the runtime counterpart of a node, containing all runtime state. Node instance classes also contain the logic on what to do when it is being triggered (start executing) or completed (end of execution). @author Kris Verlaenen


  public List<NodeInstance> getNodeInstances(final long nodeId) {
    List<NodeInstance> result = new ArrayList<NodeInstance>();
    for (final Iterator<NodeInstance> iterator = this.nodeInstances
        .iterator(); iterator.hasNext();) {
      final NodeInstance nodeInstance = iterator.next();
      if (nodeInstance.getNodeId() == nodeId) {
        result.add(nodeInstance);
      }
    }
    return result;
  }

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      InternalWorkingMemory workingMemory = (InternalWorkingMemory) getWorkingMemory();
      ((EventSupport) getWorkingMemory()).getRuleFlowEventSupport()
          .fireBeforeRuleFlowProcessCompleted(this, workingMemory);
      // deactivate all node instances of this process instance
      while (!nodeInstances.isEmpty()) {
        NodeInstance nodeInstance = nodeInstances.get(0);
        ((org.drools.workflow.instance.NodeInstance) nodeInstance)
            .cancel();
      }
      removeEventListeners();
      workingMemory.removeProcessInstance(this);

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    Collection<NodeInstance> result = nodeInstances;
    if (recursive) {
      result = new ArrayList<NodeInstance>(result);
      for (Iterator<NodeInstance> iterator = nodeInstances.iterator(); iterator
          .hasNext();) {
        NodeInstance nodeInstance = iterator.next();
        if (nodeInstance instanceof NodeInstanceContainer) {
          result
              .addAll(((org.drools.workflow.instance.NodeInstanceContainer) nodeInstance)
                  .getNodeInstances(true));
        }

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  }


  public NodeInstance getFirstNodeInstance(final long nodeId) {
    for (final Iterator<NodeInstance> iterator = this.nodeInstances
        .iterator(); iterator.hasNext();) {
      final NodeInstance nodeInstance = iterator.next();
      if (nodeInstance.getNodeId() == nodeId) {
        return nodeInstance;
      }
    }
    return null;
  }

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  public List<NodeInstance> getNodeInstances(final long nodeId) {
    List<NodeInstance> result = new ArrayList<NodeInstance>();
    for (final Iterator<NodeInstance> iterator = this.nodeInstances
        .iterator(); iterator.hasNext();) {
      final NodeInstance nodeInstance = iterator.next();
      if (nodeInstance.getNodeId() == nodeId) {
        result.add(nodeInstance);
      }
    }
    return result;
  }

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      InternalWorkingMemory workingMemory = (InternalWorkingMemory) getWorkingMemory();
      ((EventSupport) getWorkingMemory()).getRuleFlowEventSupport()
          .fireBeforeRuleFlowProcessCompleted(this, workingMemory);
      // deactivate all node instances of this process instance
      while (!nodeInstances.isEmpty()) {
        NodeInstance nodeInstance = nodeInstances.get(0);
        ((org.drools.workflow.instance.NodeInstance) nodeInstance)
            .cancel();
      }
      removeEventListeners();
      workingMemory.removeProcessInstance(this);

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          for (Iterator<Connection> iterator = connections.iterator(); iterator.hasNext(); ) {
              Connection connection = iterator.next();
              if ((connection.getFrom() instanceof CompositeNode.CompositeNodeStart) &&
                  (from == null || 
              ((CompositeNode.CompositeNodeStart) connection.getFrom()).getInNode().getId() == from.getNodeId())) {
                  NodeInstance nodeInstance = getNodeInstance(connection.getFrom());
                  ((org.drools.workflow.instance.NodeInstance) nodeInstance).trigger(null, nodeAndType.getType());
                  return;
              }
          }
        } else {
          // try to search for start nodes
          boolean found = false;
          for (Node node: getCompositeNode().getNodes()) {
            if (node instanceof StartNode) {
              StartNode startNode = (StartNode) node;
              if (startNode.getTriggers() == null || startNode.getTriggers().isEmpty()) {
                      NodeInstance nodeInstance = getNodeInstance(startNode.getTo().getTo());
                      ((org.drools.workflow.instance.NodeInstance) nodeInstance)
                        .trigger(null, NodeImpl.CONNECTION_DEFAULT_TYPE);
                      found = true;
              }
            }

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    }


    public void triggerCompleted(String outType) {
        triggerCompleted(outType, true);
        while (!nodeInstances.isEmpty()) {
            NodeInstance nodeInstance = (NodeInstance) nodeInstances.get(0);
            ((org.drools.workflow.instance.NodeInstance) nodeInstance).cancel();
        }
    }

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        }
    }


    public void cancel() {
        while (!nodeInstances.isEmpty()) {
            NodeInstance nodeInstance = (NodeInstance) nodeInstances.get(0);
            ((org.drools.workflow.instance.NodeInstance) nodeInstance).cancel();
        }
        super.cancel();
    }

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    public Collection<NodeInstance> getNodeInstances(boolean recursive) {
        Collection<NodeInstance> result = nodeInstances;
        if (recursive) {
            result = new ArrayList<NodeInstance>(result);
            for (Iterator<NodeInstance> iterator = nodeInstances.iterator(); iterator.hasNext(); ) {
                NodeInstance nodeInstance = iterator.next();
                if (nodeInstance instanceof NodeInstanceContainer) {
                    result.addAll(((NodeInstanceContainer)
                    nodeInstance).getNodeInstances(true));
                }
            }

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Related Classes of org.drools.workflow.instance.NodeInstance

org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl

org.drools.workflow.instance.node.CompositeNodeInstance

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