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TaskNode (jbpm-3.0.4) - JBoss JBPM 3.0.4 API 英文版文档

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org.jbpm.graph.node
Class TaskNode

java.lang.Object
  org.jbpm.graph.def.GraphElement
      org.jbpm.graph.def.Node
          org.jbpm.graph.node.TaskNode

All Implemented Interfaces:

Parsable, java.io.Serializable

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public class TaskNode

extends Node

implements Parsable

is a node that relates to one or more tasks. Property signal specifies how task completion triggers continuation of execution.

See Also:

Serialized Form

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Field Summary
static int	SIGNAL_FIRST           proceeds execution when the first task instance is completed.
static int	SIGNAL_FIRST_WAIT           proceeds execution when the first task instance is completed.
static int	SIGNAL_LAST           proceeds execution when the last task instance is completed.
static int	SIGNAL_LAST_WAIT           proceeds execution when the last task instance is completed.
static int	SIGNAL_NEVER           execution never continues, regardless wether tasks are created or still unfinished.
static int	SIGNAL_UNSYNCHRONIZED           execution always continues, regardless wether tasks are created or still unfinished.

 

Fields inherited from class org.jbpm.graph.def.Node

action, arrivingTransitions, leavingTransitions, superState, supportedEventTypes

 

Fields inherited from class org.jbpm.graph.def.GraphElement

events, exceptionHandlers, name, processDefinition

 

Constructor Summary

TaskNode()

TaskNode(java.lang.String name)

 

Method Summary
void	addTask(Task task)
boolean	completionTriggersSignal(TaskInstance taskInstance)
void	execute(ExecutionContext executionContext)           override this method to customize the node behaviour.
boolean	getCreateTasks()
long	getId()
int	getSignal()
Task	getTask(java.lang.String taskName)           is the task in this task-node with the given name or null if the given task does not exist in this node.
java.util.Set	getTasks()
java.util.Map	getTasksMap()           is a Map with the tasks, keyed by task-name or an empty map in case no tasks are present in this task-node.
void	leave(ExecutionContext executionContext, Transition transition)           called by the implementation of this node to continue execution over the given transition.
static int	parseSignal(java.lang.String text)
void	read(org.dom4j.Element element, JpdlXmlReader jpdlReader)
void	removeTaskInstanceSynchronization(Token token)
static java.lang.String	signalToString(int signal)

 

Methods inherited from class org.jbpm.graph.def.Node

addArrivingTransition, addLeavingTransition, enter, generateNextLeavingTransitionName, getAction, getArrivingTransitions, getDefaultLeavingTransition, getFullyQualifiedName, getLeavingTransition, getLeavingTransitions, getLeavingTransitionsList, getLeavingTransitionsMap, getParent, getProcessDefinition, getSuperState, getSupportedEventTypes, hasLeavingTransition, hasNoLeavingTransitions, leave, leave, removeArrivingTransition, removeLeavingTransition, reorderLeavingTransition, setAction, setName, write

 

Methods inherited from class org.jbpm.graph.def.GraphElement

addEvent, addExceptionHandler, findExceptionHandler, fireAndPropagateEvent, fireEvent, getEvent, getEvents, getExceptionHandlers, getName, getParentChain, getParents, hasEvent, hasEvents, raiseException, removeEvent, removeExceptionHandler, reorderExceptionHandler, setProcessDefinition, toString

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.jbpm.jpdl.xml.Parsable

write

 

Field Detail

SIGNAL_UNSYNCHRONIZED

public static final int SIGNAL_UNSYNCHRONIZED

execution always continues, regardless wether tasks are created or still unfinished.

See Also:

Constant Field Values

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SIGNAL_NEVER

public static final int SIGNAL_NEVER

execution never continues, regardless wether tasks are created or still unfinished.

See Also:

Constant Field Values

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SIGNAL_FIRST

public static final int SIGNAL_FIRST

proceeds execution when the first task instance is completed. when no tasks are created on entrance of this node, execution is continued.

See Also:

Constant Field Values

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SIGNAL_FIRST_WAIT

public static final int SIGNAL_FIRST_WAIT

proceeds execution when the first task instance is completed. when no tasks are created on entrance of this node, execution is continued.

See Also:

Constant Field Values

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SIGNAL_LAST

public static final int SIGNAL_LAST

proceeds execution when the last task instance is completed. when no tasks are created on entrance of this node, execution waits in the task node till tasks are created.

See Also:

Constant Field Values

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SIGNAL_LAST_WAIT

public static final int SIGNAL_LAST_WAIT

proceeds execution when the last task instance is completed. when no tasks are created on entrance of this node, execution waits in the task node till tasks are created.

See Also:

Constant Field Values

Constructor Detail

TaskNode

public TaskNode()

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TaskNode

public TaskNode(java.lang.String name)

Method Detail

parseSignal

public static int parseSignal(java.lang.String text)

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signalToString

public static java.lang.String signalToString(int signal)

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read

public void read(org.dom4j.Element element,
                 JpdlXmlReader jpdlReader)

Specified by:

read in interface Parsable

Overrides:

read in class Node

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addTask

public void addTask(Task task)

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execute

public void execute(ExecutionContext executionContext)

Description copied from class: Node

override this method to customize the node behaviour.

Overrides:

execute in class Node

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leave

public void leave(ExecutionContext executionContext,
                  Transition transition)

Description copied from class: Node

called by the implementation of this node to continue execution over the given transition.

Overrides:

leave in class Node

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completionTriggersSignal

public boolean completionTriggersSignal(TaskInstance taskInstance)

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removeTaskInstanceSynchronization

public void removeTaskInstanceSynchronization(Token token)

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getTasksMap

public java.util.Map getTasksMap()

is a Map with the tasks, keyed by task-name or an empty map in case no tasks are present in this task-node.

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getTask

public Task getTask(java.lang.String taskName)

is the task in this task-node with the given name or null if the given task does not exist in this node.

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getId

public long getId()

Overrides:

getId in class GraphElement

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getTasks

public java.util.Set getTasks()

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getSignal

public int getSignal()

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getCreateTasks

public boolean getCreateTasks()

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Version : jbpm-3.0.4