org.yawlfoundation.yawl.elements

Class YEnabledTransitionSet.TaskGroup

java.lang.Object

org.yawlfoundation.yawl.elements.YEnabledTransitionSet.TaskGroup

Enclosing class:

YEnabledTransitionSet

public class YEnabledTransitionSet.TaskGroup
extends java.lang.Object

A group of YTasks plus an identifier

Method Summary

Modifier and Type	Method and Description
boolean	add(YTask task) Add a task to this group
java.util.Set<YAtomicTask>	getAtomicTasks() Gets the set of atomic tasks in this group
int	getCompositeTaskCount()
java.lang.String	getDeferredChoiceID()
int	getEmptyTaskCount()
java.lang.String	getID()
YCompositeTask	getRandomCompositeTaskFromGroup() YAWL semantics are that if there is more than one composite task enabled by a condition, one must be non-deterministically chosen to fire.
YAtomicTask	getRandomEmptyTaskFromGroup()
boolean	hasCompositeTasks()
boolean	hasEmptyTasks()

Methods inherited from class java.lang.Object

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

Method Detail

add

public boolean add(YTask task)

Add a task to this group

Parameters:

task - the task to add

Returns:

true if the added task was not already in the group

getAtomicTasks

public java.util.Set<YAtomicTask> getAtomicTasks()

Gets the set of atomic tasks in this group

Returns:

the set of enabled atomic tasks

hasEmptyTasks

public boolean hasEmptyTasks()

Returns:

true if this group has at least one decomposition-less atomic task

getCompositeTaskCount

public int getCompositeTaskCount()

Returns:

the number of composite tasks in this group

getEmptyTaskCount

public int getEmptyTaskCount()

Returns:

the number of composite tasks in this group

hasCompositeTasks

public boolean hasCompositeTasks()

Returns:

true if this group has at least one composite task

getID

public java.lang.String getID()

Returns:

the generated group id for this group

getDeferredChoiceID

public java.lang.String getDeferredChoiceID()

Returns:

the deferred choice UID for this group (if any) - may be null

getRandomCompositeTaskFromGroup

public YCompositeTask getRandomCompositeTaskFromGroup()

YAWL semantics are that if there is more than one composite task enabled by a condition, one must be non-deterministically chosen to fire.

Returns:

null if there are no composite tasks in this group, the only composite task if there is one, or a randomly chosen one if there are several

getRandomEmptyTaskFromGroup

public YAtomicTask getRandomEmptyTaskFromGroup()

Returns:

as above, except for empty tasks instead of composites