org.schmant.run
Class ManualTaskDependency

java.lang.Object
  java.util.Observable
      org.schmant.run.ManualTaskDependency

All Implemented Interfaces:

TaskDependency

public class ManualTaskDependency
extends Observable
implements TaskDependency

This is a task dependency that is handled manually. Calling setCompleted() satisfies the dependency.

Since:

0.5

Author:

Karl Gustafsson

Constructor Summary

ManualTaskDependency()

Method Summary

Observable	getDependencyObservable() Observable that will fire with the dependency as argument when all dependencies are satisfied.
Lock	getSatisfiedStateLock() Get the Lock that protects the dependency's satisfied property.
boolean	isSatisfied() Is this dependency satisfied?
void	setCompleted() This satisfies the dependency.
String	toString()

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

ManualTaskDependency

public ManualTaskDependency()

Method Detail

setCompleted

public void setCompleted()

This satisfies the dependency.

getDependencyObservable

public Observable getDependencyObservable()

Description copied from interface: TaskDependency

Observable that will fire with the dependency as argument when all dependencies are satisfied.

Implementation note: The thread firing an event must own the satisfied state lock on the task dependency object.

Specified by:

getDependencyObservable in interface TaskDependency

Returns:

An Observable to observe.

isSatisfied

public boolean isSatisfied()

Description copied from interface: TaskDependency

Is this dependency satisfied?

Implementation note: This method should be protected by the same lock that can be retrieved by calling TaskDependency.getSatisfiedStateLock().

Specified by:

isSatisfied in interface TaskDependency

Returns:

true if the dependency is satisfied.

getSatisfiedStateLock

public Lock getSatisfiedStateLock()

Description copied from interface: TaskDependency

Get the Lock that protects the dependency's satisfied property. This lock must be locked before the dependency's satisfied state can be update.

An external class can lock this to ensure that the satisfied state is not updated while it holds the lock.

Specified by:

getSatisfiedStateLock in interface TaskDependency

Returns:

The lock used to protect the satisfied state.

See Also:

TaskDependency.isSatisfied()

toString

public String toString()

Overrides:

toString in class Object