org.grouplens.lenskit.eval

Class EvalTarget

java.lang.Object

org.apache.tools.ant.Target

org.grouplens.lenskit.eval.EvalTarget

All Implemented Interfaces:

ListenableFuture<Object>, Future<Object>, org.apache.tools.ant.TaskContainer

public class EvalTarget
extends org.apache.tools.ant.Target
implements ListenableFuture<Object>

Targets in an evaluator project. This class extends Ant targets with the Future interface, providing access to the value of the last task executed. Non-eval tasks (standard Ant tasks) have null values.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.tools.ant.Task	lastTask
protected Future<?>	lastTaskFuture
protected SettableFuture<Object>	returnValue

Constructor Summary

Constructors

Constructor and Description
EvalTarget()

Method Summary

Modifier and Type	Method and Description
void	addListener(Runnable listener, Executor exec)
void	addTask(org.apache.tools.ant.Task task)
boolean	cancel(boolean mayInterruptIfRunning)
void	execute()
Object	get()
Object	get(long timeout, TimeUnit unit)
boolean	isCancelled()
boolean	isDone()

Methods inherited from class org.apache.tools.ant.Target

addDataType, addDependency, dependsOn, getDependencies, getDescription, getIf, getLocation, getName, getProject, getTasks, getUnless, parseDepends, performTasks, setDepends, setDescription, setIf, setIf, setLocation, setName, setProject, setUnless, setUnless, toString

Methods inherited from class java.lang.Object

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

Field Detail

returnValue

protected final SettableFuture<Object> returnValue

lastTaskFuture

protected Future<?> lastTaskFuture

lastTask

protected org.apache.tools.ant.Task lastTask

Constructor Detail

EvalTarget

public EvalTarget()

Method Detail

addTask

public void addTask(org.apache.tools.ant.Task task)

Specified by:

addTask in interface org.apache.tools.ant.TaskContainer

Overrides:

addTask in class org.apache.tools.ant.Target

execute

public void execute()
             throws org.apache.tools.ant.BuildException

Overrides:

execute in class org.apache.tools.ant.Target

Throws:

org.apache.tools.ant.BuildException

get

public Object get(long timeout,
                  TimeUnit unit)
           throws InterruptedException,
                  TimeoutException,
                  ExecutionException

Specified by:

get in interface Future<Object>

Throws:

InterruptedException

TimeoutException

ExecutionException

get

public Object get()
           throws InterruptedException,
                  ExecutionException

Specified by:

get in interface Future<Object>

Throws:

InterruptedException

ExecutionException

isDone

public boolean isDone()

Specified by:

isDone in interface Future<Object>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<Object>

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<Object>

addListener

public void addListener(Runnable listener,
                        Executor exec)

Specified by:

addListener in interface ListenableFuture<Object>