Package it.tidalwave.util

Class Task<T,E extends Throwable>

java.lang.Object

it.tidalwave.util.Task<T,E>

Direct Known Subclasses:

SimpleTask

public abstract class Task<T,E extends Throwable>
extends Object

A class which encapsulates a task.

Author:

Fabrizio Giudici

Status: experimental API

Constructor Summary

Constructors

Constructor	Description
Task()	Creates a new Task.
Task(String name)	Creates a new Task with the given name.

Method Summary

Modifier and Type	Method	Description
static <T> Task<T,Exception>	ofCallable(Callable<? extends T> callable)	Creates a Task from a Callable.
static Task<Void,Throwable>	ofCallback(Callback callback)	Creates a Task from a Callback.
static Task<Void,RuntimeException>	ofRunnable(Runnable runnable)	Creates a Task from a Runnable.
abstract T	run()	The method that must contain the body of the Task.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Task

public Task()

Creates a new Task.

Task

public Task(@Nonnull
 String name)

Creates a new Task with the given name.

Parameters:

name - the name

Method Details

run

public abstract T run()
               throws E

The method that must contain the body of the Task.

Returns:

the computed value

Throws:

E - in case of error

toString

@Nonnull
public String toString()

Overrides:

toString in class Object

ofRunnable

@Nonnull
public static Task<Void,RuntimeException> ofRunnable(@Nonnull
 Runnable runnable)

Creates a Task from a Runnable.

Parameters:

runnable - the wrapped object

Returns:

the Task

Since:

3.2-ALPHA-1 (was previously on Task8

ofCallable

@Nonnull
public static <T> Task<T,Exception> ofCallable(@Nonnull
 Callable<? extends T> callable)

Creates a Task from a Callable.

Type Parameters:

T - the return type of the callable

Parameters:

callable - the wrapped object

Returns:

the Task

Since:

3.2-ALPHA-1 (was previously on Task8

ofCallback

@Nonnull
public static Task<Void,Throwable> ofCallback(@Nonnull
 Callback callback)

Creates a Task from a Callback.

Parameters:

callback - the wrapped object

Returns:

the Task

Since:

3.2-ALPHA-1 (was previously on Task8