java.util.concurrent
public abstract class
public abstract class
java.util.concurrent.AbstractExecutorService
| java.lang.Object | ||
| java.util.concurrent.AbstractExecutorService | ExecutorService | |
Provides default implementation of ExecutorService execution methods. This class implements the submit, invokeAny and invokeAll methods using the default FutureTask class provided in this package. For example, the implementation of submit(Runnable) creates an associated FutureTask that is executed and returned. Subclasses overriding these methods to use different Future implementations should do so consistently for each of these methods.
Known Direct Subclasses
Known Indirect Subclasses
Summary
Public Constructors
| AbstractExecutorService() |
Public Methods
| List | invokeAll(Collection tasks, long timeout, TimeUnit unit) | ||||
| Executes the given tasks, returning their results when all complete or the timeout expires, whichever happens first. | |||||
| List | invokeAll(Collection tasks) | ||||
| Executes the given tasks, returning their results when all complete. | |||||
| T | invokeAny(Collection tasks, long timeout, TimeUnit unit) | ||||
| Executes the given tasks, returning the result of one that has completed successfully (i.e., without throwing an exception), if any do before the given timeout elapses. | |||||
| T | invokeAny(Collection tasks) | ||||
| Executes the given tasks, returning the result of one that has completed successfully (i.e., without throwing an exception), if any do. | |||||
| Future | submit(Runnable task) | ||||
| Submits a Runnable task for execution and returns a Future representing that task. | |||||
| Future | submit(Callable task) | ||||
| Submits a value-returning task for execution and returns a Future representing the pending results of the task. | |||||
| Future | submit(Runnable task, T result) | ||||
| Submits a Runnable task for execution and returns a Future representing that task that will upon completion return the given result | |||||
Methods inherited
from class
java.lang.Object
Methods inherited
from interface
java.util.concurrent.ExecutorService
Methods inherited
from interface
java.util.concurrent.Executor
Details
Public Constructors
public AbstractExecutorService()
Public Methods
public List invokeAll(Collection tasks, long timeout, TimeUnit unit)
Executes the given tasks, returning their results
when all complete or the timeout expires, whichever happens first.
Upon return, tasks that have not completed are cancelled.
Note that a completed task could have
terminated either normally or by throwing an exception.
The results of this method are undefined if the given
collection is modified while this operation is in progress.
Throws
| InterruptedException |
|---|
public List invokeAll(Collection tasks)
Executes the given tasks, returning their results
when all complete.
Note that a completed task could have
terminated either normally or by throwing an exception.
The results of this method are undefined if the given
collection is modified while this operation is in progress.
Throws
| InterruptedException |
|---|
public T invokeAny(Collection tasks, long timeout, TimeUnit unit)
Executes the given tasks, returning the result
of one that has completed successfully (i.e., without throwing
an exception), if any do before the given timeout elapses.
Upon normal or exceptional return, tasks that have not
completed are cancelled.
The results of this method are undefined if the given
collection is modified while this operation is in progress.
public T invokeAny(Collection tasks)
Executes the given tasks, returning the result
of one that has completed successfully (i.e., without throwing
an exception), if any do. Upon normal or exceptional return,
tasks that have not completed are cancelled.
The results of this method are undefined if the given
collection is modified while this operation is in progress.
public Future submit(Runnable task)
Submits a Runnable task for execution and returns a Future
representing that task.
public Future submit(Callable task)
Submits a value-returning task for execution and returns a Future
representing the pending results of the task.
If you would like to immediately block waiting for a task, you can use constructions of the form result = exec.submit(aCallable).get();
Note: The Executors class includes a set of methods that can convert some other common closure-like objects, for example, PrivilegedAction to Callable form so they can be submitted.