Callable (Java 2 Platform SE 5.0) (original) (raw)

java.util.concurrent

Interface Callable

Type Parameters:

V - the result type of method call

public interface Callable

A task that returns a result and may throw an exception. Implementors define a single method with no arguments calledcall.

The Callable interface is similar to Runnable, in that both are designed for classes whose instances are potentially executed by another thread. ARunnable, however, does not return a result and cannot throw a checked exception.

The Executors class contains utility methods to convert from other common forms to Callable classes.

Since:

1.5

See Also:

Executor

Method Summary
V	call() Computes a result, or throws an exception if unable to do so.

Method Detail

call

V call() throws Exception

Computes a result, or throws an exception if unable to do so.

Returns:

computed result

Throws:

[Exception](../../../java/lang/Exception.html "class in java.lang") - if unable to compute a result

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.