Java™ Platform
Standard Ed. 6

java.util.concurrent
Interface Callable<V>

Type Parameters:
V - the result type of method call
All Known Subinterfaces:
JavaCompiler.CompilationTask

public interface Callable<V>

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

The Callable interface is similar to Runnable, in that both are designed for classes whose instances are potentially executed by another thread. A Runnable, 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 - if unable to compute a result

Java™ Platform
Standard Ed. 6

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

Copyright 2008 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.


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