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package java.util.concurrent; |
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/** |
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* An inteface for describing an asynchronous task that returns a result and may throw an exception. |
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* Implementors define a single method with no arguments called <tt>call</tt>. |
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* A task that returns a result and may throw an exception. |
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* Implementors define a single method with no arguments called |
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* <tt>call</tt>. |
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* |
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* <p>The <tt>Callable</tt> interface is similar to {@link Runnable}, in that |
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* both are designed for classes whose instances are potentially executed by another thread. |
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* A <tt>Runnable</tt>, however, does not return a result and cannot throw a |
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* checked exception. |
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* |
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* @fixme Should "asynchronous task" be defined somewhere? |
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* <p>The <tt>Callable</tt> interface is similar to {@link Runnable}, |
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* in that both are designed for classes whose instances are |
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* potentially executed by another thread. A <tt>Runnable</tt>, |
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* however, does not return a result and cannot throw a checked |
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* exception. |
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* |
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* @since 1.5 |
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* @see Executor |
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* @see FutureTask |
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* @spec JSR-166 |
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* @revised $Date$ |
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* @editor $Author$ |
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* @author Doug Lea |
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*/ |
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public interface Callable<V> { |
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/** |
