mirror of git://gcc.gnu.org/git/gcc.git
37 lines
1.1 KiB
Java
37 lines
1.1 KiB
Java
/*
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* Written by Doug Lea with assistance from members of JCP JSR-166
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* Expert Group and released to the public domain, as explained at
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* http://creativecommons.org/licenses/publicdomain
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*/
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package java.util.concurrent;
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/**
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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
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* java.lang.Runnable}, in that both are designed for classes whose
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* instances are potentially executed by another thread. A
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* <tt>Runnable</tt>, however, does not return a result and cannot
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* throw a checked exception.
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*
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* <p> The {@link Executors} class contains utility methods to
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* convert from other common forms to <tt>Callable</tt> classes.
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*
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* @see Executor
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* @since 1.5
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* @author Doug Lea
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* @param <V> the result type of method <tt>call</tt>
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*/
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public interface Callable<V> {
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/**
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* Computes a result, or throws an exception if unable to do so.
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*
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* @return computed result
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* @throws Exception if unable to compute a result
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*/
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V call() throws Exception;
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}
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