- /*
- * @(#)Callable.java 1.5 04/01/12
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package java.util.concurrent;
-
- /**
- * A task that returns a result and may throw an exception.
- * Implementors define a single method with no arguments called
- * <tt>call</tt>.
- *
- * <p>The <tt>Callable</tt> interface is similar to {@link
- * java.lang.Runnable}, in that both are designed for classes whose
- * instances are potentially executed by another thread. A
- * <tt>Runnable</tt>, however, does not return a result and cannot
- * throw a checked exception.
- *
- * <p> The {@link Executors} class contains utility methods to
- * convert from other common forms to <tt>Callable</tt> classes.
- *
- * @see Executor
- * @since 1.5
- * @author Doug Lea
- * @param <V> the result type of method <tt>call</tt>
- */
- public interface Callable<V> {
- /**
- * Computes a result, or throws an exception if unable to do so.
- *
- * @return computed result
- * @throws Exception if unable to compute a result
- */
- V call() throws Exception;
- }