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import java.util.concurrent.locks.*; |
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/** |
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* Base class for cancellable actions running in the Executor |
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* framework. In addition to serving as a standalone class, this |
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* provides <tt>protected</tt> functionality that may be useful when |
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* creating customized task classes. |
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* Base class for {@link Cancellable} {@link java.lang.Runnable} |
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* actions within the {@link Executor} framework. In addition to |
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* serving as a standalone class, this provides <tt>protected</tt> |
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* functionality that may be useful when creating customized task |
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* classes. |
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* @since 1.5 |
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* @author Doug Lea |
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*/ |
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* Creates a new CancellableTask without a runnable action, which |
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* must be set using <tt>setRunnable</tt> before use. This is |
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* intended for use in subclasses that must complete superclass |
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* construction beofre establishing the runnable action. |
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* construction before establishing the runnable action. |
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*/ |
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protected CancellableTask() { |
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} |
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* result. |
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* |
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* @param timeout the maximum time to wait |
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* @param granularity the time unit of the timeout argument |
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* @param unit the time unit of the timeout argument |
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* @return computed result |
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* @throws ExecutionException if underlying computation threw an |
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* exception |
