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67 lines
1.6 KiB
67 lines
1.6 KiB
/*
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* Copyright (c) 2007, 2009, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.nio.channels;
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/**
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* A handler for consuming the result of an asynchronous I/O operation.
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*
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* <p> The asynchronous channels defined in this package allow a completion
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* handler to be specified to consume the result of an asynchronous operation.
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* The {@link #completed completed} method is invoked when the I/O operation
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* completes successfully. The {@link #failed failed} method is invoked if the
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* I/O operations fails. The implementations of these methods should complete
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* in a timely manner so as to avoid keeping the invoking thread from dispatching
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* to other completion handlers.
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*
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* @param <V> The result type of the I/O operation
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* @param <A> The type of the object attached to the I/O operation
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*
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* @since 1.7
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*/
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public interface CompletionHandler<V,A> {
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/**
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* Invoked when an operation has completed.
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*
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* @param result
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* The result of the I/O operation.
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* @param attachment
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* The object attached to the I/O operation when it was initiated.
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*/
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void completed(V result, A attachment);
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/**
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* Invoked when an operation fails.
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*
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* @param exc
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* The exception to indicate why the I/O operation failed
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* @param attachment
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* The object attached to the I/O operation when it was initiated.
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*/
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void failed(Throwable exc, A attachment);
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}
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