1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.common.support;
21
22 import org.apache.mina.common.IoSession;
23 import org.apache.mina.common.WriteFuture;
24
25 /**
26 * A default implementation of {@link WriteFuture}.
27 *
28 * @author The Apache Directory Project (mina-dev@directory.apache.org)
29 * @version $Rev: 599822 $, $Date: 2007-11-30 22:54:07 +0900 (Fri, 30 Nov 2007) $
30 */
31 public class DefaultWriteFuture extends DefaultIoFuture implements WriteFuture {
32 /**
33 * Returns a new {@link DefaultWriteFuture} which is already marked as 'written'.
34 */
35 public static WriteFuture newWrittenFuture(IoSession session) {
36 DefaultWriteFuture unwrittenFuture = new DefaultWriteFuture(session);
37 unwrittenFuture.setWritten(true);
38 return unwrittenFuture;
39 }
40
41 /**
42 * Returns a new {@link DefaultWriteFuture} which is already marked as 'not written'.
43 */
44 public static WriteFuture newNotWrittenFuture(IoSession session) {
45 DefaultWriteFuture unwrittenFuture = new DefaultWriteFuture(session);
46 unwrittenFuture.setWritten(false);
47 return unwrittenFuture;
48 }
49
50 /**
51 * Creates a new instance.
52 */
53 public DefaultWriteFuture(IoSession session) {
54 super(session);
55 }
56
57 /**
58 * Creates a new instance which uses the specified object as a lock.
59 */
60 public DefaultWriteFuture(IoSession session, Object lock) {
61 super(session, lock);
62 }
63
64 public boolean isWritten() {
65 if (isReady()) {
66 return (Boolean) getValue();
67 } else {
68 return false;
69 }
70 }
71
72 public void setWritten(boolean written) {
73 setValue(written ? Boolean.TRUE : Boolean.FALSE);
74 }
75 }