01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.components.thread;
18:
19: /**
20: * Extension to add queue size reporting
21: *
22: * @author <a href="mailto:giacomo.at.apache.org">Giacomo Pati</a>
23: * @version CVS $Id: Queue.java 56702 2004-11-05 22:52:05Z giacomo $
24: *
25: * @see EDU.oswego.cs.dl.util.concurrent.Channel
26: */
27: public interface Queue extends EDU.oswego.cs.dl.util.concurrent.Channel {
28: //~ Methods ----------------------------------------------------------------
29:
30: /**
31: * get the current queue size
32: *
33: * @return current size of queue. If the size of the queue is not
34: * maintained by an implementation -1 should be returned.
35: */
36: int getQueueSize();
37: }
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