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    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * 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   **/
    18  package org.codehaus.activemq.management;
    19
    20  import javax.jms.Message;
    21
    22  /***
    23   * A simple interface to allow statistics gathering to be easily switched out
    24   * for performance reasons.
    25   *
    26   * @version $Revision: 1.1 $
    27   */
    28  public interface JMSDestinationStats {
    29      /***
    30       * On startup sets the pending message count
    31       *
    32       * @param count
    33       */
    34      public void setPendingMessageCountOnStartup(long count);
    35
    36      /***
    37       * On a message send to this destination, update the producing stats
    38       *
    39       * @param message
    40       */
    41      public void onMessageSend(Message message);
    42
    43      /***
    44       * On a consume from this destination, updates the consumed states
    45       */
    46      public void onMessageAck();
    47  }