MBeanInvoker


1   /*
2    * Copyright (C) MX4J.
3    * All rights reserved.
4    *
5    * This software is distributed under the terms of the MX4J License version 1.0.
6    * See the terms of the MX4J License in the documentation provided with this software.
7    */
8   
9   package mx4j.server;
10  
11  import javax.management.Attribute  ;
12  import javax.management.AttributeNotFoundException  ;
13  import javax.management.InvalidAttributeValueException  ;
14  import javax.management.MBeanException  ;
15  import javax.management.ReflectionException  ;
16  
17  /**
18   * Invokes methods on standard MBeans. <br />
19   * Actually three implementations are available: two that uses reflection and one that generates on-the-fly a customized
20   * MBeanInvoker per each MBean and that is implemented with direct calls via bytecode generation. <br />
21   * The default is the direct call version, that uses the <a HREF="http://jakarta.apache.org/bcel">BCEL</a> to generate
22   * the required bytecode on-the-fly. <br>
23   * In the future may be the starting point for MBean interceptors.
24   *
25   * @author <a HREF="mailto:biorn_steedom@users.sourceforge.net">Simone Bordet</a>
26   * @version $Revision: 1.4 $
27   */
28  public interface MBeanInvoker
29  {
30      /**
31       * Invokes the specified operation on the MBean instance
32       */
33      public Object   invoke(MBeanMetaData metadata, String   method, String  [] signature, Object  [] args) throws MBeanException  , ReflectionException  ;
34      /**
35       * Returns the value of the specified attribute.
36       */
37      public Object   getAttribute(MBeanMetaData metadata, String   attribute) throws MBeanException  , AttributeNotFoundException  , ReflectionException  ;
38      /**
39       * Sets the value of the specified attribute.
40       */
41      public void setAttribute(MBeanMetaData metadata, Attribute   attribute) throws MBeanException  , AttributeNotFoundException  , InvalidAttributeValueException  , ReflectionException  ;
42  }
43
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