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1   /*
2    * Copyright  2000-2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License"); 
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License. 
15   *
16   */
17  package org.apache.bcel.generic;
18  
19  /*** 
20   * MONITORENTER - Enter monitor for object
21   * <PRE>Stack: ..., objectref -&gt; ...</PRE>
22   *
23   * @version $Id: MONITORENTER.java 386056 2006-03-15 11:31:56Z tcurdt $
24   * @author  <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
25   */
26  public class MONITORENTER extends Instruction implements ExceptionThrower, StackConsumer {
27  
28      public MONITORENTER() {
29          super(org.apache.bcel.Constants.MONITORENTER, (short) 1);
30      }
31  
32  
33      public Class[] getExceptions() {
34          return new Class[] {
35              org.apache.bcel.ExceptionConstants.NULL_POINTER_EXCEPTION
36          };
37      }
38  
39  
40      /***
41       * Call corresponding visitor method(s). The order is:
42       * Call visitor methods of implemented interfaces first, then
43       * call methods according to the class hierarchy in descending order,
44       * i.e., the most specific visitXXX() call comes last.
45       *
46       * @param v Visitor object
47       */
48      public void accept( Visitor v ) {
49          v.visitExceptionThrower(this);
50          v.visitStackConsumer(this);
51          v.visitMONITORENTER(this);
52      }
53  }