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Java > Open Source Codes > com > sun > org > apache > bcel > internal > generic > LoadClass


1 package com.sun.org.apache.bcel.internal.generic;
2
3 /* ====================================================================
4  * The Apache Software License, Version 1.1
5  *
6  * Copyright (c) 2001 The Apache Software Foundation. All rights
7  * reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution,
22  * if any, must include the following acknowledgment:
23  * "This product includes software developed by the
24  * Apache Software Foundation (http://www.apache.org/)."
25  * Alternately, this acknowledgment may appear in the software itself,
26  * if and wherever such third-party acknowledgments normally appear.
27  *
28  * 4. The names "Apache" and "Apache Software Foundation" and
29  * "Apache BCEL" must not be used to endorse or promote products
30  * derived from this software without prior written permission. For
31  * written permission, please contact apache@apache.org.
32  *
33  * 5. Products derived from this software may not be called "Apache",
34  * "Apache BCEL", nor may "Apache" appear in their name, without
35  * prior written permission of the Apache Software Foundation.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals on behalf of the Apache Software Foundation. For more
53  * information on the Apache Software Foundation, please see
54  * <http://www.apache.org/>.
55  */
56
57 /**
58  * Denotes that an instruction may start the process of loading and resolving
59  * the referenced class in the Virtual Machine.
60  *
61  * @version $Id: LoadClass.java,v 1.1.1.1 2001/10/29 20:00:23 jvanzyl Exp $
62  * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
63  */
64 public interface LoadClass {
65   /**
66    * Returns the ObjectType of the referenced class or interface
67    * that may be loaded and resolved.
68    * @return object type that may be loaded or null if a primitive is
69    * referenced
70    */
71   public ObjectType getLoadClassType(ConstantPoolGen cpg);
72     
73   /**
74    * Returns the type associated with this instruction.
75    * LoadClass instances are always typed, but this type
76    * does not always refer to the type of the class or interface
77    * that it possibly forces to load. For example, GETFIELD would
78    * return the type of the field and not the type of the class
79    * where the field is defined.
80    * If no class is forced to be loaded, <B>null</B> is returned.
81    * An example for this is an ANEWARRAY instruction that creates
82    * an int[][].
83    * @see #getLoadClassType(ConstantPoolGen)
84    */
85   public Type getType(ConstantPoolGen cpg);
86 }
87
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