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Java > Open Source Codes > soot > tagkit > Host


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 1997-1999 Raja Vallee-Rai
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 /*
21  * Modified by the Sable Research Group and others 1997-1999.
22  * See the 'credits' file distributed with Soot for the complete list of
23  * contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
24  */
25
26 package soot.tagkit;
27
28 import soot.*;
29
30 import java.util.*;
31
32 // implemented by SootClass, SootField, SootMethod, Scene
33
34 /** A "taggable" object.
35  * Implementing classes can have arbitrary labelled data attached to them.
36  *
37  * Currently, only classes, fields, methods and the Scene are Hosts.
38  *
39  * One example of a tag would be to store Boolean values, associated with
40  * array accesses, indicating whether bounds checks can be omitted.
41  *
42  * @see Tag
43  */
44 public interface Host
45 {
46     /** Gets a list of tags associated with the current object. */
47     public List getTags();
48     
49     /** Returns the tag with the given name. */
50     public Tag getTag(String JavaDoc aName);
51
52   /** Adds a tag. */
53     public void addTag(Tag t);
54
55     /** Removes the first tag with the given name. */
56     public void removeTag(String JavaDoc name);
57    
58     /** Returns true if this host has a tag with the given name. */
59     public boolean hasTag(String JavaDoc aName);
60
61     /** Removes all the tags from this host. */
62     public void removeAllTags();
63
64     /** Adds all the tags from h to this host. */
65     public void addAllTagsOf( Host h );
66 }
67
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