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Java > Open Source Codes > org > objectweb > jorm > type > lib > PTypePAAH


1 /**
2  * JORM: an implementation of a generic mapping system for persistent Java
3  * objects. Two mapping are supported: to RDBMS and to binary files.
4  * Copyright (C) 2001-2003 France Telecom R&D - INRIA
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  * Contact: jorm-team@objectweb.org
21  *
22  */
23
24 package org.objectweb.jorm.type.lib;
25
26 import org.objectweb.jorm.type.api.PType;
27 import org.objectweb.jorm.type.api.PTypeSpace;
28
29 /**
30  * This implementation of the PTypeconsiders that this is the PType which
31  * conatains its ancestor. The PAAH letters mean PType As Ancestor Holder.
32  *
33  * @author <A HREF="mailto:sebastien.chassande@inrialpes.fr><b>
34  * Sebastien Chassande-Barrioz
35  * </b></A>
36  */
37
38 public class PTypePAAH extends PType {
39     protected PType superTypes[] = null;
40
41     /**
42      * It constructs the types that represent JORM classes.
43      * @param classname The name of the class for which a PType must be
44      * constructed.
45      * @param typespace The type space to which the constructed PType
46      * belongs.
47      * @param supertypes The super types of that class.
48      */
49     public PTypePAAH(String JavaDoc classname, PTypeSpace typespace,
50                      PType[] supertypes) {
51         super(classname, typespace);
52         superTypes = supertypes;
53     }
54
55     /**
56      * It retrieves the PType directly inherited by a PType representing a
57      * JORM class.
58      * @return The array of directly inherited PType.
59      */
60     public PType[] getInheritedPType() {
61         return superTypes;
62     }
63
64     public boolean isDirectSubType(PType parent) {
65         for(int i=0; i<superTypes.length; i++) {
66             if (parent == superTypes[i]) {
67                 return true;
68             }
69         }
70         return false;
71     }
72
73     /**
74      * Verifies if a PType belongs to those inherited by this PType.
75      */
76     public boolean belongsToInherited(PType pt) {
77         if (superTypes == null)
78             return false;
79         for (int i = 0; i < superTypes.length; i++)
80             if (pt == superTypes[i])
81                 return true;
82         for (int i = 0; i < superTypes.length; i++)
83             if (((PTypePAAH) superTypes[i]).belongsToInherited(pt))
84                 return true;
85         return false;
86     }
87 }
88
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