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comparison agent/src/share/classes/sun/jvm/hotspot/memory/LoaderConstraintTable.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.memory;
26
27 import java.util.*;
28 import sun.jvm.hotspot.debugger.*;
29 import sun.jvm.hotspot.oops.*;
30 import sun.jvm.hotspot.types.*;
31 import sun.jvm.hotspot.runtime.*;
32 import sun.jvm.hotspot.utilities.*;
33
34 public class LoaderConstraintTable extends TwoOopHashtable {
35 static {
36 VM.registerVMInitializedObserver(new Observer() {
37 public void update(Observable o, Object data) {
38 initialize(VM.getVM().getTypeDataBase());
39 }
40 });
41 }
42
43 private static synchronized void initialize(TypeDataBase db) {
44 Type type = db.lookupType("LoaderConstraintTable");
45 nofBuckets = db.lookupIntConstant("LoaderConstraintTable::_nof_buckets").intValue();
46 }
47
48 // Fields
49 private static int nofBuckets;
50
51 // Accessors
52 public static int getNumOfBuckets() {
53 return nofBuckets;
54 }
55
56 public LoaderConstraintTable(Address addr) {
57 super(addr);
58 }
59
60 // this is overriden here so that Hashtable.bucket will return
61 // object of LoaderConstraintEntry.class
62 protected Class getHashtableEntryClass() {
63 return LoaderConstraintEntry.class;
64 }
65 }