01: /*
02: * JBoss, Home of Professional Open Source
03: * Copyright 2005, JBoss Inc., and individual contributors as indicated
04: * by the @authors tag. See the copyright.txt in the distribution for a
05: * full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22:
23: package org.jboss.profiler.jvmti;
24:
25: import java.lang.ref.WeakReference;
26:
27: /**
28: * Used to return quantity of instances and bytes per class
29: * */
30: public class InventoryDataPoint implements Comparable {
31:
32: public InventoryDataPoint(Class clazz) {
33: this .clazz = new WeakReference(clazz);
34: }
35:
36: public InventoryDataPoint(Class clazz, int instances) {
37: this .clazz = new WeakReference(clazz);
38: this .instances = instances;
39: }
40:
41: WeakReference clazz;
42: int instances;
43: long bytes;
44:
45: public long getBytes() {
46: return bytes;
47: }
48:
49: public void setBytes(long bytes) {
50: this .bytes = bytes;
51: }
52:
53: public Class getClazz() {
54: return (Class) clazz.get();
55: }
56:
57: public void setClazz(Class clazz) {
58: this .clazz = new WeakReference(clazz);
59: }
60:
61: public int getInstances() {
62: return instances;
63: }
64:
65: public void setInstances(int instances) {
66: this .instances = instances;
67: }
68:
69: public int compareTo(Object o) {
70: InventoryDataPoint that = (InventoryDataPoint) o;
71: long result = that.bytes - this .bytes;
72: if (result == 0)
73: return 0;
74: else if (result > 0)
75: return 1;
76: else
77: return -1;
78: }
79:
80: }
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