1*fb3fb4f3Stomee /*
2*fb3fb4f3Stomee  * CDDL HEADER START
3*fb3fb4f3Stomee  *
4*fb3fb4f3Stomee  * The contents of this file are subject to the terms of the
5*fb3fb4f3Stomee  * Common Development and Distribution License (the "License").
6*fb3fb4f3Stomee  * You may not use this file except in compliance with the License.
7*fb3fb4f3Stomee  *
8*fb3fb4f3Stomee  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*fb3fb4f3Stomee  * or http://www.opensolaris.org/os/licensing.
10*fb3fb4f3Stomee  * See the License for the specific language governing permissions
11*fb3fb4f3Stomee  * and limitations under the License.
12*fb3fb4f3Stomee  *
13*fb3fb4f3Stomee  * When distributing Covered Code, include this CDDL HEADER in each
14*fb3fb4f3Stomee  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*fb3fb4f3Stomee  * If applicable, add the following below this CDDL HEADER, with the
16*fb3fb4f3Stomee  * fields enclosed by brackets "[]" replaced with your own identifying
17*fb3fb4f3Stomee  * information: Portions Copyright [yyyy] [name of copyright owner]
18*fb3fb4f3Stomee  *
19*fb3fb4f3Stomee  * CDDL HEADER END
20*fb3fb4f3Stomee  */
21*fb3fb4f3Stomee 
22*fb3fb4f3Stomee /*
23*fb3fb4f3Stomee  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24*fb3fb4f3Stomee  * Use is subject to license terms.
25*fb3fb4f3Stomee  *
26*fb3fb4f3Stomee  * ident	"%Z%%M%	%I%	%E% SMI"
27*fb3fb4f3Stomee  */
28*fb3fb4f3Stomee package org.opensolaris.os.dtrace;
29*fb3fb4f3Stomee 
30*fb3fb4f3Stomee import java.beans.*;
31*fb3fb4f3Stomee 
32*fb3fb4f3Stomee /**
33*fb3fb4f3Stomee  * A {@code long} value aggregated by the DTrace {@code max()} action.
34*fb3fb4f3Stomee  * <p>
35*fb3fb4f3Stomee  * Immutable.  Supports persistence using {@link java.beans.XMLEncoder}.
36*fb3fb4f3Stomee  *
37*fb3fb4f3Stomee  * @see Aggregation
38*fb3fb4f3Stomee  * @author Tom Erickson
39*fb3fb4f3Stomee  */
40*fb3fb4f3Stomee public final class MaxValue extends AbstractAggregationValue {
41*fb3fb4f3Stomee     static final long serialVersionUID = -7761988758448759253L;
42*fb3fb4f3Stomee 
43*fb3fb4f3Stomee     static {
44*fb3fb4f3Stomee 	try {
45*fb3fb4f3Stomee 	    BeanInfo info = Introspector.getBeanInfo(MaxValue.class);
46*fb3fb4f3Stomee 	    PersistenceDelegate persistenceDelegate =
47*fb3fb4f3Stomee 		    new DefaultPersistenceDelegate(
48*fb3fb4f3Stomee 		    new String[] {"value"});
49*fb3fb4f3Stomee 	    BeanDescriptor d = info.getBeanDescriptor();
50*fb3fb4f3Stomee 	    d.setValue("persistenceDelegate", persistenceDelegate);
51*fb3fb4f3Stomee 	} catch (IntrospectionException e) {
52*fb3fb4f3Stomee 	    System.out.println(e);
53*fb3fb4f3Stomee 	}
54*fb3fb4f3Stomee     }
55*fb3fb4f3Stomee 
56*fb3fb4f3Stomee     /**
57*fb3fb4f3Stomee      * Creates a value aggregated by the DTrace {@code max()} action.
58*fb3fb4f3Stomee      * Supports XML persistence.
59*fb3fb4f3Stomee      *
60*fb3fb4f3Stomee      * @param v maximum of the aggregated values
61*fb3fb4f3Stomee      */
62*fb3fb4f3Stomee     public
MaxValue(long v)63*fb3fb4f3Stomee     MaxValue(long v)
64*fb3fb4f3Stomee     {
65*fb3fb4f3Stomee 	super(v);
66*fb3fb4f3Stomee     }
67*fb3fb4f3Stomee 
68*fb3fb4f3Stomee     // Needed to support XML persistence since XMLDecoder cannot find
69*fb3fb4f3Stomee     // the public method of the non-public superclass.
70*fb3fb4f3Stomee 
71*fb3fb4f3Stomee     /**
72*fb3fb4f3Stomee      * Gets the maximum of the aggregated values.
73*fb3fb4f3Stomee      *
74*fb3fb4f3Stomee      * @return the maximum of the aggregated values
75*fb3fb4f3Stomee      */
76*fb3fb4f3Stomee     public Long
getValue()77*fb3fb4f3Stomee     getValue()
78*fb3fb4f3Stomee     {
79*fb3fb4f3Stomee 	return (Long)super.getValue();
80*fb3fb4f3Stomee     }
81*fb3fb4f3Stomee }
82