J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2006 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.management; |
| 27 | |
| 28 | |
| 29 | /** |
| 30 | * Describes an argument of an operation exposed by an MBean. |
| 31 | * Instances of this class are immutable. Subclasses may be mutable |
| 32 | * but this is not recommended. |
| 33 | * |
| 34 | * @since 1.5 |
| 35 | */ |
| 36 | public class MBeanParameterInfo extends MBeanFeatureInfo implements Cloneable { |
| 37 | |
| 38 | /* Serial version */ |
| 39 | static final long serialVersionUID = 7432616882776782338L; |
| 40 | |
| 41 | /* All zero-length arrays are interchangeable. */ |
| 42 | static final MBeanParameterInfo[] NO_PARAMS = new MBeanParameterInfo[0]; |
| 43 | |
| 44 | /** |
| 45 | * @serial The type or class name of the data. |
| 46 | */ |
| 47 | private final String type; |
| 48 | |
| 49 | |
| 50 | /** |
| 51 | * Constructs an <CODE>MBeanParameterInfo</CODE> object. |
| 52 | * |
| 53 | * @param name The name of the data |
| 54 | * @param type The type or class name of the data |
| 55 | * @param description A human readable description of the data. Optional. |
| 56 | */ |
| 57 | public MBeanParameterInfo(String name, |
| 58 | String type, |
| 59 | String description) { |
| 60 | this(name, type, description, (Descriptor) null); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Constructs an <CODE>MBeanParameterInfo</CODE> object. |
| 65 | * |
| 66 | * @param name The name of the data |
| 67 | * @param type The type or class name of the data |
| 68 | * @param description A human readable description of the data. Optional. |
| 69 | * @param descriptor The descriptor for the operation. This may be null |
| 70 | * which is equivalent to an empty descriptor. |
| 71 | * |
| 72 | * @since 1.6 |
| 73 | */ |
| 74 | public MBeanParameterInfo(String name, |
| 75 | String type, |
| 76 | String description, |
| 77 | Descriptor descriptor) { |
| 78 | super(name, description, descriptor); |
| 79 | |
| 80 | this.type = type; |
| 81 | } |
| 82 | |
| 83 | |
| 84 | /** |
| 85 | * <p>Returns a shallow clone of this instance. |
| 86 | * The clone is obtained by simply calling <tt>super.clone()</tt>, |
| 87 | * thus calling the default native shallow cloning mechanism |
| 88 | * implemented by <tt>Object.clone()</tt>. |
| 89 | * No deeper cloning of any internal field is made.</p> |
| 90 | * |
| 91 | * <p>Since this class is immutable, cloning is chiefly of |
| 92 | * interest to subclasses.</p> |
| 93 | */ |
| 94 | public Object clone () { |
| 95 | try { |
| 96 | return super.clone() ; |
| 97 | } catch (CloneNotSupportedException e) { |
| 98 | // should not happen as this class is cloneable |
| 99 | return null; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Returns the type or class name of the data. |
| 105 | * |
| 106 | * @return the type string. |
| 107 | */ |
| 108 | public String getType() { |
| 109 | return type; |
| 110 | } |
| 111 | |
| 112 | public String toString() { |
| 113 | return |
| 114 | getClass().getName() + "[" + |
| 115 | "description=" + getDescription() + ", " + |
| 116 | "name=" + getName() + ", " + |
| 117 | "type=" + getType() + ", " + |
| 118 | "descriptor=" + getDescriptor() + |
| 119 | "]"; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Compare this MBeanParameterInfo to another. |
| 124 | * |
| 125 | * @param o the object to compare to. |
| 126 | * |
| 127 | * @return true if and only if <code>o</code> is an MBeanParameterInfo such |
| 128 | * that its {@link #getName()}, {@link #getType()}, |
| 129 | * {@link #getDescriptor()}, and {@link |
| 130 | * #getDescription()} values are equal (not necessarily identical) |
| 131 | * to those of this MBeanParameterInfo. |
| 132 | */ |
| 133 | public boolean equals(Object o) { |
| 134 | if (o == this) |
| 135 | return true; |
| 136 | if (!(o instanceof MBeanParameterInfo)) |
| 137 | return false; |
| 138 | MBeanParameterInfo p = (MBeanParameterInfo) o; |
| 139 | return (p.getName().equals(getName()) && |
| 140 | p.getType().equals(getType()) && |
| 141 | p.getDescription().equals(getDescription()) && |
| 142 | p.getDescriptor().equals(getDescriptor())); |
| 143 | } |
| 144 | |
| 145 | public int hashCode() { |
| 146 | return getName().hashCode() ^ getType().hashCode(); |
| 147 | } |
| 148 | } |