| /* |
| * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package javax.management.openmbean; |
| |
| |
| // java import |
| // |
| import java.util.Collection; |
| |
| // jmx import |
| // |
| |
| |
| /** |
| * The <tt>CompositeData</tt> interface specifies the behavior of a specific type of complex <i>open data</i> objects |
| * which represent <i>composite data</i> structures. |
| * |
| * |
| * @since 1.5 |
| */ |
| public interface CompositeData { |
| |
| |
| /** |
| * Returns the <i>composite type </i> of this <i>composite data</i> instance. |
| * |
| * @return the type of this CompositeData. |
| */ |
| public CompositeType getCompositeType(); |
| |
| /** |
| * Returns the value of the item whose name is <tt>key</tt>. |
| * |
| * @param key the name of the item. |
| * |
| * @return the value associated with this key. |
| * |
| * @throws IllegalArgumentException if <tt>key</tt> is a null or empty String. |
| * |
| * @throws InvalidKeyException if <tt>key</tt> is not an existing item name for this <tt>CompositeData</tt> instance. |
| */ |
| public Object get(String key) ; |
| |
| /** |
| * Returns an array of the values of the items whose names are specified by <tt>keys</tt>, in the same order as <tt>keys</tt>. |
| * |
| * @param keys the names of the items. |
| * |
| * @return the values corresponding to the keys. |
| * |
| * @throws IllegalArgumentException if an element in <tt>keys</tt> is a null or empty String. |
| * |
| * @throws InvalidKeyException if an element in <tt>keys</tt> is not an existing item name for this <tt>CompositeData</tt> instance. |
| */ |
| public Object[] getAll(String[] keys) ; |
| |
| /** |
| * Returns <tt>true</tt> if and only if this <tt>CompositeData</tt> instance contains |
| * an item whose name is <tt>key</tt>. |
| * If <tt>key</tt> is a null or empty String, this method simply returns false. |
| * |
| * @param key the key to be tested. |
| * |
| * @return true if this <tt>CompositeData</tt> contains the key. |
| */ |
| public boolean containsKey(String key) ; |
| |
| /** |
| * Returns <tt>true</tt> if and only if this <tt>CompositeData</tt> instance contains an item |
| * whose value is <tt>value</tt>. |
| * |
| * @param value the value to be tested. |
| * |
| * @return true if this <tt>CompositeData</tt> contains the value. |
| */ |
| public boolean containsValue(Object value) ; |
| |
| /** |
| * Returns an unmodifiable Collection view of the item values contained in this <tt>CompositeData</tt> instance. |
| * The returned collection's iterator will return the values in the ascending lexicographic order of the corresponding |
| * item names. |
| * |
| * @return the values. |
| */ |
| public Collection<?> values() ; |
| |
| /** |
| * Compares the specified <var>obj</var> parameter with this |
| * <code>CompositeData</code> instance for equality. |
| * <p> |
| * Returns <tt>true</tt> if and only if all of the following statements are true: |
| * <ul> |
| * <li><var>obj</var> is non null,</li> |
| * <li><var>obj</var> also implements the <code>CompositeData</code> interface,</li> |
| * <li>their composite types are equal</li> |
| * <li>their contents, i.e. (name, value) pairs are equal. If a value contained in |
| * the content is an array, the value comparison is done as if by calling |
| * the {@link java.util.Arrays#deepEquals(Object[], Object[]) deepEquals} method |
| * for arrays of object reference types or the appropriate overloading of |
| * {@code Arrays.equals(e1,e2)} for arrays of primitive types</li> |
| * </ul> |
| * <p> |
| * This ensures that this <tt>equals</tt> method works properly for |
| * <var>obj</var> parameters which are different implementations of the |
| * <code>CompositeData</code> interface, with the restrictions mentioned in the |
| * {@link java.util.Collection#equals(Object) equals} |
| * method of the <tt>java.util.Collection</tt> interface. |
| * |
| * @param obj the object to be compared for equality with this |
| * <code>CompositeData</code> instance. |
| * @return <code>true</code> if the specified object is equal to this |
| * <code>CompositeData</code> instance. |
| */ |
| public boolean equals(Object obj) ; |
| |
| /** |
| * Returns the hash code value for this <code>CompositeData</code> instance. |
| * <p> |
| * The hash code of a <code>CompositeData</code> instance is the sum of the hash codes |
| * of all elements of information used in <code>equals</code> comparisons |
| * (ie: its <i>composite type</i> and all the item values). |
| * <p> |
| * This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code> |
| * for any two <code>CompositeData</code> instances <code>t1</code> and <code>t2</code>, |
| * as required by the general contract of the method |
| * {@link Object#hashCode() Object.hashCode()}. |
| * <p> |
| * Each item value's hash code is added to the returned hash code. |
| * If an item value is an array, |
| * its hash code is obtained as if by calling the |
| * {@link java.util.Arrays#deepHashCode(Object[]) deepHashCode} method |
| * for arrays of object reference types or the appropriate overloading |
| * of {@code Arrays.hashCode(e)} for arrays of primitive types. |
| * |
| * @return the hash code value for this <code>CompositeData</code> instance |
| */ |
| public int hashCode() ; |
| |
| /** |
| * Returns a string representation of this <code>CompositeData</code> instance. |
| * <p> |
| * The string representation consists of the name of the implementing class, |
| * the string representation of the composite type of this instance, and the string representation of the contents |
| * (ie list the itemName=itemValue mappings). |
| * |
| * @return a string representation of this <code>CompositeData</code> instance |
| */ |
| public String toString() ; |
| |
| } |