src/share/classes/org/omg/CORBA/ContextList.java

Thu, 31 Aug 2017 18:10:36 +0800

author
aoqi
date
Thu, 31 Aug 2017 18:10:36 +0800
changeset 748
6845b95cba6b
parent 158
91006f157c46
parent 0
7ef37b2cdcad
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1996, 1999, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package org.omg.CORBA;
aoqi@0 27
aoqi@0 28 /**
aoqi@0 29 * An object containing a modifiable list of <code>String</code> objects
aoqi@0 30 * that represent property names.
aoqi@0 31 * This class is used in <code>Request</code> operations to
aoqi@0 32 * describe the contexts that need to be resolved and sent with the
aoqi@0 33 * invocation. (A context is resolved by giving a property name
aoqi@0 34 * and getting back the value associated with it.) This is done
aoqi@0 35 * by calling the <code>Context</code> method
aoqi@0 36 * <code>get_values</code> and supplying a string from a
aoqi@0 37 * <code>ContextList</code> object as the third parameter.
aoqi@0 38 * The method <code>get_values</code> returns an <code>NVList</code>
aoqi@0 39 * object containing the <code>NamedValue</code> objects that hold
aoqi@0 40 * the value(s) identified by the given string.
aoqi@0 41 * <P>
aoqi@0 42 * A <code>ContextList</code> object is created by the ORB, as
aoqi@0 43 * illustrated here:
aoqi@0 44 * <PRE>
aoqi@0 45 * ORB orb = ORB.init(args, null);
aoqi@0 46 * org.omg.CORBA.ContextList ctxList = orb.create_context_list();
aoqi@0 47 * </PRE>
aoqi@0 48 * The variable <code>ctxList</code> represents an empty
aoqi@0 49 * <code>ContextList</code> object. Strings are added to
aoqi@0 50 * the list with the method <code>add</code>, accessed
aoqi@0 51 * with the method <code>item</code>, and removed with the
aoqi@0 52 * method <code>remove</code>.
aoqi@0 53 *
aoqi@0 54 * @see Context
aoqi@0 55 * @since JDK1.2
aoqi@0 56 */
aoqi@0 57
aoqi@0 58 public abstract class ContextList {
aoqi@0 59
aoqi@0 60 /**
aoqi@0 61 * Returns the number of <code>String</code> objects in this
aoqi@0 62 * <code>ContextList</code> object.
aoqi@0 63 *
aoqi@0 64 * @return an <code>int</code> representing the number of
aoqi@0 65 * <code>String</code>s in this <code>ContextList</code> object
aoqi@0 66 */
aoqi@0 67
aoqi@0 68 public abstract int count();
aoqi@0 69
aoqi@0 70 /**
aoqi@0 71 * Adds a <code>String</code> object to this <code>ContextList</code>
aoqi@0 72 * object.
aoqi@0 73 *
aoqi@0 74 * @param ctx the <code>String</code> object to be added
aoqi@0 75 */
aoqi@0 76
aoqi@0 77 public abstract void add(String ctx);
aoqi@0 78
aoqi@0 79 /**
aoqi@0 80 * Returns the <code>String</code> object at the given index.
aoqi@0 81 *
aoqi@0 82 * @param index the index of the string desired, with 0 being the
aoqi@0 83 index of the first string
aoqi@0 84 * @return the string at the given index
aoqi@0 85 * @exception org.omg.CORBA.Bounds if the index is greater than
aoqi@0 86 * or equal to the number of strings in this
aoqi@0 87 * <code>ContextList</code> object
aoqi@0 88 */
aoqi@0 89
aoqi@0 90 public abstract String item(int index) throws org.omg.CORBA.Bounds;
aoqi@0 91
aoqi@0 92 /**
aoqi@0 93 * Removes the <code>String</code> object at the given index. Note that
aoqi@0 94 * the indices of all strings following the one removed are
aoqi@0 95 * shifted down by one.
aoqi@0 96 *
aoqi@0 97 * @param index the index of the <code>String</code> object to be removed,
aoqi@0 98 * with 0 designating the first string
aoqi@0 99 * @exception org.omg.CORBA.Bounds if the index is greater than
aoqi@0 100 * or equal to the number of <code>String</code> objects in
aoqi@0 101 * this <code>ContextList</code> object
aoqi@0 102 */
aoqi@0 103
aoqi@0 104 public abstract void remove(int index) throws org.omg.CORBA.Bounds;
aoqi@0 105
aoqi@0 106 }

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