src/share/classes/org/omg/CORBA/ServerRequest.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, 2004, 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 that captures the explicit state of a request
aoqi@0 30 * for the Dynamic Skeleton Interface (DSI). This class, the
aoqi@0 31 * cornerstone of the DSI, is analogous to the <code>Request</code>
aoqi@0 32 * object in the DII.
aoqi@0 33 * <P>
aoqi@0 34 * The ORB is responsible for creating this embodiment of a request,
aoqi@0 35 * and delivering it to a Dynamic Implementation Routine (DIR).
aoqi@0 36 * A dynamic servant (a DIR) is created by implementing the
aoqi@0 37 * <code>DynamicImplementation</code> class,
aoqi@0 38 * which has a single <code>invoke</code> method. This method accepts a
aoqi@0 39 * <code>ServerRequest</code> object.
aoqi@0 40 *
aoqi@0 41 * The abstract class <code>ServerRequest</code> defines
aoqi@0 42 * methods for accessing the
aoqi@0 43 * method name, the arguments and the context of the request, as
aoqi@0 44 * well as methods for setting the result of the request either as a
aoqi@0 45 * return value or an exception. <p>
aoqi@0 46 *
aoqi@0 47 * A subtlety with accessing the arguments of the request is that the
aoqi@0 48 * DIR needs to provide type information about the
aoqi@0 49 * expected arguments, since there is no compiled information about
aoqi@0 50 * these. This information is provided through an <code>NVList</code>,
aoqi@0 51 * which is a list of <code>NamedValue</code> objects.
aoqi@0 52 * Each <code>NamedValue</code> object
aoqi@0 53 * contains an <code>Any</code> object, which in turn
aoqi@0 54 * has a <code>TypeCode</code> object representing the type
aoqi@0 55 * of the argument. <p>
aoqi@0 56 *
aoqi@0 57 * Similarly, type information needs to be provided for the response,
aoqi@0 58 * for either the expected result or for an exception, so the methods
aoqi@0 59 * <code>result</code> and <code>except</code> take an <code>Any</code>
aoqi@0 60 * object as a parameter. <p>
aoqi@0 61 *
aoqi@0 62 * @see org.omg.CORBA.DynamicImplementation
aoqi@0 63 * @see org.omg.CORBA.NVList
aoqi@0 64 * @see org.omg.CORBA.NamedValue
aoqi@0 65 *
aoqi@0 66 */
aoqi@0 67
aoqi@0 68 public abstract class ServerRequest {
aoqi@0 69
aoqi@0 70 /**
aoqi@0 71 * Retrieves the name of the operation being
aoqi@0 72 * invoked. According to OMG IDL's rules, these names must be unique
aoqi@0 73 * among all operations supported by this object's "most-derived"
aoqi@0 74 * interface. Note that the operation names for getting and setting
aoqi@0 75 * attributes are <code>_get_&lt;attribute_name&gt;</code>
aoqi@0 76 * and <code>_set_&lt;attribute_name&gt;</code>,
aoqi@0 77 * respectively.
aoqi@0 78 *
aoqi@0 79 * @return the name of the operation to be invoked
aoqi@0 80 * @deprecated use operation()
aoqi@0 81 */
aoqi@0 82 @Deprecated
aoqi@0 83 public String op_name()
aoqi@0 84 {
aoqi@0 85 return operation();
aoqi@0 86 }
aoqi@0 87
aoqi@0 88
aoqi@0 89 /**
aoqi@0 90 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
aoqi@0 91 * <P>
aoqi@0 92 * Retrieves the name of the operation being
aoqi@0 93 * invoked. According to OMG IDL's rules, these names must be unique
aoqi@0 94 * among all operations supported by this object's "most-derived"
aoqi@0 95 * interface. Note that the operation names for getting and setting
aoqi@0 96 * attributes are <code>_get_&lt;attribute_name&gt;</code>
aoqi@0 97 * and <code>_set_&lt;attribute_name&gt;</code>,
aoqi@0 98 * respectively.
aoqi@0 99 *
aoqi@0 100 * @return the name of the operation to be invoked
aoqi@0 101 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
aoqi@0 102 * package comments for unimplemented features</a>
aoqi@0 103 */
aoqi@0 104 public String operation()
aoqi@0 105 {
aoqi@0 106 throw new org.omg.CORBA.NO_IMPLEMENT();
aoqi@0 107 }
aoqi@0 108
aoqi@0 109
aoqi@0 110 /**
aoqi@0 111 * Specifies method parameter types and retrieves "in" and "inout"
aoqi@0 112 * argument values.
aoqi@0 113 * <P>
aoqi@0 114 * Note that this method is deprecated; use the method
aoqi@0 115 * <code>arguments</code> in its place.
aoqi@0 116 * <P>
aoqi@0 117 * Unless it calls the method <code>set_exception</code>,
aoqi@0 118 * the DIR must call this method exactly once, even if the
aoqi@0 119 * method signature contains no parameters. Once the method <code>
aoqi@0 120 * arguments</code> or <code>set_exception</code>
aoqi@0 121 * has been called, calling <code>arguments</code> on the same
aoqi@0 122 * <code>ServerRequest</code> object
aoqi@0 123 * will result in a <code>BAD_INV_ORDER</code> system exception.
aoqi@0 124 * The DIR must pass in to the method <code>arguments</code>
aoqi@0 125 * an NVList initialized with TypeCodes and Flags
aoqi@0 126 * describing the parameter types for the operation, in the order in which
aoqi@0 127 * they appear in the IDL specification (left to right). A
aoqi@0 128 * potentially-different NVList will be returned from
aoqi@0 129 * <code>arguments</code>, with the
aoqi@0 130 * "in" and "inout" argument values supplied. If it does not call
aoqi@0 131 * the method <code>set_exception</code>,
aoqi@0 132 * the DIR must supply the returned NVList with return
aoqi@0 133 * values for any "out" arguments before returning, and may also change
aoqi@0 134 * the return values for any "inout" arguments.
aoqi@0 135 *
aoqi@0 136 * @param params the arguments of the method, in the
aoqi@0 137 * form of an <code>NVList</code> object
aoqi@0 138 * @deprecated use the method <code>arguments</code>
aoqi@0 139 */
aoqi@0 140 @Deprecated
aoqi@0 141 public void params(NVList params)
aoqi@0 142 {
aoqi@0 143 arguments(params);
aoqi@0 144 }
aoqi@0 145
aoqi@0 146 /**
aoqi@0 147 * Specifies method parameter types and retrieves "in" and "inout"
aoqi@0 148 * argument values.
aoqi@0 149 * Unless it calls the method <code>set_exception</code>,
aoqi@0 150 * the DIR must call this method exactly once, even if the
aoqi@0 151 * method signature contains no parameters. Once the method <code>
aoqi@0 152 * arguments</code> or <code>set_exception</code>
aoqi@0 153 * has been called, calling <code>arguments</code> on the same
aoqi@0 154 * <code>ServerRequest</code> object
aoqi@0 155 * will result in a <code>BAD_INV_ORDER</code> system exception.
aoqi@0 156 * The DIR must pass in to the method <code>arguments</code>
aoqi@0 157 * an NVList initialized with TypeCodes and Flags
aoqi@0 158 * describing the parameter types for the operation, in the order in which
aoqi@0 159 * they appear in the IDL specification (left to right). A
aoqi@0 160 * potentially-different NVList will be returned from
aoqi@0 161 * <code>arguments</code>, with the
aoqi@0 162 * "in" and "inout" argument values supplied. If it does not call
aoqi@0 163 * the method <code>set_exception</code>,
aoqi@0 164 * the DIR must supply the returned NVList with return
aoqi@0 165 * values for any "out" arguments before returning, and it may also change
aoqi@0 166 * the return values for any "inout" arguments.
aoqi@0 167 *
aoqi@0 168 * @param args the arguments of the method, in the
aoqi@0 169 * form of an NVList
aoqi@0 170 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
aoqi@0 171 * package comments for unimplemented features</a>
aoqi@0 172 */
aoqi@0 173 public void arguments(org.omg.CORBA.NVList args) {
aoqi@0 174 throw new org.omg.CORBA.NO_IMPLEMENT();
aoqi@0 175 }
aoqi@0 176
aoqi@0 177
aoqi@0 178
aoqi@0 179 /**
aoqi@0 180 * Specifies any return value for the call.
aoqi@0 181 * <P>
aoqi@0 182 * Note that this method is deprecated; use the method
aoqi@0 183 * <code>set_result</code> in its place.
aoqi@0 184 * <P>
aoqi@0 185 * Unless the method
aoqi@0 186 * <code>set_exception</code> is called, if the invoked method
aoqi@0 187 * has a non-void result type, the method <code>set_result</code>
aoqi@0 188 * must be called exactly once before the DIR returns.
aoqi@0 189 * If the operation has a void result type, the method
aoqi@0 190 * <code>set_result</code> may optionally be
aoqi@0 191 * called once with an <code>Any</code> object whose type is
aoqi@0 192 * <code>tk_void</code>. Calling the method <code>set_result</code> before
aoqi@0 193 * the method <code>arguments</code> has been called or after
aoqi@0 194 * the method <code>set_result</code> or <code>set_exception</code> has been
aoqi@0 195 * called will result in a BAD_INV_ORDER exception. Calling the method
aoqi@0 196 * <code>set_result</code> without having previously called
aoqi@0 197 * the method <code>ctx</code> when the IDL operation contains a
aoqi@0 198 * context expression, or when the NVList passed to arguments did not
aoqi@0 199 * describe all parameters passed by the client, may result in a MARSHAL
aoqi@0 200 * system exception.
aoqi@0 201 *
aoqi@0 202 * @param any an <code>Any</code> object containing the return value to be set
aoqi@0 203 * @deprecated use the method <code>set_result</code>
aoqi@0 204 */
aoqi@0 205 @Deprecated
aoqi@0 206 public void result(Any any)
aoqi@0 207 {
aoqi@0 208 set_result(any);
aoqi@0 209 }
aoqi@0 210
aoqi@0 211
aoqi@0 212 /**
aoqi@0 213 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
aoqi@0 214 * <P>
aoqi@0 215 * Specifies any return value for the call. Unless the method
aoqi@0 216 * <code>set_exception</code> is called, if the invoked method
aoqi@0 217 * has a non-void result type, the method <code>set_result</code>
aoqi@0 218 * must be called exactly once before the DIR returns.
aoqi@0 219 * If the operation has a void result type, the method
aoqi@0 220 * <code>set_result</code> may optionally be
aoqi@0 221 * called once with an <code>Any</code> object whose type is
aoqi@0 222 * <code>tk_void</code>. Calling the method <code>set_result</code> before
aoqi@0 223 * the method <code>arguments</code> has been called or after
aoqi@0 224 * the method <code>set_result</code> or <code>set_exception</code> has been
aoqi@0 225 * called will result in a BAD_INV_ORDER exception. Calling the method
aoqi@0 226 * <code>set_result</code> without having previously called
aoqi@0 227 * the method <code>ctx</code> when the IDL operation contains a
aoqi@0 228 * context expression, or when the NVList passed to arguments did not
aoqi@0 229 * describe all parameters passed by the client, may result in a MARSHAL
aoqi@0 230 * system exception.
aoqi@0 231 *
aoqi@0 232 * @param any an <code>Any</code> object containing the return value to be set
aoqi@0 233 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
aoqi@0 234 * package comments for unimplemented features</a>
aoqi@0 235 */
aoqi@0 236 public void set_result(org.omg.CORBA.Any any)
aoqi@0 237 {
aoqi@0 238 throw new org.omg.CORBA.NO_IMPLEMENT();
aoqi@0 239 }
aoqi@0 240
aoqi@0 241
aoqi@0 242 /**
aoqi@0 243 * The DIR may call set_exception at any time to return an exception to the
aoqi@0 244 * client. The Any passed to set_exception must contain either a system
aoqi@0 245 * exception or a user exception specified in the raises expression
aoqi@0 246 * of the invoked operation's IDL definition. Passing in an Any that does
aoqi@0 247 * not
aoqi@0 248 * contain an exception will result in a BAD_PARAM system exception. Passing
aoqi@0 249 * in an unlisted user exception will result in either the DIR receiving a
aoqi@0 250 * BAD_PARAM system exception or in the client receiving an
aoqi@0 251 * UNKNOWN_EXCEPTION system exception.
aoqi@0 252 *
aoqi@0 253 * @param any the <code>Any</code> object containing the exception
aoqi@0 254 * @deprecated use set_exception()
aoqi@0 255 */
aoqi@0 256 @Deprecated
aoqi@0 257 public void except(Any any)
aoqi@0 258 {
aoqi@0 259 set_exception(any);
aoqi@0 260 }
aoqi@0 261
aoqi@0 262 /**
aoqi@0 263 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
aoqi@0 264 * <P>
aoqi@0 265 * Returns the given exception to the client. This method
aoqi@0 266 * is invoked by the DIR, which may call it at any time.
aoqi@0 267 * The <code>Any</code> object passed to this method must
aoqi@0 268 * contain either a system
aoqi@0 269 * exception or one of the user exceptions specified in the
aoqi@0 270 * invoked operation's IDL definition. Passing in an
aoqi@0 271 * <code>Any</code> object that does not contain an exception
aoqi@0 272 * will cause a BAD_PARAM system exception to be thrown. Passing
aoqi@0 273 * in an unlisted user exception will result in either the DIR receiving a
aoqi@0 274 * BAD_PARAM system exception or in the client receiving an
aoqi@0 275 * UNKNOWN_EXCEPTION system exception.
aoqi@0 276 *
aoqi@0 277 * @param any the <code>Any</code> object containing the exception
aoqi@0 278 * @exception BAD_PARAM if the given <code>Any</code> object does not
aoqi@0 279 * contain an exception or the exception is an
aoqi@0 280 * unlisted user exception
aoqi@0 281 * @exception UNKNOWN_EXCEPTION if the given exception is an unlisted
aoqi@0 282 * user exception and the DIR did not
aoqi@0 283 * receive a BAD_PARAM exception
aoqi@0 284 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
aoqi@0 285 * package comments for unimplemented features</a>
aoqi@0 286 */
aoqi@0 287 public void set_exception(Any any)
aoqi@0 288 {
aoqi@0 289 throw new org.omg.CORBA.NO_IMPLEMENT();
aoqi@0 290 }
aoqi@0 291
aoqi@0 292 /**
aoqi@0 293 * Returns the context information specified in IDL for the operation
aoqi@0 294 * when the operation is not an attribute access and the operation's IDL
aoqi@0 295 * definition contains a context expression; otherwise it returns
aoqi@0 296 * a nil <code>Context</code> reference. Calling the method
aoqi@0 297 * <code>ctx</code> before the method <code>arguments</code> has
aoqi@0 298 * been called or after the method <code>ctx</code>,
aoqi@0 299 * <code>set_result</code>, or <code>set_exception</code>
aoqi@0 300 * has been called will result in a
aoqi@0 301 * BAD_INV_ORDER system exception.
aoqi@0 302 *
aoqi@0 303 * @return the context object that is to be used
aoqi@0 304 * to resolve any context strings whose
aoqi@0 305 * values need to be sent with the invocation.
aoqi@0 306 * @exception BAD_INV_ORDER if (1) the method <code>ctx</code> is called
aoqi@0 307 * before the method <code>arguments</code> or
aoqi@0 308 * (2) the method <code>ctx</code> is called
aoqi@0 309 * after calling <code>set_result</code> or
aoqi@0 310 * <code>set_exception</code>
aoqi@0 311 */
aoqi@0 312 public abstract Context ctx();
aoqi@0 313
aoqi@0 314 }

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