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

Thu, 11 Jul 2019 00:03:18 +0100

author
andrew
date
Thu, 11 Jul 2019 00:03:18 +0100
changeset 1929
356cf9da5633
parent 158
91006f157c46
child 748
6845b95cba6b
permissions
-rw-r--r--

Added tag jdk8u222-b10 for changeset d44170c2cece

duke@1 1 /*
ohair@158 2 * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@158 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@158 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@158 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@158 22 * or visit www.oracle.com if you need additional information or have any
ohair@158 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package org.omg.CORBA;
duke@1 27
duke@1 28 /**
duke@1 29 * An object that captures the explicit state of a request
duke@1 30 * for the Dynamic Skeleton Interface (DSI). This class, the
duke@1 31 * cornerstone of the DSI, is analogous to the <code>Request</code>
duke@1 32 * object in the DII.
duke@1 33 * <P>
duke@1 34 * The ORB is responsible for creating this embodiment of a request,
duke@1 35 * and delivering it to a Dynamic Implementation Routine (DIR).
duke@1 36 * A dynamic servant (a DIR) is created by implementing the
duke@1 37 * <code>DynamicImplementation</code> class,
duke@1 38 * which has a single <code>invoke</code> method. This method accepts a
duke@1 39 * <code>ServerRequest</code> object.
duke@1 40 *
duke@1 41 * The abstract class <code>ServerRequest</code> defines
duke@1 42 * methods for accessing the
duke@1 43 * method name, the arguments and the context of the request, as
duke@1 44 * well as methods for setting the result of the request either as a
duke@1 45 * return value or an exception. <p>
duke@1 46 *
duke@1 47 * A subtlety with accessing the arguments of the request is that the
duke@1 48 * DIR needs to provide type information about the
duke@1 49 * expected arguments, since there is no compiled information about
duke@1 50 * these. This information is provided through an <code>NVList</code>,
duke@1 51 * which is a list of <code>NamedValue</code> objects.
duke@1 52 * Each <code>NamedValue</code> object
duke@1 53 * contains an <code>Any</code> object, which in turn
duke@1 54 * has a <code>TypeCode</code> object representing the type
duke@1 55 * of the argument. <p>
duke@1 56 *
duke@1 57 * Similarly, type information needs to be provided for the response,
duke@1 58 * for either the expected result or for an exception, so the methods
duke@1 59 * <code>result</code> and <code>except</code> take an <code>Any</code>
duke@1 60 * object as a parameter. <p>
duke@1 61 *
duke@1 62 * @see org.omg.CORBA.DynamicImplementation
duke@1 63 * @see org.omg.CORBA.NVList
duke@1 64 * @see org.omg.CORBA.NamedValue
duke@1 65 *
duke@1 66 */
duke@1 67
duke@1 68 public abstract class ServerRequest {
duke@1 69
duke@1 70 /**
duke@1 71 * Retrieves the name of the operation being
duke@1 72 * invoked. According to OMG IDL's rules, these names must be unique
duke@1 73 * among all operations supported by this object's "most-derived"
duke@1 74 * interface. Note that the operation names for getting and setting
duke@1 75 * attributes are <code>_get_&lt;attribute_name&gt;</code>
duke@1 76 * and <code>_set_&lt;attribute_name&gt;</code>,
duke@1 77 * respectively.
duke@1 78 *
duke@1 79 * @return the name of the operation to be invoked
duke@1 80 * @deprecated use operation()
duke@1 81 */
duke@1 82 @Deprecated
duke@1 83 public String op_name()
duke@1 84 {
duke@1 85 return operation();
duke@1 86 }
duke@1 87
duke@1 88
duke@1 89 /**
duke@1 90 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
duke@1 91 * <P>
duke@1 92 * Retrieves the name of the operation being
duke@1 93 * invoked. According to OMG IDL's rules, these names must be unique
duke@1 94 * among all operations supported by this object's "most-derived"
duke@1 95 * interface. Note that the operation names for getting and setting
duke@1 96 * attributes are <code>_get_&lt;attribute_name&gt;</code>
duke@1 97 * and <code>_set_&lt;attribute_name&gt;</code>,
duke@1 98 * respectively.
duke@1 99 *
duke@1 100 * @return the name of the operation to be invoked
duke@1 101 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
duke@1 102 * package comments for unimplemented features</a>
duke@1 103 */
duke@1 104 public String operation()
duke@1 105 {
duke@1 106 throw new org.omg.CORBA.NO_IMPLEMENT();
duke@1 107 }
duke@1 108
duke@1 109
duke@1 110 /**
duke@1 111 * Specifies method parameter types and retrieves "in" and "inout"
duke@1 112 * argument values.
duke@1 113 * <P>
duke@1 114 * Note that this method is deprecated; use the method
duke@1 115 * <code>arguments</code> in its place.
duke@1 116 * <P>
duke@1 117 * Unless it calls the method <code>set_exception</code>,
duke@1 118 * the DIR must call this method exactly once, even if the
duke@1 119 * method signature contains no parameters. Once the method <code>
duke@1 120 * arguments</code> or <code>set_exception</code>
duke@1 121 * has been called, calling <code>arguments</code> on the same
duke@1 122 * <code>ServerRequest</code> object
duke@1 123 * will result in a <code>BAD_INV_ORDER</code> system exception.
duke@1 124 * The DIR must pass in to the method <code>arguments</code>
duke@1 125 * an NVList initialized with TypeCodes and Flags
duke@1 126 * describing the parameter types for the operation, in the order in which
duke@1 127 * they appear in the IDL specification (left to right). A
duke@1 128 * potentially-different NVList will be returned from
duke@1 129 * <code>arguments</code>, with the
duke@1 130 * "in" and "inout" argument values supplied. If it does not call
duke@1 131 * the method <code>set_exception</code>,
duke@1 132 * the DIR must supply the returned NVList with return
duke@1 133 * values for any "out" arguments before returning, and may also change
duke@1 134 * the return values for any "inout" arguments.
duke@1 135 *
duke@1 136 * @param params the arguments of the method, in the
duke@1 137 * form of an <code>NVList</code> object
duke@1 138 * @deprecated use the method <code>arguments</code>
duke@1 139 */
duke@1 140 @Deprecated
duke@1 141 public void params(NVList params)
duke@1 142 {
duke@1 143 arguments(params);
duke@1 144 }
duke@1 145
duke@1 146 /**
duke@1 147 * Specifies method parameter types and retrieves "in" and "inout"
duke@1 148 * argument values.
duke@1 149 * Unless it calls the method <code>set_exception</code>,
duke@1 150 * the DIR must call this method exactly once, even if the
duke@1 151 * method signature contains no parameters. Once the method <code>
duke@1 152 * arguments</code> or <code>set_exception</code>
duke@1 153 * has been called, calling <code>arguments</code> on the same
duke@1 154 * <code>ServerRequest</code> object
duke@1 155 * will result in a <code>BAD_INV_ORDER</code> system exception.
duke@1 156 * The DIR must pass in to the method <code>arguments</code>
duke@1 157 * an NVList initialized with TypeCodes and Flags
duke@1 158 * describing the parameter types for the operation, in the order in which
duke@1 159 * they appear in the IDL specification (left to right). A
duke@1 160 * potentially-different NVList will be returned from
duke@1 161 * <code>arguments</code>, with the
duke@1 162 * "in" and "inout" argument values supplied. If it does not call
duke@1 163 * the method <code>set_exception</code>,
duke@1 164 * the DIR must supply the returned NVList with return
duke@1 165 * values for any "out" arguments before returning, and it may also change
duke@1 166 * the return values for any "inout" arguments.
duke@1 167 *
duke@1 168 * @param args the arguments of the method, in the
duke@1 169 * form of an NVList
duke@1 170 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
duke@1 171 * package comments for unimplemented features</a>
duke@1 172 */
duke@1 173 public void arguments(org.omg.CORBA.NVList args) {
duke@1 174 throw new org.omg.CORBA.NO_IMPLEMENT();
duke@1 175 }
duke@1 176
duke@1 177
duke@1 178
duke@1 179 /**
duke@1 180 * Specifies any return value for the call.
duke@1 181 * <P>
duke@1 182 * Note that this method is deprecated; use the method
duke@1 183 * <code>set_result</code> in its place.
duke@1 184 * <P>
duke@1 185 * Unless the method
duke@1 186 * <code>set_exception</code> is called, if the invoked method
duke@1 187 * has a non-void result type, the method <code>set_result</code>
duke@1 188 * must be called exactly once before the DIR returns.
duke@1 189 * If the operation has a void result type, the method
duke@1 190 * <code>set_result</code> may optionally be
duke@1 191 * called once with an <code>Any</code> object whose type is
duke@1 192 * <code>tk_void</code>. Calling the method <code>set_result</code> before
duke@1 193 * the method <code>arguments</code> has been called or after
duke@1 194 * the method <code>set_result</code> or <code>set_exception</code> has been
duke@1 195 * called will result in a BAD_INV_ORDER exception. Calling the method
duke@1 196 * <code>set_result</code> without having previously called
duke@1 197 * the method <code>ctx</code> when the IDL operation contains a
duke@1 198 * context expression, or when the NVList passed to arguments did not
duke@1 199 * describe all parameters passed by the client, may result in a MARSHAL
duke@1 200 * system exception.
duke@1 201 *
duke@1 202 * @param any an <code>Any</code> object containing the return value to be set
duke@1 203 * @deprecated use the method <code>set_result</code>
duke@1 204 */
duke@1 205 @Deprecated
duke@1 206 public void result(Any any)
duke@1 207 {
duke@1 208 set_result(any);
duke@1 209 }
duke@1 210
duke@1 211
duke@1 212 /**
duke@1 213 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
duke@1 214 * <P>
duke@1 215 * Specifies any return value for the call. Unless the method
duke@1 216 * <code>set_exception</code> is called, if the invoked method
duke@1 217 * has a non-void result type, the method <code>set_result</code>
duke@1 218 * must be called exactly once before the DIR returns.
duke@1 219 * If the operation has a void result type, the method
duke@1 220 * <code>set_result</code> may optionally be
duke@1 221 * called once with an <code>Any</code> object whose type is
duke@1 222 * <code>tk_void</code>. Calling the method <code>set_result</code> before
duke@1 223 * the method <code>arguments</code> has been called or after
duke@1 224 * the method <code>set_result</code> or <code>set_exception</code> has been
duke@1 225 * called will result in a BAD_INV_ORDER exception. Calling the method
duke@1 226 * <code>set_result</code> without having previously called
duke@1 227 * the method <code>ctx</code> when the IDL operation contains a
duke@1 228 * context expression, or when the NVList passed to arguments did not
duke@1 229 * describe all parameters passed by the client, may result in a MARSHAL
duke@1 230 * system exception.
duke@1 231 *
duke@1 232 * @param any an <code>Any</code> object containing the return value to be set
duke@1 233 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
duke@1 234 * package comments for unimplemented features</a>
duke@1 235 */
duke@1 236 public void set_result(org.omg.CORBA.Any any)
duke@1 237 {
duke@1 238 throw new org.omg.CORBA.NO_IMPLEMENT();
duke@1 239 }
duke@1 240
duke@1 241
duke@1 242 /**
duke@1 243 * The DIR may call set_exception at any time to return an exception to the
duke@1 244 * client. The Any passed to set_exception must contain either a system
duke@1 245 * exception or a user exception specified in the raises expression
duke@1 246 * of the invoked operation's IDL definition. Passing in an Any that does
duke@1 247 * not
duke@1 248 * contain an exception will result in a BAD_PARAM system exception. Passing
duke@1 249 * in an unlisted user exception will result in either the DIR receiving a
duke@1 250 * BAD_PARAM system exception or in the client receiving an
duke@1 251 * UNKNOWN_EXCEPTION system exception.
duke@1 252 *
duke@1 253 * @param any the <code>Any</code> object containing the exception
duke@1 254 * @deprecated use set_exception()
duke@1 255 */
duke@1 256 @Deprecated
duke@1 257 public void except(Any any)
duke@1 258 {
duke@1 259 set_exception(any);
duke@1 260 }
duke@1 261
duke@1 262 /**
duke@1 263 * Throws an <code>org.omg.CORBA.NO_IMPLEMENT</code> exception.
duke@1 264 * <P>
duke@1 265 * Returns the given exception to the client. This method
duke@1 266 * is invoked by the DIR, which may call it at any time.
duke@1 267 * The <code>Any</code> object passed to this method must
duke@1 268 * contain either a system
duke@1 269 * exception or one of the user exceptions specified in the
duke@1 270 * invoked operation's IDL definition. Passing in an
duke@1 271 * <code>Any</code> object that does not contain an exception
duke@1 272 * will cause a BAD_PARAM system exception to be thrown. Passing
duke@1 273 * in an unlisted user exception will result in either the DIR receiving a
duke@1 274 * BAD_PARAM system exception or in the client receiving an
duke@1 275 * UNKNOWN_EXCEPTION system exception.
duke@1 276 *
duke@1 277 * @param any the <code>Any</code> object containing the exception
duke@1 278 * @exception BAD_PARAM if the given <code>Any</code> object does not
duke@1 279 * contain an exception or the exception is an
duke@1 280 * unlisted user exception
duke@1 281 * @exception UNKNOWN_EXCEPTION if the given exception is an unlisted
duke@1 282 * user exception and the DIR did not
duke@1 283 * receive a BAD_PARAM exception
duke@1 284 * @see <a href="package-summary.html#unimpl"><code>CORBA</code>
duke@1 285 * package comments for unimplemented features</a>
duke@1 286 */
duke@1 287 public void set_exception(Any any)
duke@1 288 {
duke@1 289 throw new org.omg.CORBA.NO_IMPLEMENT();
duke@1 290 }
duke@1 291
duke@1 292 /**
duke@1 293 * Returns the context information specified in IDL for the operation
duke@1 294 * when the operation is not an attribute access and the operation's IDL
duke@1 295 * definition contains a context expression; otherwise it returns
duke@1 296 * a nil <code>Context</code> reference. Calling the method
duke@1 297 * <code>ctx</code> before the method <code>arguments</code> has
duke@1 298 * been called or after the method <code>ctx</code>,
duke@1 299 * <code>set_result</code>, or <code>set_exception</code>
duke@1 300 * has been called will result in a
duke@1 301 * BAD_INV_ORDER system exception.
duke@1 302 *
duke@1 303 * @return the context object that is to be used
duke@1 304 * to resolve any context strings whose
duke@1 305 * values need to be sent with the invocation.
duke@1 306 * @exception BAD_INV_ORDER if (1) the method <code>ctx</code> is called
duke@1 307 * before the method <code>arguments</code> or
duke@1 308 * (2) the method <code>ctx</code> is called
duke@1 309 * after calling <code>set_result</code> or
duke@1 310 * <code>set_exception</code>
duke@1 311 */
duke@1 312 public abstract Context ctx();
duke@1 313
duke@1 314 }

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