jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/client/sei/ValueGetter.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.ws.client.sei;

    28 import javax.jws.WebParam.Mode;

    29 import javax.xml.ws.Holder;

    31 /**

    32  * Gets a value from an object that represents a parameter passed

    33  * as a method argument.

    34  *

    35  * <p>

    36  * This abstraction hides the handling of {@link Holder}.

    37  *

    38  * <p>

    39  * {@link ValueGetter} is a stateless behavior encapsulation.

    40  *

    41  * @author Kohsuke Kawaguchi

    42  */

    43 enum ValueGetter {

    44     /**

    45      * {@link ValueGetter} that works for {@link Mode#IN}  parameter.

    46      *

    47      * <p>

    48      * Since it's the IN mode, the parameter is not a {@link Holder},

    49      * therefore the parameter itself is a value.

    50      */

    51     PLAIN() {

    52         Object get(Object parameter) {

    53             return parameter;

    54         }

    55     },

    56     /**

    57      * Creates {@link ValueGetter} that works for {@link Holder},

    58      * which is  {@link Mode#INOUT} or  {@link Mode#OUT}.

    59      *

    60      * <p>

    61      * In those {@link Mode}s, the parameter is a {@link Holder},

    62      * so the value to be sent is obtained by getting the value of the holder.

    63      */

    64     HOLDER() {

    65         Object get(Object parameter) {

    66             if(parameter==null)

    67                 // the user is allowed to pass in null where a Holder is expected.

    68                 return null;

    69             return ((Holder)parameter).value;

    70         }

    71     };

    73     /**

    74      * Gets the value to be sent, from a parameter given as a method argument.

    75      * @param parameter that is passed by proxy

    76      * @return if it holder then its value, otherise parameter itself

    77      */

    78     abstract Object get(Object parameter);

    80 }

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