jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/api/TypeReference.java@e530533619ec

     1 /*

     2  * Copyright (c) 1997, 2011, 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.bind.api;

    28 import java.lang.annotation.Annotation;

    29 import java.lang.reflect.Type;

    30 import java.util.Arrays;

    31 import java.util.Collection;

    33 import javax.xml.namespace.QName;

    35 /**

    36  * A reference to a JAXB-bound type.

    37  *

    38  * <p>

    39  * <b>Subject to change without notice</b>.

    40  *

    41  * @since 2.0 EA1

    42  * @author Kohsuke Kawaguchi

    43  */

    44 public final class TypeReference {

    46     /**

    47      * The associated XML element name that the JAX-RPC uses with this type reference.

    48      *

    49      * Always non-null. Strings are interned.

    50      */

    51     public final QName tagName;

    53     /**

    54      * The Java type that's being referenced.

    55      *

    56      * Always non-null.

    57      */

    58     public final Type type;

    60     /**

    61      * The annotations associated with the reference of this type.

    62      *

    63      * Always non-null.

    64      */

    65     public final Annotation[] annotations;

    67     public TypeReference(QName tagName, Type type, Annotation... annotations) {

    68         if(tagName==null || type==null || annotations==null) {

    69             String nullArgs = "";

    71             if(tagName == null)     nullArgs = "tagName";

    72             if(type == null)        nullArgs += (nullArgs.length() > 0 ? ", type" : "type");

    73             if(annotations == null) nullArgs += (nullArgs.length() > 0 ? ", annotations" : "annotations");

    75             Messages.ARGUMENT_CANT_BE_NULL.format(nullArgs);

    77             throw new IllegalArgumentException(Messages.ARGUMENT_CANT_BE_NULL.format(nullArgs));

    78         }

    80         this.tagName = new QName(tagName.getNamespaceURI().intern(), tagName.getLocalPart().intern(), tagName.getPrefix());

    81         this.type = type;

    82         this.annotations = annotations;

    83     }

    85     /**

    86      * Finds the specified annotation from the array and returns it.

    87      * Null if not found.

    88      */

    89     public <A extends Annotation> A get( Class<A> annotationType ) {

    90         for (Annotation a : annotations) {

    91             if(a.annotationType()==annotationType)

    92                 return annotationType.cast(a);

    93         }

    94         return null;

    95     }

    97     /**

    98      * Creates a {@link TypeReference} for the item type,

    99      * if this {@link TypeReference} represents a collection type.

   100      * Otherwise returns an identical type.

   101      */

   102     public TypeReference toItemType() {

   103         // if we are to reinstitute this check, check JAXB annotations only

   104         // assert annotations.length==0;   // not designed to work with adapters.

   106         Type base = Utils.REFLECTION_NAVIGATOR.getBaseClass(type, Collection.class);

   107         if(base==null)

   108             return this;    // not a collection

   110         return new TypeReference(tagName, Utils.REFLECTION_NAVIGATOR.getTypeArgument(base,0));

   111     }

   113     @Override

   114     public boolean equals(Object o) {

   115         if (this == o) return true;

   116         if (o == null || getClass() != o.getClass()) return false;

   118         TypeReference that = (TypeReference) o;

   120         if (!Arrays.equals(annotations, that.annotations)) return false;

   121         if (!tagName.equals(that.tagName)) return false;

   122         if (!type.equals(that.type)) return false;

   124         return true;

   125     }

   127     @Override

   128     public int hashCode() {

   129         int result = tagName.hashCode();

   130         result = 31 * result + type.hashCode();

   131         result = 31 * result + Arrays.hashCode(annotations);

   132         return result;

   133     }

   134 }

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