jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/rngom/digested/DPattern.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 2005, 2010, 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  */

    25 /*

    26  * Copyright (C) 2004-2012

    27  *

    28  * Permission is hereby granted, free of charge, to any person obtaining a copy

    29  * of this software and associated documentation files (the "Software"), to deal

    30  * in the Software without restriction, including without limitation the rights

    31  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

    32  * copies of the Software, and to permit persons to whom the Software is

    33  * furnished to do so, subject to the following conditions:

    34  *

    35  * The above copyright notice and this permission notice shall be included in

    36  * all copies or substantial portions of the Software.

    37  *

    38  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    39  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    40  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    41  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    42  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    43  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    44  * THE SOFTWARE.

    45  */

    46 package com.sun.xml.internal.rngom.digested;

    48 import com.sun.xml.internal.rngom.ast.om.ParsedPattern;

    49 import com.sun.xml.internal.rngom.parse.Parseable;

    50 import org.xml.sax.Locator;

    52 /**

    53  * Base class of all the patterns.

    54  *

    55  * @author Kohsuke Kawaguchi (kk@kohsuke.org)

    56  */

    57 public abstract class DPattern implements ParsedPattern {

    59     Locator location;

    60     DAnnotation annotation;

    61     /**

    62      * Used to chain the child patterns in a doubly-linked list.

    63      */

    64     DPattern next;

    65     DPattern prev;

    67     /**

    68      * Returns where the pattern is defined in the source code.

    69      */

    70     public Locator getLocation() {

    71         return location;

    72     }

    74     /**

    75      * Returns the annotation associated with it.

    76      *

    77      * @return may be empty, but never be null.

    78      */

    79     public DAnnotation getAnnotation() {

    80         if (annotation == null) {

    81             return DAnnotation.EMPTY;

    82         }

    83         return annotation;

    84     }

    86     /**

    87      * Returns true if this pattern is nullable.

    88      *

    89      * A nullable pattern is a pattern that can match the empty sequence.

    90      */

    91     public abstract boolean isNullable();

    93     public abstract <V> V accept(DPatternVisitor<V> visitor);

    95     /**

    96      * Creates a {@link Parseable} object that reparses this pattern.

    97      */

    98     public Parseable createParseable() {

    99         return new PatternParseable(this);

   100     }

   102     /**

   103      * Returns true if this is {@link DElementPattern}.

   104      */

   105     public final boolean isElement() {

   106         return this instanceof DElementPattern;

   107     }

   109     /**

   110      * Returns true if this is {@link DAttributePattern}.

   111      */

   112     public final boolean isAttribute() {

   113         return this instanceof DAttributePattern;

   114     }

   115 }

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