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1   /**
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Intalio, Inc.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Intalio, Inc. Exolab is a registered
23   *    trademark of Intalio, Inc.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 1999-2003 (C) Intalio, Inc. All Rights Reserved.
42   *
43   * $Id$
44   */
45  
46  package org.exolab.castor.xml.schema;
47  
48  /**
49   * An extension of the ContentType to support simple content
50   * extension and restriction for complexTypes.
51   * 
52   *
53   * @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
54   * @version $Revision$ $Date: 2005-12-13 14:58:48 -0700 (Tue, 13 Dec 2005) $
55   */
56  public class SimpleContent extends ContentType implements java.io.Serializable {
57      /** SerialVersionUID */
58      private static final long serialVersionUID = 6406889524623062413L;
59  
60      /**
61       * The associated parent Schema 
62       */
63      private Schema _schema = null;
64      
65      /**
66       * The simpleType definition that defines this content type (if any)
67       */
68      private SimpleType _simpleType;
69  
70      /**
71       * The name of the simpleType, used when the simpleType
72       * has not yet been read or added to the parent Schema
73       */
74      private String _typeName = null;
75      
76      /**
77       * Creates a new SimpleContent
78       */
79      public SimpleContent() {
80          super(ContentType.SIMPLE);
81      } //-- ContentType
82  
83      /**
84       * Creates a new SimpleContent using the given SimpleContent.
85       * This constructor will copy from the given SimpleContent.
86       * 
87       *
88       * @param content the SimpleContent to copy from
89       */
90      public SimpleContent(SimpleContent content) {
91          super(ContentType.SIMPLE);
92          if (content != null) {
93              _simpleType = content._simpleType;
94              _typeName = content._typeName;
95              _schema = content._schema;
96          }
97      } //-- ContentType
98      
99      /**
100      * Creates a new SimpleContent
101      *
102      * @param simpleType the simpleType of this SimpleContent
103      */
104     public SimpleContent(SimpleType simpleType) {
105         super(ContentType.SIMPLE);
106         _simpleType = simpleType;
107     } //-- SimpleContent
108 
109     /**
110      * Creates a new SimpleContent
111      *
112      * @param schema the associated parent Schema
113      * @param typeName the name of the base simpleType, or 
114      * complexType (must also be a SimpleContent).
115      *
116      */
117     public SimpleContent(Schema schema, String typeName) {
118         super(ContentType.SIMPLE);
119         if (schema == null) {
120             String err = "The argument 'schema' must not be null.";
121             throw new IllegalArgumentException(err);
122         }
123         if (typeName == null) {
124             String err = "The argument 'typeName' must not be null.";
125             throw new IllegalArgumentException(err);
126         }
127         _schema = schema;
128         _typeName = typeName;        
129     } //-- SimpleContent
130 
131     /**
132      * Creates a  copy of this SimpleContent
133      *
134      * @return the new SimpleContent which is a copy of this SimpleContent
135      */
136     public SimpleContent copy() {
137         return new SimpleContent(this);
138     } //-- copy
139     
140    /**
141     * Returns the simpleType that represents that contentType. This may
142     * be null, if no simpleType has been set.
143     * 
144     * @return the simpleType that represents that contentType. 
145     */
146     public SimpleType getSimpleType() {
147         if ((_simpleType == null) && (_typeName != null)) {
148             XMLType base = _schema.getType(_typeName);
149             if (base != null) {
150                 if (base.isSimpleType()) {
151                     _simpleType = (SimpleType)base;
152                 }
153                 else {
154                     ComplexType complexType = (ComplexType)base;
155                     if (complexType.isSimpleContent()) {
156                         SimpleContent sc = (SimpleContent)complexType.getContentType();
157                         _simpleType = sc.getSimpleType();
158                     }
159                     else {
160                         //-- Report error
161                         String error = "The base ComplexType '" + _typeName + "' ";
162                         error += "must be a simpleContent.";
163                         throw new IllegalStateException(error);
164                     }
165                 }
166             }
167         }
168         return _simpleType;
169     } //-- getSimpleType
170     
171     /**
172      * Returns the name of the associated type for this SimpleContent
173      *
174      * @return the associated type name for this SimpleContent.
175      */
176     public String getTypeName() {
177         if (_simpleType != null) {
178             return _simpleType.getName();
179         }
180         return _typeName;
181     } //-- getTypeName
182     
183     
184     /**
185      * Sets the simpleType that represents that contentType.
186      * 
187      * @param simpleType the simpleType to set
188      */
189     public void setSimpleType(SimpleType simpleType) {
190         _simpleType = simpleType;
191     } //-- setSimpleType
192     
193 
194 } //-- SimpleContent