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