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Java > Open Source Codes > org > apache > wsif > schema > ElementType


1 /*
2  * The Apache Software License, Version 1.1
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4  *
5  * Copyright (c) 2002 The Apache Software Foundation. All rights
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25  * if and wherever such third-party acknowledgments normally appear.
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57
58 package org.apache.wsif.schema;
59
60 import java.io.Serializable JavaDoc;
61 import java.util.ArrayList JavaDoc;
62 import java.util.List JavaDoc;
63 import javax.xml.namespace.QName JavaDoc;
64
65 import org.w3c.dom.Element JavaDoc;
66 import org.w3c.dom.Node JavaDoc;
67 import org.w3c.dom.NodeList JavaDoc;
68
69 /**
70  * A class to represent a top level &lt;element&gt; element in a schema
71  *
72  * @author Owen Burroughs <owenb@apache.org>
73  */

74 public class ElementType extends SchemaType implements Serializable JavaDoc {
75     
76     static final long serialVersionUID = 1L;
77     
78     private String JavaDoc name = "";
79     private QName JavaDoc typeName = null;
80     private QName JavaDoc elementType = null;
81     private List JavaDoc childTypes = new ArrayList JavaDoc();
82     private boolean nillable = false;
83
84     /**
85      * Constructor
86      * @param el The dom element for this element
87      */

88     ElementType(Element JavaDoc el, String JavaDoc tns) {
89         elementType = getAttributeQName(el, "type", tns);
90         typeName = getAttributeQName(el, "name", tns);
91         
92         QName JavaDoc nillableAttr = getAttributeQName(el, "nillable", null);
93         String JavaDoc stTrue = "true";
94         if (nillableAttr != null && stTrue.equals(nillableAttr.getLocalPart())) {
95             nillable = true;
96         }
97         
98         // If the element has no name, we cannot map it. Don't do any more processing
99
// of this type
100
if (typeName == null) return;
101                 
102         name = typeName.getLocalPart();
103         NodeList JavaDoc children = el.getChildNodes();
104         for (int i=0; i<children.getLength(); i++) {
105             Node JavaDoc child = children.item(i);
106             if (child.getNodeType() == Node.ELEMENT_NODE) {
107                 Element JavaDoc subEl = (Element JavaDoc) child;
108                 String JavaDoc elType = subEl.getLocalName();
109                 if (elType.equals("complexType")) {
110                     childTypes.add(new ComplexType(subEl, tns));
111                 } else if (elType.equals("simpleType")) {
112                     childTypes.add(new SimpleType(subEl, tns));
113                 } else if (elType.equals("element")) {
114                     childTypes.add(new ElementType(subEl, tns));
115                 } else {
116                     //ignore all other types
117
}
118             }
119         }
120     }
121
122     /**
123      * @see SchemaType#isElement()
124      */

125     public boolean isElement() {
126         return true;
127     }
128
129     /**
130      * @see SchemaType#getTypeName()
131      */

132     public QName JavaDoc getTypeName() {
133         return typeName;
134     }
135
136     /**
137      * @see SchemaType#getTypeName()
138      */

139     public QName JavaDoc getElementType() {
140         return elementType;
141     }
142     
143     public boolean isNillable() {
144         return nillable;
145     }
146
147     /**
148      * @see SchemaType#getChildren()
149      */

150     public List JavaDoc getChildren() {
151         return childTypes;
152     }
153 }
154
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