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| <li>Summary: </li> |
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| <li><a href="#annotation.type.optional.element.summary">Optional</a></li> |
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| <div class="subTitle">javax.xml.bind.annotation</div> |
| <h2 title="Annotation Type XmlElement" class="title">Annotation Type XmlElement</h2> |
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| <pre>@Retention(value=RUNTIME) |
| @Target(value={FIELD,METHOD,PARAMETER}) |
| public @interface <span class="memberNameLabel">XmlElement</span></pre> |
| <div class="block">Maps a JavaBean property to a XML element derived from property name. |
| |
| <p> <b>Usage</b> |
| <p> |
| <code>@XmlElement</code> annotation can be used with the following program |
| elements: |
| <ul> |
| <li> a JavaBean property </li> |
| <li> non static, non transient field </li> |
| <li> within <a href="../../../../javax/xml/bind/annotation/XmlElements.html" title="annotation in javax.xml.bind.annotation"><code>XmlElements</code></a> |
| </ul> |
| |
| The usage is subject to the following constraints: |
| <ul> |
| <li> This annotation can be used with following annotations: |
| <a href="../../../../javax/xml/bind/annotation/XmlID.html" title="annotation in javax.xml.bind.annotation"><code>XmlID</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlIDREF.html" title="annotation in javax.xml.bind.annotation"><code>XmlIDREF</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlList.html" title="annotation in javax.xml.bind.annotation"><code>XmlList</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlSchemaType.html" title="annotation in javax.xml.bind.annotation"><code>XmlSchemaType</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlValue.html" title="annotation in javax.xml.bind.annotation"><code>XmlValue</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlAttachmentRef.html" title="annotation in javax.xml.bind.annotation"><code>XmlAttachmentRef</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlMimeType.html" title="annotation in javax.xml.bind.annotation"><code>XmlMimeType</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlInlineBinaryData.html" title="annotation in javax.xml.bind.annotation"><code>XmlInlineBinaryData</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/XmlElementWrapper.html" title="annotation in javax.xml.bind.annotation"><code>XmlElementWrapper</code></a>, |
| <a href="../../../../javax/xml/bind/annotation/adapters/XmlJavaTypeAdapter.html" title="annotation in javax.xml.bind.annotation.adapters"><code>XmlJavaTypeAdapter</code></a></li> |
| <li> if the type of JavaBean property is a collection type of |
| array, an indexed property, or a parameterized list, and |
| this annotation is used with <a href="../../../../javax/xml/bind/annotation/XmlElements.html" title="annotation in javax.xml.bind.annotation"><code>XmlElements</code></a> then, |
| <code>@XmlElement.type()</code> must be DEFAULT.class since the |
| collection item type is already known. </li> |
| </ul> |
| |
| <p> |
| A JavaBean property, when annotated with @XmlElement annotation |
| is mapped to a local element in the XML Schema complex type to |
| which the containing class is mapped. |
| |
| <p> |
| <b>Example 1: </b> Map a public non static non final field to local |
| element |
| <pre> |
| //Example: Code fragment |
| public class USPrice { |
| @XmlElement(name="itemprice") |
| public java.math.BigDecimal price; |
| } |
| <code> |
| |
| <!-- Example: Local XML Schema element --> |
| <xs:complexType name="USPrice"/> |
| <xs:sequence> |
| <xs:element name="itemprice" type="xs:decimal" minOccurs="0"/> |
| </sequence> |
| </xs:complexType> |
| </code></pre> |
| <p> |
| |
| <b> Example 2: </b> Map a field to a nillable element. |
| <pre> |
| //Example: Code fragment |
| public class USPrice { |
| @XmlElement(nillable=true) |
| public java.math.BigDecimal price; |
| } |
| <code> |
| |
| <!-- Example: Local XML Schema element --> |
| <xs:complexType name="USPrice"> |
| <xs:sequence> |
| <xs:element name="price" type="xs:decimal" nillable="true" minOccurs="0"/> |
| </sequence> |
| </xs:complexType> |
| </code></pre> |
| <p> |
| <b> Example 3: </b> Map a field to a nillable, required element. |
| <pre> |
| //Example: Code fragment |
| public class USPrice { |
| @XmlElement(nillable=true, required=true) |
| public java.math.BigDecimal price; |
| } |
| <code> |
| |
| <!-- Example: Local XML Schema element --> |
| <xs:complexType name="USPrice"> |
| <xs:sequence> |
| <xs:element name="price" type="xs:decimal" nillable="true" minOccurs="1"/> |
| </sequence> |
| </xs:complexType> |
| </code></pre> |
| |
| <p> <b>Example 4: </b>Map a JavaBean property to an XML element |
| with anonymous type.</p> |
| <p> |
| See Example 6 in @<a href="../../../../javax/xml/bind/annotation/XmlType.html" title="annotation in javax.xml.bind.annotation"><code>XmlType</code></a>.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.6, JAXB 2.0</dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== --> |
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| <li class="blockList"><a name="annotation.type.optional.element.summary"> |
| <!-- --> |
| </a> |
| <h3>Optional Element Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation"> |
| <caption><span>Optional Elements</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Optional Element and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#defaultValue--">defaultValue</a></span></code> |
| <div class="block">Default value of this element.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#name--">name</a></span></code> |
| <div class="block">Name of the XML Schema element.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#namespace--">namespace</a></span></code> |
| <div class="block">XML target namespace of the XML Schema element.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#nillable--">nillable</a></span></code> |
| <div class="block">Customize the element declaration to be nillable.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#required--">required</a></span></code> |
| <div class="block">Customize the element declaration to be required.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.Class</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/xml/bind/annotation/XmlElement.html#type--">type</a></span></code> |
| <div class="block">The Java class being referenced.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="annotation.type.element.detail"> |
| <!-- --> |
| </a> |
| <h3>Element Detail</h3> |
| <a name="name--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>name</h4> |
| <pre>public abstract java.lang.String name</pre> |
| <div class="block">Name of the XML Schema element. |
| <p> If the value is "##default", then element name is derived from the |
| JavaBean property name.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>"##default"</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <li class="blockList"><a name="nillable--"> |
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| </a> |
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| <h4>nillable</h4> |
| <pre>public abstract boolean nillable</pre> |
| <div class="block">Customize the element declaration to be nillable. |
| <p>If nillable() is true, then the JavaBean property is |
| mapped to a XML Schema nillable element declaration.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>false</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>required</h4> |
| <pre>public abstract boolean required</pre> |
| <div class="block">Customize the element declaration to be required. |
| <p>If required() is true, then Javabean property is mapped to |
| an XML schema element declaration with minOccurs="1". |
| maxOccurs is "1" for a single valued property and "unbounded" |
| for a multivalued property. |
| <p>If required() is false, then the Javabean property is mapped |
| to XML Schema element declaration with minOccurs="0". |
| maxOccurs is "1" for a single valued property and "unbounded" |
| for a multivalued property.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>false</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>namespace</h4> |
| <pre>public abstract java.lang.String namespace</pre> |
| <div class="block">XML target namespace of the XML Schema element. |
| <p> |
| If the value is "##default", then the namespace is determined |
| as follows: |
| <ol> |
| <li> |
| If the enclosing package has <a href="../../../../javax/xml/bind/annotation/XmlSchema.html" title="annotation in javax.xml.bind.annotation"><code>XmlSchema</code></a> annotation, |
| and its <a href="../../../../javax/xml/bind/annotation/XmlSchema.html#elementFormDefault--"><code>elementFormDefault</code></a> |
| is <a href="../../../../javax/xml/bind/annotation/XmlNsForm.html#QUALIFIED"><code>QUALIFIED</code></a>, then the namespace of |
| the enclosing class. |
| |
| <li> |
| Otherwise '' (which produces unqualified element in the default |
| namespace. |
| </ol></div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>"##default"</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <li class="blockList"><a name="defaultValue--"> |
| <!-- --> |
| </a> |
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| <h4>defaultValue</h4> |
| <pre>public abstract java.lang.String defaultValue</pre> |
| <div class="block">Default value of this element. |
| |
| <p> |
| The <pre>''</pre> value specified as a default of this annotation element |
| is used as a poor-man's substitute for null to allow implementations |
| to recognize the 'no default value' state.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>"\u0000"</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>type</h4> |
| <pre>public abstract java.lang.Class type</pre> |
| <div class="block">The Java class being referenced.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>javax.xml.bind.annotation.XmlElement.DEFAULT.class</dd> |
| </dl> |
| </li> |
| </ul> |
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