api/3.0/jakarta/xml/bind/annotation/XmlElements.html - gerrit/www.eclipse.org/eclipselink - Git at Google

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 <h2 title="Annotation Type XmlElements" class="title">Annotation Type XmlElements</h2>
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 <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Retention.html?is-external=true" title="class or interface in java.lang.annotation" class="externalLink">@Retention</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/RetentionPolicy.html?is-external=true#RUNTIME" title="class or interface in java.lang.annotation" class="externalLink">RUNTIME</a>)
 <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Target.html?is-external=true" title="class or interface in java.lang.annotation" class="externalLink">@Target</a>({<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/ElementType.html?is-external=true#FIELD" title="class or interface in java.lang.annotation" class="externalLink">FIELD</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/ElementType.html?is-external=true#METHOD" title="class or interface in java.lang.annotation" class="externalLink">METHOD</a>})
 public @interface <span class="memberNameLabel">XmlElements</span></pre>
 <div class="block"><p>
  A container for multiple @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations.

  Multiple annotations of the same type are not allowed on a program
  element. This annotation therefore serves as a container annotation
  for multiple &#64;XmlElements as follows:

  <pre>
  &#64;XmlElements({ @XmlElement(...),@XmlElement(...) })
  </pre>

  <p>The <code>@XmlElements</code> annotation can be used with the
  following program elements: </p>
  <ul>
    <li> a JavaBean property </li>
    <li> non static, non transient field </li>
  </ul>

  This annotation is intended for annotation a JavaBean collection
  property (e.g. List).

  <p><b>Usage</b></p>

  <p>The usage is subject to the following constraints:
  <ul>
    <li> This annotation can be used with the following
         annotations: @<a href="XmlIDREF.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlIDREF</code></a>, @<a href="XmlElementWrapper.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementWrapper</code></a>. </li>
    <li> If @XmlIDREF is also specified on the JavaBean property,
         then each &#64;XmlElement.type() must contain a JavaBean
         property annotated with <code>@XmlID</code>.</li>
  </ul>

  <p>See "Package Specification" in jakarta.xml.bind.package javadoc for
  additional common information.</p>

  <hr>

  <p><b>Example 1:</b> Map to a list of elements</p>
  <pre>

     // Mapped code fragment
     public class Foo {
         &#64;XmlElements(
             &#64;XmlElement(name="A", type=Integer.class),
             &#64;XmlElement(name="B", type=Float.class)
          )
          public List items;
     }
  <code>

     &lt;!-- XML Representation for a List of {1,2.5}
             XML output is not wrapped using another element --&gt;
     ...
     &lt;A&gt; 1 &lt;/A&gt;
     &lt;B&gt; 2.5 &lt;/B&gt;
     ...

     &lt;!-- XML Schema fragment --&gt;
     &lt;xs:complexType name="Foo"&gt;
       &lt;xs:sequence&gt;
         &lt;xs:choice minOccurs="0" maxOccurs="unbounded"&gt;
           &lt;xs:element name="A" type="xs:int"/&gt;
           &lt;xs:element name="B" type="xs:float"/&gt;
         &lt;xs:choice&gt;
       &lt;/xs:sequence&gt;
     &lt;/xs:complexType&gt;

  </code></pre>

  <p><b>Example 2:</b> Map to a list of elements wrapped with another element
  </p>
  <pre>

     // Mapped code fragment
     public class Foo {
         &#64;XmlElementWrapper(name="bar")
         &#64;XmlElements(
             &#64;XmlElement(name="A", type=Integer.class),
             &#64;XmlElement(name="B", type=Float.class)
         }
         public List items;
     }
  <code>

     &lt;!-- XML Schema fragment --&gt;
     &lt;xs:complexType name="Foo"&gt;
       &lt;xs:sequence&gt;
         &lt;xs:element name="bar"&gt;
           &lt;xs:complexType&gt;
             &lt;xs:choice minOccurs="0" maxOccurs="unbounded"&gt;
               &lt;xs:element name="A" type="xs:int"/&gt;
               &lt;xs:element name="B" type="xs:float"/&gt;
             &lt;/xs:choice&gt;
           &lt;/xs:complexType&gt;
         &lt;/xs:element&gt;
       &lt;/xs:sequence&gt;
     &lt;/xs:complexType&gt;
  </code></pre>

  <p><b>Example 3:</b> Change element name based on type using an adapter.
  </p>
  <pre>
     class Foo {
        &#64;XmlJavaTypeAdapter(QtoPAdapter.class)
        &#64;XmlElements({
            &#64;XmlElement(name="A",type=PX.class),
            &#64;XmlElement(name="B",type=PY.class)
        })
        Q bar;
     }

     &#64;XmlType abstract class P {...}
     &#64;XmlType(name="PX") class PX extends P {...}
     &#64;XmlType(name="PY") class PY extends P {...}
  <code>

     &lt;!-- XML Schema fragment --&gt;
     &lt;xs:complexType name="Foo"&gt;
       &lt;xs:sequence&gt;
         &lt;xs:element name="bar"&gt;
           &lt;xs:complexType&gt;
             &lt;xs:choice minOccurs="0" maxOccurs="unbounded"&gt;
               &lt;xs:element name="A" type="PX"/&gt;
               &lt;xs:element name="B" type="PY"/&gt;
             &lt;/xs:choice&gt;
           &lt;/xs:complexType&gt;
         &lt;/xs:element&gt;
       &lt;/xs:sequence&gt;
     &lt;/xs:complexType&gt;
  </code></pre></div>
 <dl>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a>,
 <a href="XmlElementRef.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementRef</code></a>,
 <a href="XmlElementRefs.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementRefs</code></a>,
 <a href="adapters/XmlJavaTypeAdapter.html" title="annotation in jakarta.xml.bind.annotation.adapters"><code>XmlJavaTypeAdapter</code></a></dd>
 <dt><span class="simpleTagLabel">Author:</span></dt>
 <dd><ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul></dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.6, JAXB 2.0</dd>
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 <li class="blockList"><a id="annotation.type.required.element.summary">
 <!--   -->
 </a>
 <h3>Required Element Summary</h3>
 <table class="memberSummary">
 <caption><span>Required Elements</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colSecond" scope="col">Required Element</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation">XmlElement</a>[]</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#value()">value</a></span></code></th>
 <td class="colLast">
 <div class="block">Collection of @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations</div>
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 <h4>value</h4>
 <pre><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation">XmlElement</a>[]&nbsp;value</pre>
 <div class="block">Collection of @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations</div>
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	<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">jakarta.xml.bind.annotation</a></div>
	<h2 title="Annotation Type XmlElements" class="title">Annotation Type XmlElements</h2>
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	<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Retention.html?is-external=true" title="class or interface in java.lang.annotation" class="externalLink">@Retention</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/RetentionPolicy.html?is-external=true#RUNTIME" title="class or interface in java.lang.annotation" class="externalLink">RUNTIME</a>)
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	public @interface <span class="memberNameLabel">XmlElements</span></pre>
	<div class="block"><p>
	A container for multiple @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations.

	Multiple annotations of the same type are not allowed on a program
	element. This annotation therefore serves as a container annotation
	for multiple @XmlElements as follows:

	<pre>
	@XmlElements({ @XmlElement(...),@XmlElement(...) })
	</pre>

	<p>The <code>@XmlElements</code> annotation can be used with the
	following program elements: </p>
	<ul>
	<li> a JavaBean property </li>
	<li> non static, non transient field </li>
	</ul>

	This annotation is intended for annotation a JavaBean collection
	property (e.g. List).

	<p><b>Usage</b></p>

	<p>The usage is subject to the following constraints:
	<ul>
	<li> This annotation can be used with the following
	annotations: @<a href="XmlIDREF.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlIDREF</code></a>, @<a href="XmlElementWrapper.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementWrapper</code></a>. </li>
	<li> If @XmlIDREF is also specified on the JavaBean property,
	then each @XmlElement.type() must contain a JavaBean
	property annotated with <code>@XmlID</code>.</li>
	</ul>

	<p>See "Package Specification" in jakarta.xml.bind.package javadoc for
	additional common information.</p>

	<hr>

	<p><b>Example 1:</b> Map to a list of elements</p>
	<pre>

	// Mapped code fragment
	public class Foo {
	@XmlElements(
	@XmlElement(name="A", type=Integer.class),
	@XmlElement(name="B", type=Float.class)
	)
	public List items;
	}
	<code>

	<!-- XML Representation for a List of {1,2.5}
	XML output is not wrapped using another element -->
	...
	<A> 1 </A>
	<B> 2.5 </B>
	...

	<!-- XML Schema fragment -->
	<xs:complexType name="Foo">
	<xs:sequence>
	<xs:choice minOccurs="0" maxOccurs="unbounded">
	<xs:element name="A" type="xs:int"/>
	<xs:element name="B" type="xs:float"/>
	<xs:choice>
	</xs:sequence>
	</xs:complexType>

	</code></pre>

	<p><b>Example 2:</b> Map to a list of elements wrapped with another element
	</p>
	<pre>

	// Mapped code fragment
	public class Foo {
	@XmlElementWrapper(name="bar")
	@XmlElements(
	@XmlElement(name="A", type=Integer.class),
	@XmlElement(name="B", type=Float.class)
	}
	public List items;
	}
	<code>

	<!-- XML Schema fragment -->
	<xs:complexType name="Foo">
	<xs:sequence>
	<xs:element name="bar">
	<xs:complexType>
	<xs:choice minOccurs="0" maxOccurs="unbounded">
	<xs:element name="A" type="xs:int"/>
	<xs:element name="B" type="xs:float"/>
	</xs:choice>
	</xs:complexType>
	</xs:element>
	</xs:sequence>
	</xs:complexType>
	</code></pre>

	<p><b>Example 3:</b> Change element name based on type using an adapter.
	</p>
	<pre>
	class Foo {
	@XmlJavaTypeAdapter(QtoPAdapter.class)
	@XmlElements({
	@XmlElement(name="A",type=PX.class),
	@XmlElement(name="B",type=PY.class)
	})
	Q bar;
	}

	@XmlType abstract class P {...}
	@XmlType(name="PX") class PX extends P {...}
	@XmlType(name="PY") class PY extends P {...}
	<code>

	<!-- XML Schema fragment -->
	<xs:complexType name="Foo">
	<xs:sequence>
	<xs:element name="bar">
	<xs:complexType>
	<xs:choice minOccurs="0" maxOccurs="unbounded">
	<xs:element name="A" type="PX"/>
	<xs:element name="B" type="PY"/>
	</xs:choice>
	</xs:complexType>
	</xs:element>
	</xs:sequence>
	</xs:complexType>
	</code></pre></div>
	<dl>
	<dt><span class="seeLabel">See Also:</span></dt>
	<dd><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a>,
	<a href="XmlElementRef.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementRef</code></a>,
	<a href="XmlElementRefs.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElementRefs</code></a>,
	<a href="adapters/XmlJavaTypeAdapter.html" title="annotation in jakarta.xml.bind.annotation.adapters"><code>XmlJavaTypeAdapter</code></a></dd>
	<dt><span class="simpleTagLabel">Author:</span></dt>
	<dd><ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul></dd>
	<dt><span class="simpleTagLabel">Since:</span></dt>
	<dd>1.6, JAXB 2.0</dd>
	</dl>
	</li>
	</ul>
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	<section role="region">
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	<!-- -->
	</a>
	<h3>Required Element Summary</h3>
	<table class="memberSummary">
	<caption><span>Required Elements</span><span class="tabEnd"> </span></caption>
	<tr>
	<th class="colFirst" scope="col">Modifier and Type</th>
	<th class="colSecond" scope="col">Required Element</th>
	<th class="colLast" scope="col">Description</th>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation">XmlElement</a>[]</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#value()">value</a></span></code></th>
	<td class="colLast">
	<div class="block">Collection of @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations</div>
	</td>
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	<a id="value()">
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	<li class="blockList">
	<h4>value</h4>
	<pre><a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation">XmlElement</a>[] value</pre>
	<div class="block">Collection of @<a href="XmlElement.html" title="annotation in jakarta.xml.bind.annotation"><code>XmlElement</code></a> annotations</div>
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