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package javax.xml.bind.annotation;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
/**
* Used to map a property to a list simple type.
*
* <p><b>Usage</b> </p>
* <p>
* The <tt>@XmlList</tt> annotation can be used with the
* following program elements:
* <ul>
* <li> JavaBean property </li>
* <li> field </li>
* </ul>
*
* <p>
* When a collection property is annotated just with @XmlElement,
* each item in the collection will be wrapped by an element.
* For example,
*
* <pre>
* @XmlRootElement
* class Foo {
* @XmlElement
* List<String> data;
* }
* </pre>
*
* would produce XML like this:
*
* <pre>
* <foo>
* <data>abc</data>
* <data>def</data>
* </foo>
* </pre>
*
* @XmlList annotation, on the other hand, allows multiple values to be
* represented as whitespace-separated tokens in a single element. For example,
*
* <pre>
* @XmlRootElement
* class Foo {
* @XmlElement
* @XmlList
* List<String> data;
* }
* </pre>
*
* the above code will produce XML like this:
*
* <pre>
* <foo>
* <data>abc def</data>
* </foo>
* </pre>
*
* <p>This annotation can be used with the following annotations:
* {@link XmlElement},
* {@link XmlAttribute},
* {@link XmlValue},
* {@link XmlIDREF}.
* <ul>
* <li> The use of <tt>@XmlList</tt> with {@link XmlValue} while
* allowed, is redundant since {@link XmlList} maps a
* collection type to a simple schema type that derives by
* list just as {@link XmlValue} would. </li>
*
* <li> The use of <tt>@XmlList</tt> with {@link XmlAttribute} while
* allowed, is redundant since {@link XmlList} maps a
* collection type to a simple schema type that derives by
* list just as {@link XmlAttribute} would. </li>
* </ul>
*
* @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul>
* @since JAXB2.0
*/
@Retention(RUNTIME) @Target({FIELD,METHOD,PARAMETER})
public @interface XmlList {
}
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