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package javax.xml.bind.annotation;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PACKAGE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Maps a Java type to a simple schema built-in type.
 *
 *  Usage 
 * 
 * @XmlSchemaType annotation can be used with the following program
 * elements: 
 * 
 
 *    a JavaBean property 
 *    field 
 *    package
 * 
 *
 *  @XmlSchemaType annotation defined for Java type
 * applies to all references to the Java type from a property/field. 
 * A @XmlSchemaType annotation specified on the
 * property/field overrides the @XmlSchemaType annotation
 * specified at the package level.
 *
 * 
 This annotation can be used with the following annotations:
 * {@link XmlElement},  {@link XmlAttribute}.
 * 

 * Example 1:  Customize mapping of XMLGregorianCalendar on the
 *  field.
 * 
 * 
 *     //Example: Code fragment
 *     public class USPrice {
 *         @XmlElement
 *         @XmlSchemaType(name="date")
 *         public XMLGregorianCalendar date;
 *     }
 * 
 *     <!-- Example: Local XML Schema element -->
 *     <xs:complexType name="USPrice"/>
 *       <xs:sequence>
 *         <xs:element name="date" type="xs:date"/>
 *       </sequence>
 *     </xs:complexType>
 * 
 *
 *   Example 2:  Customize mapping of XMLGregorianCalendar at package
 *     level 
 *  *     package foo;
 *     @javax.xml.bind.annotation.XmlSchemaType(
 *          name="date", type=javax.xml.datatype.XMLGregorianCalendar.class)
 *     }
 * 
 * 
 * @since JAXB2.0
 */

@Retention(RUNTIME) @Target({FIELD,METHOD,PACKAGE})        
public @interface XmlSchemaType {
    String name();
    String namespace() default "http://www.w3.org/2001/XMLSchema";
    /**
     * If this annotation is used at the package level, then value of
     * the type() must be specified.
     */

    Class type() default DEFAULT.class;

    /**
     * Used in {@link XmlSchemaType#type()} to
     * signal that the type be inferred from the signature
     * of the property.
     */

    static final class DEFAULT {}

}