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// * * | |
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// *************************************************************************************************************************** | |
package org.apache.juneau.json.annotation; | |
import static java.lang.annotation.ElementType.*; | |
import static java.lang.annotation.RetentionPolicy.*; | |
import java.lang.annotation.*; | |
/** | |
* Annotation for specifying various JSON options for the JSON serializers and parsers. | |
* | |
* <p> | |
* Can be applied to Java types. | |
* | |
* <p> | |
* Can be used for the following: | |
* <ul class='spaced-list'> | |
* <li> | |
* Wrap bean instances inside wrapper object (e.g. <c>{'wrapperAttr':bean}</c>). | |
* </ul> | |
*/ | |
@Documented | |
@Target({TYPE}) | |
@Retention(RUNTIME) | |
@Inherited | |
public @interface Json { | |
/** | |
* Wraps beans in a JSON object with the specified attribute name. | |
* | |
* <p> | |
* Applies only to {@link ElementType#TYPE}. | |
* | |
* <p> | |
* This annotation can be applied to beans as well as other objects serialized to other types (e.g. strings). | |
* | |
* <h5 class='figure'>Example:</h5> | |
* <p class='bcode w800'> | |
* <ja>@Json</ja>(wrapperAttr=<js>"myWrapper"</js>) | |
* <jk>public class</jk> MyBean { | |
* <jk>public int</jk> f1 = 123; | |
* } | |
* </p> | |
* | |
* <p> | |
* Without the <ja>@Json</ja> annotations, serializing this bean as JSON would have produced the following... | |
* <p class='bcode w800'> | |
* { | |
* f1: 123 | |
* } | |
* </p> | |
* | |
* <p> | |
* With the annotations, serializing this bean as JSON produces the following... | |
* <p class='bcode w800'> | |
* { | |
* myWrapper: { | |
* f1: 123 | |
* } | |
* } | |
* </p> | |
*/ | |
String wrapperAttr() default ""; | |
} |