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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,METHOD,FIELD}) | |
@Retention(RUNTIME) | |
@Inherited | |
public @interface Json { | |
/** | |
* Dynamically apply this annotation to the specified classes/methods/fields. | |
* | |
* <p> | |
* Used in conjunction with the {@link JsonConfig#applyJson()}. | |
* It is ignored when the annotation is applied directly to classes/methods/fields. | |
* | |
* <p> | |
* The valid pattern matches are: | |
* <ul> | |
* <li>Classes: | |
* <ul> | |
* <li>Fully qualified: | |
* <ul> | |
* <li><js>"com.foo.MyClass"</js> | |
* </ul> | |
* <li>Fully qualified inner class: | |
* <ul> | |
* <li><js>"com.foo.MyClass$Inner1$Inner2"</js> | |
* </ul> | |
* <li>Simple: | |
* <ul> | |
* <li><js>"MyClass"</js> | |
* </ul> | |
* <li>Simple inner: | |
* <ul> | |
* <li><js>"MyClass$Inner1$Inner2"</js> | |
* <li><js>"Inner1$Inner2"</js> | |
* <li><js>"Inner2"</js> | |
* </ul> | |
* </ul> | |
* <li>Methods: | |
* <ul> | |
* <li>Fully qualified with args: | |
* <ul> | |
* <li><js>"com.foo.MyClass.myMethod(String,int)"</js> | |
* <li><js>"com.foo.MyClass.myMethod(java.lang.String,int)"</js> | |
* <li><js>"com.foo.MyClass.myMethod()"</js> | |
* </ul> | |
* <li>Fully qualified: | |
* <ul> | |
* <li><js>"com.foo.MyClass.myMethod"</js> | |
* </ul> | |
* <li>Simple with args: | |
* <ul> | |
* <li><js>"MyClass.myMethod(String,int)"</js> | |
* <li><js>"MyClass.myMethod(java.lang.String,int)"</js> | |
* <li><js>"MyClass.myMethod()"</js> | |
* </ul> | |
* <li>Simple: | |
* <ul> | |
* <li><js>"MyClass.myMethod"</js> | |
* </ul> | |
* <li>Simple inner class: | |
* <ul> | |
* <li><js>"MyClass$Inner1$Inner2.myMethod"</js> | |
* <li><js>"Inner1$Inner2.myMethod"</js> | |
* <li><js>"Inner2.myMethod"</js> | |
* </ul> | |
* </ul> | |
* <li>Fields: | |
* <ul> | |
* <li>Fully qualified: | |
* <ul> | |
* <li><js>"com.foo.MyClass.myField"</js> | |
* </ul> | |
* <li>Simple: | |
* <ul> | |
* <li><js>"MyClass.myField"</js> | |
* </ul> | |
* <li>Simple inner class: | |
* <ul> | |
* <li><js>"MyClass$Inner1$Inner2.myField"</js> | |
* <li><js>"Inner1$Inner2.myField"</js> | |
* <li><js>"Inner2.myField"</js> | |
* </ul> | |
* </ul> | |
* <li>A comma-delimited list of anything on this list. | |
* </ul> | |
* | |
* <ul class='seealso'> | |
* <li class='link'>{@doc juneau-marshall.DynamicallyAppliedAnnotations} | |
* </ul> | |
*/ | |
String on() default ""; | |
/** | |
* 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 ""; | |
} |