javax.json.bind.annotation.JsonbNillable Maven / Gradle / Ivy
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package javax.json.bind.annotation;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.PACKAGE;
import static java.lang.annotation.ElementType.TYPE;
/**
* Specifies how fields having null values are serialized into JSON.
*
* There are two possible values which can be specified. In case of true, fields are serialized as
* key/value pair with value null. In case of false, fields will not be serialized (default behaviour).
*
* Annotation can be specified on type or on package and affects all underlying properties and classes.,
*
* For similar functionality on a property level see {@link JsonbProperty}.
*
* @since JSON Binding 1.0
*/
@JsonbAnnotation
@Retention(RetentionPolicy.RUNTIME)
@Target({ANNOTATION_TYPE, TYPE, PACKAGE})
public @interface JsonbNillable {
/**
* Switches on/off serialization of properties with null value.
*
* @return True if field with null value should be serialized as key/value pair into JSON with null value.
*/
boolean value() default true;
}