package com.fasterxml.jackson.annotation;

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

Annotation used to indicate that annotated property is part of two-way linkage between fields; and that its role is "parent" (or "forward") link. Value type (class) of property must have a single compatible property annotated with JsonBackReference. Linkage is handled such that the property annotated with this annotation is handled normally (serialized normally, no special handling for deserialization); it is the matching back reference that requires special handling

All references have logical name to allow handling multiple linkages; typical case would be that where nodes have both parent/child and sibling linkages. If so, pairs of references should be named differently. It is an error for a class too have multiple managed references with same name, even if types pointed are different.

Note: only methods and fields can be annotated with this annotation: constructor arguments should NOT be annotated, as they can not be either managed or back references.

Author:tatu
/** * Annotation used to indicate that annotated property is part of * two-way linkage between fields; and that its role is "parent" (or "forward") link. * Value type (class) of property must have a single compatible property annotated with * {@link JsonBackReference}. Linkage is handled such that the property * annotated with this annotation is handled normally (serialized normally, no * special handling for deserialization); it is the matching back reference * that requires special handling *<p> * All references have logical name to allow handling multiple linkages; typical case * would be that where nodes have both parent/child and sibling linkages. If so, * pairs of references should be named differently. * It is an error for a class too have multiple managed references with same name, * even if types pointed are different. *<p> * Note: only methods and fields can be annotated with this annotation: constructor * arguments should NOT be annotated, as they can not be either managed or back * references. * * @author tatu */
@Target({ElementType.ANNOTATION_TYPE, ElementType.FIELD, ElementType.METHOD}) @Retention(RetentionPolicy.RUNTIME) @JacksonAnnotation public @interface JsonManagedReference {
Logical have for the reference property pair; used to link managed and back references. Default name can be used if there is just single reference pair (for example, node class that just has parent/child linkage, consisting of one managed reference and matching back reference)
/** * Logical have for the reference property pair; used to link managed and * back references. Default name can be used if there is just single * reference pair (for example, node class that just has parent/child linkage, * consisting of one managed reference and matching back reference) */
public String value() default "defaultReference"; }