bidirectional-relation - w3toppers.com

JPA Updating Bidirectional Association

The question is should I apply merge on both sides as follows, and an I avoid the second merge with a cascade? You can use the cascade annotation element to propagate the effect of an operation to associated entities. The cascade functionality is most typically used in parent-child relationships. The merge operation is cascaded to … Read more

Jackson – serialization of entities with birectional relationships (avoiding cycles)

Jackson 2.0 does support full cyclic object references. See “Jackson 2.0 released” (section ‘Handle Any Object Graphs, even Cyclic ones!’) for an example. Basically, you will need to use new @JsonIdentityInfo for types that require id/idref style handling. In your case this would be both Parent and Child types (if one extends the other, just … Read more