Hi, I am using toplink from oracle to support JPA. I have the following requirement... i have to map same column for multiple properties using @joincolumn annotation.. eg its something like this
@joincolumn(name="PARENT_RECORD_ID") private Drug drug @joincolumn(name="PARENT_RECORD_ID") private Reaction reaction PARENT_RECORD_ID is nothing but primary key of parent table. but while accessing the application i am getting the following exception.... MULTIPLE_WRITE_MAPPINGS_FOR_FIELD Cause: Multiple writable mappings for the field fieldName are defined in the descriptor. Exactly one must be defined as writable; the others must be specified as read-only. When multiple write mappings are defined for the field, TopLink is unable to choose the appropriate mapping for writing the value of the field in the database row. Therefore, the exception is raised during the validation process of descriptors. Action: Make one of those mappings read-only But i cannot make read only, if i make read only then while inserting new records it will be problem please can anyone provide the solution for this... Regards, Saravanan. -- View this message in context: http://www.nabble.com/How-to-map-multiple-properties-to-same-column-as-writable-in-jpa-tf4155235.html#a11822480 Sent from the OpenJPA Developers mailing list archive at Nabble.com.
