ObjectDB ObjectDB

jdoCopyKeyFieldsFromObjectId(fm, oid) - JDO PersistenceCapable's method

void jdoCopyKeyFieldsFromObjectId(
  ObjectIdFieldConsumer fm,
  Object oid

Copy fields to an outside consumer from the key fields in the ObjectId. This method is generated in the PersistenceCapable class to generate a call to the field manager for each key field in the ObjectId. For example, an ObjectId class that has three key fields (int id, String name, and Float salary) would have the method generated:

void copyKeyFieldsFromObjectId

(ObjectIdFieldConsumer fm, Object objectId) {

EmployeeKey oid = (EmployeeKey)objectId;

fm.storeIntField (0, oid.id);

fm.storeStringField (1, oid.name);

fm.storeObjectField (2, oid.salary);


The implementation is responsible for implementing the ObjectIdFieldConsumer to store the values for the key fields.

fm - the field manager that receives the field values.
oid - the ObjectId source of the copy.
JDO 1.0