JBoss 4.0.5 - EJB3 - Entity Beans
** The problem is - the foreign key column is not set on the newInstance Row.
thus the inserted value is NULL.
There is an new instance of a class that is being worked on as follows:
aggregate = // retrieve / find in database - ie: already persisted
| newInstance = new NewInstance();
| newinstance.setValue(aggregate)
| em.persist(newInstance)
newInstance is saved, as a new row, in the RDBMS just fine; however, the
aggregate_fk (see below for table) is set to null - actually I think it is not
even in the insert statement.
NewInstance.get/setValue are defined below:
@OneToOne(cascade=CascadeType.ALL)
| @JoinColumn(name="aggregate_fk", insertable=false, updatable=false,
referencedColumnName="pk")
| public Aggregate getValue() { return aggregate; }
NewInstance Table (Pseudo Notation for sql)
integer pk
| char(10) column1
| integer aggregate_fk -- foreign key reference to aggregate table
Aggregate is actually a lookup table as below
integer pk
| char(15) key
| varchar(64) value
*Note: this table is referenced by many other tables in the system; therefore,
it cannot contain annotations of OneToMany (etc..) to a specific other table.
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