JPA join on legacy database non-primary key
Question
I have the following tables in a legacy database:
Table1
+ Table1ID PK
+ Table1Code
Table2
+ Table2ID PK
+ Table1Code
The convention is that there is only 1 Table1Code for each Table1ID. Table2 has a one to many relationship with Table1.
I want to reference them both as JPA objects. Is this possible using @OneToMany and specifying the @JoinColumn s?
1 answers
solution1
0 ACCPTED 2011-12-12 10:09:20
Yes, you just have to use the referencedColumnName attribute of the JoinColumn annotation:
@OneToMany
@JoinColumn(name = "Table1Code", referencedColumnName = "Table1Code")
private List<Table2> table2s;
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