There are two tables TableA and TableB.

TableA
id (pk), col_A1, col_A2
--------------------------------------------
1, 1000, col_a_val1
2, 1001, col_a_val2


TableB
id (pk), col_B (unique)
-----------------------
1000, col_b_val1
1001, col_b_val2

## TableA.col_A1 references TableB.id

public class TableAObj
{
private String id;
private String colA1;
private String colA2;

}

TableAObj is populated with the below values
- id = 1
- colA1 = col_b_val1;
- colA2 = col_a_val1

When TableAObj is persisted it should stamp the pk corresponding to “col_b_val1” (1000) in col_A1 of TableA. Also when TableAObj is loaded from database colA1 field should contain "col_b_val1" instead of 1000.

How to achieve this using hibernate mapping?