How to limit numeric columns to 32-bit and 64-bit values

Question

Hi,
Is it possible to somehow limit the column datatype to 32-bit (or 64-bit) signed integer range of positive values, so that the permitted values would be within 0.. 2,147,483,647 for the 32-bit and 0.. 9,223,372,036,854,775,807 for the 64-bit. The reason is that we are using Java datatypes int and long to read data from the database and would like to constrain the maximum values at the database level.
An approach would probably be to define columns as NUMBER(10, 0) (or NUMBER(19, 0) for 64-bits) and add a CHECK constraint which would guarantee the value is within the boundaries, but is there any other solution? Unfortunately constrained datatypes http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10472/datatypes.htm#CHDBBCIE are available only in PL/SQL.
Thanks in advance.
Regards,
Jure

Answer 1

Here is an example with an object type:
SQL> CREATE TABLE TEST(TXT VARCHAR2(5), N INT_32);
Table created.
SQL> CREATE OR REPLACE TYPE INT_32
  2  IS OBJECT
  3  (
  4          val     NUMBER(10,0)
  5  ,       CONSTRUCTOR FUNCTION INT_32 (val NUMBER) RETURN SELF AS RESULT
  6  );
  7  /
Type created.
SQL> CREATE OR REPLACE TYPE BODY INT_32
  2  AS
  3          CONSTRUCTOR FUNCTION INT_32 (val NUMBER)
  4          RETURN SELF AS RESULT IS
  5          BEGIN
  6                  IF val NOT BETWEEN 0 AND 10 OR val IS NULL THEN
  7                          RAISE_APPLICATION_ERROR(-20001,'Out of bounds!');
  8                  ELSE
  9                          SELF.val := val;
10                  END IF;
11                  RETURN;
12          END;
13  END;
14  /
Type body created.
SQL> CREATE TABLE TEST(TXT VARCHAR2(5), N INT_32);
Table created.
SQL> INSERT INTO TEST VALUES('Test',INT_32(5));
1 row created.
SQL> INSERT INTO TEST VALUES('Test',INT_32(-1));
INSERT INTO TEST VALUES('Test',INT_32(-1))
ERROR at line 1:
ORA-20001: Out of bounds!
ORA-06512: at "TEST.INT_32", line 7
SQL> INSERT INTO TEST VALUES('Test',INT_32(11));
INSERT INTO TEST VALUES('Test',INT_32(11))
ERROR at line 1:
ORA-20001: Out of bounds!
ORA-06512: at "TEST.INT_32", line 7
SQL> SELECT TXT, T.N.VAL FROM TEST T;
TXT                  N.VAL
Test                     5