ORA-30625: method dispatch on NULL SELF argument is disallowed

Question

I have streams setup with table rules.( 3 tiers). It is working fine, besides for one table when insert record, apply has error "ORA-30625: method dispatch on NULL SELF argument is disallowed". I did include all columns in supplemental log group always. Is any limit for max columns for Oracle Streams. This table has 137 columns and I created 6 supplemental log groups.
Please help

Answer 1

Hi,
No restrictions on number of columns in 10.2. Do you have any rule transformation or dml handler?
Check also on your bdump if the apply generated any trace file that will allow you to identify the root cause of this error.
Here is an explanation of why that error happens:
The following error occurs when passing an uninitialized object to an Object's member procedure/function:
ORA-30625: method dispatch on NULL SELF argument is disallowed
The following illustrates the error by first creating the Object specification. Notice there is one member procedure "initialize_object" that passes in SELF.
CREATE OR REPLACE TYPE role_type AS OBJECT (
role_name VARCHAR2(30),
MEMBER PROCEDURE initialize_object(SELF IN OUT role_type));
The next step is to create the body of the Object's member procedure. There is no need for any actual code as the error occurs when the NULL is attempted to be passed.
CREATE OR REPLACE TYPE BODY role_type AS
MEMBER PROCEDURE initialize_object (SELF IN OUT role_type) IS
BEGIN
NULL;
END initialize_object;
END;
The following anonymous block passes in a NULL (Uninitialized Object) to the member procedure initialize_object.
DECLARE
V_TEMP role_type;
BEGIN
ROLE_TYPE.initialize_object(V_temp);
END;
ERROR at line 1:
ORA-30625: method dispatch on NULL SELF argument is disallowed
ORA-06512: at line 4
The example has nothing to do with streams but maybe you are trying to invoke an error handler or dml handler that is causing this issue.