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When a procedure is called from another procedure, this method returns the value of the specified OUT/INOUT parameter of the called procedure as a Java object. This returned object must be typecasted to the appropriate type.
Format
public Object getParam(int field, short dType)
Returns
Returns the Object specified by the field value.
Parameters
field
An integer that specifies which argument value of the called procedure is to be returned (1 denotes the first parameter, 2 denotes the second, and so on).
If the specified parameter does not exists, FairCom DB SQL returns an error:
(error(-20145): Invalid field reference.)
dType
The expected data type of the returning parameter.
Throws
DhSQLException
Example
CREATE PROCEDURE swap_proc(IN param1 INTEGER,
OUT param2 INTEGER,
INOUT param3 INTEGER)
BEGIN
param2 = param3;
param3 = param1;
END
CREATE PROCEDURE call_swap_proc()
BEGIN
Integer val1 = new Integer(10);
Integer val2;
Integer val3 = new Integer(20);
SQLPStatement pstmt = new SQLPStatement("CALL swap_proc(?,?,?)");
pstmt.registerOutParam(2, INTEGER);
pstmt.registerOutParam(3, INTEGER);
pstmt.setParam(1, val1);
pstmt.setParam(3, val3);
pstmt.execute();
val2 = (Integer)pstmt.getParam(2, INTEGER);
val3 = (Integer)pstmt.getParam(3, INTEGER);
// process the val2 and val3
END
