Invalid input syntax for type boolean???? ahhhhhh

Question

Hey all,
Has anyone come accross the 'invalid input syntax for type boolean' error - its driving me crazy trying to figure out what is wrong with my function/java code!!!
The postgres (using 8.1) function is:
CREATE OR REPLACE FUNCTION selectstaffroles("varchar")
RETURNS refcursor AS
$BODY$
DECLARE
ResultSet refcursor;
whereClause ALIAS FOR $1;
BEGIN
OPEN ResultSet FOR
EXECUTE 'SELECT role.* FROM role left join staffrole on staffrole.roleid=role.roleid WHERE ' || whereClause;
RETURN Resultset;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
WhereClause sent via java code =
c.colStaffRoleStaffID+"="+staff.getUserStaffID() -which basically is staffid=2
Once this query is executed via the java code i get the 'invalid input syntax for type boolean: "staffid=2" ' error. However if I type select selectstaffroles('staffid=2') using pgAdmin SQL window - no problems!
ANY HELP or suggestions will be greatly appreciated! - Thanks in advance!
Eli

Answer 1

Ahh soz - silly mistake which was corrected pretty much as soon as post was posted!
Solution:
Within another method the where clause sent to the database function was enclosed within quotes! Removing quotes = problem resolved!