Getting Startedwith pureQuery

222
Getting Started with pureQuery
If the functionality of pureQuery’s parameter markers does not meet the needs of your
application, you can write an implementation of the
com.ibm.pdq.runtime.handlers.ParameterHandler interface to set the
parameters appropriately.
// Scalars
String deptNo = "C01";
String managerEmpNo = "000030";
// pureQuery bean
DepartmentBean dept = new DepartmentBean ();
dept.setDepartmentNumber ("C01");
dept.setManagerEmployeeNumber ("000030");
// Map
Map map = new HashMap ();
map.put ("departmentNumber", "C01");
map.put ("managerEmployeeNumber", "000030");
Listing 11.12 - Definitions of the objects referenced in the "Sample usage" column of
Table 11.1
Marker
Types of
objects in
method
parameters
Meaning
Sample usage
? Scalars Directs pureQuery to use
the value of one of the
method parameters as
the value of this SQL
parameter. The first ?
represents the first
method parameter, the
second ? represents the
second method
parameter, and so forth.
?n Scalars Directs pureQuery to use
the value of the nth
method parameter as
the value of the SQL
parameter. ?1
represents the first
@Select(sql = "SELECT * FROM
EMPLOYEE WHERE WORKDEPT = ?
AND EMPNO != ?")
List
selectDeptEmployees (String
deptNo, String managerEmpNo);
@Select(sql = "SELECT * FROM
EMPLOYEE WHERE WORKDEPT = ?1
AND EMPNO != ?2")
List
selectDeptEmployees (String
deptNo, String managerEmpNo);