Getting Startedwith pureQuery

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Getting Started with pureQuery
Customizing output:
• If you are executing an SQL SELECT statement, and you want to
customize the way pureQuery sets the parameters to the SQL statement,
use a query method that accepts an object of type ParameterHandler
as a parameter. Note that this method also has a
ResultHandler parameter.
• If you are executing an SQL stored procedure call, and you want to
customize the way pureQuery sets the parameters to the SQL call
statement, use the call method that accepts an object of type
ParameterHandler as a parameter. Note that this method also has a
CallHandlerWithParameters parameter.
• If you are executing an SQL SELECT statement, and you want to
customize how each row is returned, use one of the queryXXX methods
that accept an object of type RowHandler as a parameter. Use
the queryXXX method that has the return type that you want.
• If you are executing an SQL SELECT statement, and you want to use a
type of object to contain all of the rows that is not one of pureQuery's built
in objects, use one of the query methods. These methods have a
ResultHandler parameter.
• If you are executing an SQL stored procedure call, and you want to use
an object other than pureQuery's
com.ibm.pdq.runtime.StoredProcedureResult to contain the
query results, use one of the call methods that accepts an object of type
CallHandlerWithParameters as a parameter.
13.2.1 In practice: Specify a handler using the inline style -- Complete the
“Company Employees” screen
The “Company Employees” screen displays all of the employees in the company in pages
of 10 employees each. Let’s use the IteratorPagingResultHandler to retrieve
the employees, one page at a time. Modify the displayAllEmployees method in
hrm.inProgress.pdqInlineStyleWithHandlers.HumanResourcesManager.
You will also need to modify the utility method selectPageOfEmployees, which is
located in the same class.
13.2.1.1 Use pureQuery to create an Iterator object that contains
the information about the employees
In order to get information about all the employees in the company, we need to execute a
query against the database. We will use the query shown in Listing 13.1, which will select
all the employees and sort them by their names.