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VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages
book

VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages

by Ueli Wahli, Greg Behrend, Daniel Peter
March 2000
Beginner to intermediate content levelBeginner to intermediate
472 pages
11h 17m
English
IBM Redbooks
Content preview from VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and Java Server Pages
Chapter 12. Custom Queries 225
Here the argument is denoted by the :V1 variable. When the query is invoked
in an application, an array of arguments is passed to the query method. The
orderof elementsinthis array corresponds tothe orderof the variables in the
SQL string statement. At runtime these variables are simply replaced with
the actual values, that is, the statement is modified before it is submitted to
the database system.
Query Methods
At first glance, defining a query method for your own custom query might
seem like a daunting task. As described in this section, query methods are
simple structures in the services level of the Persistence Frame ...
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Publisher Resources

ISBN: 0738415820Purchase bookAdditional Material