Developer Notes - ITwelzel.biz

The following script creates and populates our Address database:
create table address(street varchar,city varchar,state varchar,zip varchar)
insert into address (street,city,state,zip) values('123 Anywhere
St.','Hippsville','Utah','84321')
insert into address (street,city,state,zip) values('456 Nowhere
Ave.','Mytown','Utah','84789')
insert into address (street,city,state,zip) values('111 S. 222.
E.','Yourtown','Utah','84654')
set autocommit true
The following script creates and populates our Company database:
create table company(name varchar,industry varchar)
insert into company (name,industry) values('Acme','Textiles')
insert into company (name,industry) values('Company
B','Manufacturing')
set autocommit true
Conclusion
Developer Notes
This AppNote introduced how the DAO strategy supports multiple JDBC
databases with a single DAO class. It reduces redundant code and makes new
database types simpler to include. To support a new database type, you merely
add SQL statements for that database type to an XML configuration file, update
the environment entry to use the new type, and then re-initialize the DAO.
In the next AppNote in this series, we will discuss how our DAO framework can
also be used to simplify and unify access to Web service provider sources.
For Additional Information
For more information about the technologies discussed in this AppNote, refer to
the following resources:
• For more information about JDBC, visit
http://java.sun.com/products/jdbc/learning.html.
• For more information about the DAO pattern, visit
http://java.sun.com/blueprints/patterns/DAO.html.
• For more information about the hsqldb Database Engine, visit
http://hsqldb.sourceforge.net/.
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