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iBatis and MyBatis support custom types to override JDBC and other types when using the iBatis or MyBatis frameworks. A custom data type gives you the ability to deal with any kind of special input and output handling you may need for a database data type. For example, a User Defined Type (UDT)  that represents a point would require an X and Y Position to be entered for input and an X and Y position to be retrieved from the database. The custom data type gives you a clearly defined programmatic mechanism to do this.

iBatis is now called MyBatis (iBatis 3.0). MyBatis is no longer sponsored by Apache. It is now supported on Google code. The MyBatis framework is a lightweight data mapping framework and persistence API. It couples objects with stored procedures or SQL statements using an XML descriptor.  The Teradata Plug-in for Eclipse allows you to switch between creating projects that use MyBatis or iBatis using the Teradata Project preferences. When you switch to use MyBatis, you can use new features like User Generated Keys.

User Generated Keys are unique identifiers returned from MyBatis during an insert operation. This tutorial will go through creating a Web service using user generated keys with MyBatis.

So you told your boss about the cool “Consumer Credit Score” SQL algorithm you wrote and all she said was “Great, integrate it into the Call Center application this weekend.” Now all you have to do is turn your SQL algorithm into a BI Web service ready for integration with their Web application... Simple right?

CRUD is defined as the following functions of persistent storage:

  • Create — Insert a row into a Database Table
  • Read — Selecting information from a Database Table
  • Update — Update a row for a Database Table
  • Delete — Remove a row from a Database Table

The iBatis CRUD Wizard will generate the SQL and the iBatis code for all the CRUD operations for a selected database table in the Teradata Plug-in for Eclipse.  The generated iBatis SQL map can then be used to create a Web Service or used to create a Java application that uses the iBatis frame work. This will give you a quick and easy way to create an application that can do basic operations on a Teradata database table.

The iBatis DAO with Web Services Wizard will generate a Web Service from an iBatis SQL Map. The wizard derives all of the information needed from the iBatis SQL Map to generate the following components to create a Web service:

  • DAO (Data Access Object)
  • WSDL (Web Service Definition Language)
  • XSD (XML Schema Definition)
  • Spring Configuration files

The wizard will then use the Eclipse Web Tools Platform (WTP) and Apache Axis to generate the server and client classes for the Web service. The generated classes will include code that supports Query Bands via the Teradata Access Session Manager.

 

The iBatis framework is a lightweight data mapping framework and persistence API. It couples objects with stored procedures or SQL statements using a XML descriptor. The iBatis SQL Map wizard allows you to quickly generate an iBatis SQL map for a given SQL statement or stored procedure.

The Teradata project is an extension of a Java project in Eclipse and it can be created by using the Teradata Project Wizard. This new type of project is set up based on Teradata Standards which can be overridden with preferences. The Teradata project will give you access to Teradata libraries.