Controller"

From Documentation
m
m
Line 8: Line 8:
 
For typical database access, the glue logic (i.e., control) can be handled by a generic feature called [[ZK Developer's Reference/Data Binding|Data Binding]]. In other words, the read and write operations can be handled automatically by a generic Data Binding, and you don't need to write the glue logic at all.
 
For typical database access, the glue logic (i.e., control) can be handled by a generic feature called [[ZK Developer's Reference/Data Binding|Data Binding]]. In other words, the read and write operations can be handled automatically by a generic Data Binding, and you don't need to write the glue logic at all.
  
In this section we will discuss how to implement a custom controller (aka., a composer).
+
In this section we will discuss how to implement a custom controller (which is called a composer in ZK terminology).
  
 
{{ZKDevelopersReferenceHeadingToc}}
 
{{ZKDevelopersReferenceHeadingToc}}

Revision as of 06:59, 26 November 2010

Overview

The controller is a Java program that is used to glue UI (view) and Data (model) together.

For a simple UI, there is no need of controller. For example, the data of a Listbox could be abstracted by implementing ListModel.

For typical database access, the glue logic (i.e., control) can be handled by a generic feature called Data Binding. In other words, the read and write operations can be handled automatically by a generic Data Binding, and you don't need to write the glue logic at all.

In this section we will discuss how to implement a custom controller (which is called a composer in ZK terminology).



Version History

Last Update : 2010/11/26

Version Date Content
     


Last Update : 2010/11/26


Copyright © Potix Corporation. This article is licensed under GNU Free Documentation License.