TAILIEUCHUNG - WebSphere Studio Application Developer Version 5 Programming Guide part 52

WebSphere Studio Application Developer part 52 provides integrated development tools for all e-business development roles, including Web developers, Java developers, business analysts, architects, and enterprise programmers. The customizable, targeted, role-based approach of WebSphere Studio Application Developer will be characteristic of all new products built on the WebSphere Studio Workbench. It is well integrated with WebSphere Application Server and provides built-in server test environments that can be used for testing and profiling Web applications | As you make changes to either the Design view or the Source view Visual Editor will maintain the other model for you by performing synchronization. The status of the synchronization of the two models can be seen on the right-hand side of the status bar at the bottom of the Workbench window Figure 14-16 . In 5ync Figure 14-16 Synchronization status - In Sync There is a performance overhead associated with synchronizing the two models so the processes to do this are run in background threads on a delay timer. If changes are made to a model by either manipulating the Java beans in a view or by editing the source the other model needs to be updated or it will no longer be synchronized. To show that the models are not synchronized the status label changes from In Sync to Out of Sync Figure 14-17 . Figure 14-17 Synchronization status - Out of Sync After a period of inactivity for example when you have stopped typing code in the editor synchronization will occur. While synchronization is taking place the flashing arrow will show the direction the update is occurring. For example the up arrow represents changes from the source to the Java beans model and the down arrow vice versa. You can also disable synchronization by pressing the pause button between the two arrows. This is a good idea when you wish to make a number of large changes to the source without incurring the overhead of the synchronizer. Note While the synchronizer is paused you can make changes to the source without any overhead of parsing source but you can no longer make changes to the JavaBeans model. All changes in the Design view the Java Beans view or the Properties view will not be applied. While the source code is being parsed and analyzed the synchronizer may determine that the source contains errors and rather than trying to update the JavaBeans model it will wait for the errors to be corrected. If this occurs the button will become pressed automatically and the graphic will be changed to this .

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