Trace: • How to Use Vert.x
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
applications:custom_errorhandling [2019/08/06 13:02] admin |
applications:custom_errorhandling [2019/08/06 13:04] admin |
||
|---|---|---|---|
| Line 62: | Line 62: | ||
| </file> | </file> | ||
| - | So, our work-screen example contains a new label in the SOUTH area (the bottom of the screen). The label will be hidden initially in **onLoad()**. Our screen is now ready to show error messages, but our application must be changed. To do this, we need a [[vaadin:customize_application|custom application]]. | + | So, our work-screen example contains a new label in the SOUTH area (the bottom of the screen). The label will be hidden initially in **onLoad()**. \\ |
| + | Our screen is now ready to show error messages, but our application must be changed. To do this, we need a [[vaadin:customize_application|custom application]]. | ||
| Our application contains following code: | Our application contains following code: | ||
| Line 104: | Line 105: | ||
| } | } | ||
| </file> | </file> | ||
| - | We collect all occurred Exceptions and show one message at the end. We iterate through all opened work-screens and check if the interface is implemented. In our example, every work-screen has to implement the interface IErrorHandler. A better solution would be a custom work-screen base class, e.g. | + | We collect all occurred Exceptions in a list - **liErrors** - and show one message at the end, see **showErrorMessages**. \\ |
| + | \\ | ||
| + | In **showErrorMessages**, we iterate through all opened work-screens and check if our interface is implemented. In our example, every work-screen has to implement the interface **IErrorHandler**. A better solution would be a custom work-screen base class, e.g. | ||
| <file java> | <file java> | ||