A job is a sequence of operations that has to be executed asynchronously by the application. It's possible to schedule a job at a specific time or interval, which means that jobs can be automatically triggered (scheduled when the application starts). It's also possible to schedule a job at runtime: ...
In a Web application you may need to specify a piece of business logic that is executed periodically.
In this case, the execution is not triggered directly by a user interaction on the Web application, but is triggered automatically at a specific timestamp. WebRatio Platform lets you model this ...
Reloading an entire page can be expensive in terms of computational costs: it means recomputing all the components contained on a page and the queries included in them. This operation can take some time and have a significant impact on performance. For this reason, a partial refresh of the page can ...
Popups are a commonly used rich interaction. By using a popup you can open a new layer above the current main page. If the popup is set as “Modal”, it also prevents any interaction with the rest of the web application. When the popup window is closed, the underlying main page becomes active again, a...
Rich forms are forms in which the user interaction triggers an event and the execution of a specific business logic. The aim is facilitate the form compilation and improve the user’s experience in the web Application. Many events can be managed to enrich the user’s interaction with a form, and some ...
Autocompletion allows you to specify an information source to be used as a suggestion for the fill-in of a text field. In this way, the user can type only the initial letters of the word or of the value to be inserted in the field. The Web application shows different options from which the user can ...
The Periodical Page Refresh is a feature that allows you to add a trigger to a navigation flow with the selective refresh enabled. In this way, it’s possible to automate clicking on a link to update some information in real time. This feature is very useful when you need to execute a business logic ...
The Excel Style is a predefined style available in WebRatio Platform. This style allows to export the content of a modeled page in an Excel spreadsheet file. The generation process creates a JSP page containing XML code that is processed by a custom tag that invokes the Apache POI engine to render t...
The Domain Model Utility Component is available starting from the WebRatio 5.1 version.
It's a hybrid unit, which means that it can be placed in every View (Site View, Module Definitions View, Service View).
It permits to retrieve information about entities and relationship of the Domain Model....
Tomcat Application Server is able to manage by default all the ISO-8859-1 characters to encode URIs.
If your Application uses characters that does not belong to this character set, you have to configure the Application Server or your Application in order to correctly manage them.
If not config...
Let's suppose that you want to deploy your project directly on the remote host that will contain the Web Application. You have to configure the Deploy Configuration that allows you to obtain the final Web Application package in order to be able also to upload the package on the remote host. This art...
The "java.lang.ClassFormatError: Invalid method Code length" error, is an error that you can get generating the layout of your Web Project, it means that you used a template in the Web Project that is too large to be compiled.
Read this article to discover more about how to handle and prevent this ...
The UnsupportedClassVersionError can occurr in a Web Project that uses custom components, such as custom validation rules, servlets or listeners.
All these components are developed using a different project (e.g. a Java project) in which you have to compile the Java classes and create a jar file...
The purpose of this article is to provide the basics to operate with styles in WebRatio. A Style Project contains the layout templates needed to generate the graphical elements of your Web Application; the project includes also the resources used in the templates.
An important aspect of a Web Application is the visual identity it has.
The Visual Identity represents all the graphic widgets that you may want to use in order to make the Web Application good looking and in order to have a great user experience.
Since it's possible to specify a personalized ...