Object Oriented Design

Download WebWork in Action (In Action) by Patrick Lightbody PDF

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By Patrick Lightbody

WebWork is helping builders construct well-designed purposes fast by means of growing re-usable, modular, web-based purposes. WebWork in motion is the 1st e-book to concentration totally on WebWork. Like a real "Action" booklet, it's either an academic on WebWork and a sourcebook for its use in not easy, real-world purposes. The e-book is going into enormous intensity on easy methods to get fascinating internet positive aspects with WebWork. It makes use of an identical simple (continuing) instance as in Manning's Hibernate in motion to teach the best way to combine WebWork with the preferred Hibernate persistance framework. even if Java was once (correctly) touted because the subsequent colossal programming language, it wasn't till the creation of J2EE and Servlets that its use particularly took off. but, despite the large acclaim for JSPs and Servlets, it used to be by no means effortless for builders to quick create re-usable, modular web-based purposes. no longer lengthy after the advent of JSPs, WebWork sought to resolve these very difficulties and has been supporting millions of builders ever on the grounds that. WebWork is a web-application framework utilized by those who take into account that someplace been "just get it performed, irrespective of how grotesque" and "make it excellent" lies their best option. WebWork is helping builders construct functions fast, yet its designated layout additionally we could builders construct beautifully-designed purposes.

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Then, add logic to display an error message as well as make the textfield input display the previous name in the event of an error. action"> "/>

This code adds two significant things to the JSP. First, if an error message exists, it’s printed in a red font. You use the ww:if tag to see whether the message property exists; if it does, you print it. If a user goes to this page directly, the test fails, and no error message is reported—exactly the behavior you’re striving for.

Xml All the source code we present in this book is found in the src directory. web package. JSPs and Velocity templates, as well as any other webspecific files, are found in src/webapp. properties, are located in src/java; they’re packaged into a single JAR file, which is included in WEB-INF/lib when the entire WAR is packaged. Every JAR required for the application is found in lib/core. TXT file in lib/ resin. com> Summary 17 running Ant or packaging the application as a WAR. The instructions also explain how to download additional Resin JAR files needed to launch the application quickly.

More than anything, the developers of WebWork wanted to provide a framework that works for you, not against you. com/bauer). Hibernate is an Object-Relational Mapping (ORM) framework that provides easy database access. The authors, Christian Bauer and Gavin King, demonstrated the features of Hibernate using an online auction application named CaveatEmptor. Although CaveatEmptor is a complete application, it lacks any sort of web-based interface. In this book, we’ll demonstrate how we used the features of WebWork to add a web front end on top of the original CaveatEmptor code.

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