Apache Struts 2 Plugin Registry > Home > OVal Plugin
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Name OVal Plugin
Publisher Apache Software Foundation
License Open Source (ASL2)
Version Bundled with Struts from 2.1.7 on
Homepage http://cwiki.apache.org/confluence/display/WW/OVal+Plugin

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Overview

OVal is a pragmatic and extensible validation framework for any kind of Java objects (not only JavaBeans). Constraints can be declared with annotations (@NotNull, @MaxLength), POJOs or XML.Custom constraints can be expressed as custom Java classes or by using scripting languages such as JavaScript, Groovy, BeanShell, OGNL or MVEL.