WAS v8.5 > Migrate, coexist, and interoperate > Migrating applications that use the Bean Validation API
Migration of JPA applications and bean validation
The Java Persistence API (JPA) 2.0 provides support for the Bean Validation API so that data validation can be done at run time. This topic includes best practices when we want to deploy v7 Feature Pack for OSGi and JPA 2.0 applications on v8.x.
The Bean Validation API was not included with the v7 Feature Pack for OSGi and JPA 2.0. Therefore, it was required to provide and configure the Bean Validation API and implementation in a shared library or package with the application.
For transitioning users: The Bean Validation API and implementation are included in the v8.x product. To deploy the feature pack
applications on v8.x, be aware of the following changes in configuration and runtime behaviors:
- In v7.0, the system property, com.ibm.websphere.validation.api.jar.path,
is used to direct the feature pack run time to locate the Bean Validation
API JAR file. In v8.x, the Bean Validation API JAR file is built into the product installation, therefore, this system property is ignored. However, the bean validation provider can still be overridden
in v7 and v8.x when packaged in application or shared libraries. The third bullet describes this usage scenario.
- The bean validation implementation in WebSphere Application Server is automatically the effective default bean validation provider.
- If standard bean validation features are used by the JPA application, the com.ibm.websphere.validation.api.jar.path system property, and user-supplied bean validation provider can be removed from application deployment.
- If non-specification compliant or provider-specific features are used by an application, the bean validation provider that supports the required features must be packaged, configured, and deployed as a typical, third-party service provider in the user application, the application shared library, and the server associated shared library. Read more about shared library usage in applications for more information.
trns
Related concepts:
Bean validation in RAR modules
Bean Validation
Related
Use installed optional packages
Configure class loaders of a server
Create shared libraries
Tasks: Storing and retrieving persistent data with the JPA API
Reference:
Bean validation troubleshooting tips
Bean validation built-in constraints
Related information:
Troubleshooting bean validation in RAR modules