4 Sessions

Sessions are a key component of the Oracle Application Server TopLink application—they provide OracleAS TopLink with access to the database. Sessions enable you to execute queries, and they return persistent objects and other results for client applications. This chapter introduces OracleAS TopLink sessions, and describes:

• Introduction to Session Concepts

• Session Architectures

• Configuring Sessions with the sessions.xml File

• Registering Descriptors

• Caching Objects

• Session Manager

• Session Querying

• Session Types

• Sessions and the Cache

• Session Utilities

• Customizing Session Events

• OracleAS TopLink Support for Java Data Objects (JDO)