Hibernate Connection Release Modes

Hibernate Connection Release Modes:

The different release modes that are supported by Hibernate are as follows:

1. on_close: The Hibernate session obtains a connection when it first needs to perform some JDBC access and maintains that connection until the session is closed.

2. after_transaction: uses ConnectionReleaseMode.AFTER_TRANSACTION. This setting should not be used in JTA environments. Also note that with ConnectionReleaseMode.AFTER_TRANSACTION, if a session is considered to be in auto-commit mode, connections will be released as if the release mode were AFTER_STATEMENT.

3. after_statement: uses ConnectionReleaseMode.AFTER_STATEMENT. Additionally, the configured ConnectionProvider is consulted to see if it supports this setting (supportsAggressiveRelease()). If not, the release mode is reset to ConnectionReleaseMode.AFTER_TRANSACTION. This setting is only safe in environments where we can either re-acquire the same underlying JDBC connection each time you make a call into ConnectionProvider.getConnection() or in auto-commit environments where it does not matter if we re-establish the same connection