org.opennms.netmgt.dao.api

Interface SessionUtils

All Known Implementing Classes:

DefaultSessionUtils, MockSessionUtils

public interface SessionUtils

Utility functions for dealing with Hibernate session and transactions. These functions were added to this interface to help make them accessible to bundles running in the OSGi container without having to deal with class-path issues related to Spring & Hibernate.

Author:

jwhite

Method Summary

Modifier and Type	Method and Description
default void	withManualFlush(Runnable runnable)
<V> V	withManualFlush(java.util.function.Supplier<V> supplier) Converts the flush mode for the current session factory to MANUAL for the duration of the call to the given supplier.
default void	withReadOnlyTransaction(Runnable runnable)
<V> V	withReadOnlyTransaction(java.util.function.Supplier<V> supplier) Invokes the given supplier within the context of a read-only transaction.
default void	withTransaction(Runnable runnable)
<V> V	withTransaction(java.util.function.Supplier<V> supplier) Invoked the given supplier within the context of a transaction.

Method Detail

withTransaction

<V> V withTransaction(java.util.function.Supplier<V> supplier)

Invoked the given supplier within the context of a transaction.

Type Parameters:

V - type returned by the supplier

Parameters:

supplier - supplier to invoke

Returns:

value returned by the supplier

withTransaction

default void withTransaction(Runnable runnable)

withReadOnlyTransaction

<V> V withReadOnlyTransaction(java.util.function.Supplier<V> supplier)

Invokes the given supplier within the context of a read-only transaction.

Type Parameters:

V - type returned by the supplier

Parameters:

supplier - supplier to invoke

Returns:

value returned by the supplier

withReadOnlyTransaction

default void withReadOnlyTransaction(Runnable runnable)

withManualFlush

<V> V withManualFlush(java.util.function.Supplier<V> supplier)

Converts the flush mode for the current session factory to MANUAL for the duration of the call to the given supplier. The flush mode is reverted to it's previous value after the call.

Type Parameters:

V - type returned by the supplier

Parameters:

supplier - supplier to invoke

Returns:

value returned by the supplier

withManualFlush

default void withManualFlush(Runnable runnable)