org.apache.logging.log4j.core.appender.db.jpa

Class JPADatabaseManager

java.lang.Object

org.apache.logging.log4j.core.appender.AbstractManager

org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

org.apache.logging.log4j.core.appender.db.jpa.JPADatabaseManager

public final class JPADatabaseManager
extends AbstractDatabaseManager

An AbstractDatabaseManager implementation for relational databases accessed via JPA.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

AbstractDatabaseManager.AbstractFactoryData

Field Summary

Fields inherited from class org.apache.logging.log4j.core.appender.AbstractManager

count, LOGGER

Method Summary

Methods

Modifier and Type	Method and Description
protected void	connectInternal() Implementations should implement this method to perform any proprietary connection operations.
protected void	disconnectInternal() Implementations should implement this method to perform any proprietary disconnection / shutdown operations.
static JPADatabaseManager	getJPADatabaseManager(String name, int bufferSize, Class<? extends AbstractLogEventWrapperEntity> entityClass, Constructor<? extends AbstractLogEventWrapperEntity> entityConstructor, String persistenceUnitName) Creates a JPA manager for use within the JPAAppender, or returns a suitable one if it already exists.
protected void	writeInternal(LogEvent event) Performs the actual writing of the event in an implementation-specific way.

Methods inherited from class org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

connect, disconnect, flush, getManager, isConnected, releaseSub, toString, write

Methods inherited from class org.apache.logging.log4j.core.appender.AbstractManager

getContentFormat, getCount, getName, hasManager, release

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

connectInternal

protected void connectInternal()

Description copied from class: AbstractDatabaseManager

Implementations should implement this method to perform any proprietary connection operations. This method will never be called twice on the same instance. It is safe to throw any exceptions from this method.

Specified by:

connectInternal in class AbstractDatabaseManager

disconnectInternal

protected void disconnectInternal()

Description copied from class: AbstractDatabaseManager

Implementations should implement this method to perform any proprietary disconnection / shutdown operations. This method will never be called twice on the same instance, and it will only be called after AbstractDatabaseManager.connectInternal(). It is safe to throw any exceptions from this method.

Specified by:

disconnectInternal in class AbstractDatabaseManager

writeInternal

protected void writeInternal(LogEvent event)

Description copied from class: AbstractDatabaseManager

Performs the actual writing of the event in an implementation-specific way. This method is called immediately from AbstractDatabaseManager.write(LogEvent) if buffering is off, or from AbstractDatabaseManager.flush() if the buffer has reached its limit.

Specified by:

writeInternal in class AbstractDatabaseManager

Parameters:

event - The event to write to the database.

getJPADatabaseManager

public static JPADatabaseManager getJPADatabaseManager(String name,
                                       int bufferSize,
                                       Class<? extends AbstractLogEventWrapperEntity> entityClass,
                                       Constructor<? extends AbstractLogEventWrapperEntity> entityConstructor,
                                       String persistenceUnitName)

Creates a JPA manager for use within the JPAAppender, or returns a suitable one if it already exists.

Parameters:

name - The name of the manager, which should include connection details, entity class name, etc.

bufferSize - The size of the log event buffer.

entityClass - The fully-qualified class name of the AbstractLogEventWrapperEntity concrete implementation.

entityConstructor - The one-arg LogEvent constructor for the concrete entity class.

persistenceUnitName - The name of the JPA persistence unit that should be used for persisting log events.

Returns:

a new or existing JPA manager as applicable.