Class JpaAppender

  extended by org.apache.logging.log4j.core.AbstractLifeCycle
      extended by org.apache.logging.log4j.core.filter.AbstractFilterable
          extended by org.apache.logging.log4j.core.appender.AbstractAppender
              extended by org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender<JpaDatabaseManager>
                  extended by org.apache.logging.log4j.core.appender.db.jpa.JpaAppender
All Implemented Interfaces:
Appender, Filterable, LifeCycle

public final class JpaAppender
extends AbstractDatabaseAppender<JpaDatabaseManager>

This Appender writes logging events to a relational database using the Java Persistence API. It requires a pre-configured JPA persistence unit and a concrete implementation of the abstract AbstractLogEventWrapperEntity class decorated with JPA annotations.

See Also:

Nested Class Summary
Nested classes/interfaces inherited from interface org.apache.logging.log4j.core.LifeCycle
Field Summary
Fields inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
Method Summary
static JpaAppender createAppender(String name, String ignore, Filter filter, String bufferSize, String entityClassName, String persistenceUnitName)
          Factory method for creating a JPA appender within the plugin manager.
 String toString()
Methods inherited from class org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender
append, getLayout, getManager, replaceManager, start, stop
Methods inherited from class org.apache.logging.log4j.core.appender.AbstractAppender
error, error, error, getHandler, getName, ignoreExceptions, parseInt, setHandler
Methods inherited from class org.apache.logging.log4j.core.filter.AbstractFilterable
addFilter, getFilter, hasFilter, isFiltered, removeFilter
Methods inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
getState, isInitialized, isStarted, isStarting, isStopped, isStopping, setStarted, setStarting, setState, setStopped, setStopping
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.logging.log4j.core.LifeCycle
isStarted, isStopped

Method Detail


public String toString()
toString in class AbstractAppender


public static JpaAppender createAppender(@PluginAttribute(value="name")
                                                       String name,
                                                       String ignore,
                                                       Filter filter,
                                                       String bufferSize,
                                                       String entityClassName,
                                                       String persistenceUnitName)
Factory method for creating a JPA appender within the plugin manager.

name - The name of the appender.
ignore - If "true" (default) exceptions encountered when appending events are logged; otherwise they are propagated to the caller.
filter - The filter, if any, to use.
bufferSize - If an integer greater than 0, this causes the appender to buffer log events and flush whenever the buffer reaches this size.
entityClassName - The fully qualified name of the concrete AbstractLogEventWrapperEntity implementation that has JPA annotations mapping it to a database table.
persistenceUnitName - The name of the JPA persistence unit that should be used for persisting log events.
a new JPA appender.

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