openjpa logging configuration with slf4j.

summary

1. Declare a property which configure openjpa to use slf4j in persistence.xml
2. Declare loggers in logback.xml with names of Logging Channels

example

persistence.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="persistenceUnit" transaction-type="RESOURCE_LOCAL">
 <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>

        <properties>
            <property name="openjpa.Log" value="slf4j"/><!-- Details are specified in logback.ml -->
        </properties>
    </persistence-unit>
</persistence>

logback.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE logback>
<configuration debug="false">
<logger name="openjpa.Runtime" level="OFF">
   <appender-ref ref="someAppender" />
</logger>
</configuration>

reference

• Chapter 3. Logging and Auditing
• Definition of Logging Channel