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Java Persistence API (JPA) Extensions Reference for EclipseLink, Release 2.4
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sessions-xml

Use eclipselink.sessions-xml to use a specified native sessions.xml configuration file (which references a project.xml file) to load configuration and mapping information instead of JPA annotations or EclipseLink XML (as shown in Figure 5-1).


Values

Table 5-88 describes this persistence property's values.

Table 5-88 Valid Values for sessions-xml

Value Description

configuration file

The resource name of the sessions XML file. If you do not specify the value for this property, it will not be used.



Usage

You can use the eclipselink.sessions-xml property as an alternative to using annotations and deployment XML. With this property, EclipseLink builds an in-memory EclipseLink session and project based on this metadata (as shown in Figure 5-1). You can acquire a persistence manager and use it, having defined all entities and so on using only EclipseLink sessions.xml.

Figure 5-1 Using the eclipselink.sessions-xml Persistence Property

Description of Figure 5-1 follows
Description of "Figure 5-1 Using the eclipselink.sessions-xml Persistence Property"


Examples

Example 5-91 shows how to use this property in a persistence.xml file.

Example 5-91 Using sessions-xml in the persistence.xml file

<property name="eclipselink.sessions-xml" value="mysession.xml"/>

Example 5-91 shows how to use this property in a property map.

Example 5-92 Using sessions-xml in Property Map

import org.eclipse.persistence.config.PersistenceUnitProperties;
propertiesMap.put(PersistenceUnitProperties.SESSIONS_XML, "mysession.xml");


See Also

For more information, see:

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