Module org.eclipse.persistence.jpa

Package org.eclipse.persistence.jpa.metadata

Class MetadataSourceAdapter

java.lang.Object

org.eclipse.persistence.jpa.metadata.MetadataSourceAdapter

All Implemented Interfaces:

MetadataSource

Direct Known Subclasses:

XMLMetadataSource

public abstract class MetadataSourceAdapter
extends Object
implements MetadataSource

Purpose: To provide a trivial implementation of MetadataSource. You may subclass this class rather than implement the MetadataSource interface allowing insulation from future additions to the interface.

Since:

EclipseLink 2.3

See Also:

• MetadataSource

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MetadataSourceAdapter()	Default constructor.

Method Summary

Modifier and Type	Method	Description
XMLEntityMappings	getEntityMappings(Map<String,Object> properties, ClassLoader classLoader, SessionLog log)	PUBLIC: This method is responsible for returning the object representation of the object-relational mapping overrides.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.jpa.metadata.MetadataSource

getPropertyOverrides

Constructor Details

MetadataSourceAdapter

protected MetadataSourceAdapter()

Default constructor.

Method Details

getEntityMappings

public XMLEntityMappings getEntityMappings(Map<String,Object> properties,
 ClassLoader classLoader,
 SessionLog log)

Description copied from interface: MetadataSource

PUBLIC: This method is responsible for returning the object representation of the object-relational mapping overrides. It is called on initial deployment of the persistence unit and when the persistence unit is reloaded to allow customization of the persistence unit above and beyond what is packaged in the persistence.xml and what is code into the application. IMPORTANT: This method is called during the predeploy stage that is used both for weaving and runtime EMF deployment. Runtime properties might not be available during weaving, and mapping options that require weaving changes should not be used. For example adding a lazy OneToOne mapping after weaving has already occurred will result in an exception if they are expected to have been woven into the class.

Specified by:

getEntityMappings in interface MetadataSource