org.eclipse.persistence.internal.helper

Class JPAConversionManager

java.lang.Object

org.eclipse.persistence.internal.core.helper.CoreConversionManager

org.eclipse.persistence.internal.helper.ConversionManager

org.eclipse.persistence.internal.helper.JPAConversionManager

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class JPAConversionManager
extends ConversionManager

Purpose: Extension to the existing conversion manager to support the EJB 3.0 spec.

Responsibilities:

• Allow a null value default to be read into primitives. With the current conversion manager, setting a null into a primitive causes and exception. This conversion manager was added to avoid that exception and therefore, add support for schemas that were built before the object model was mapped (using a primitive). Therefore, EclipseLink will not change the null column value in the database through this conversion. The value on the database will only be changed if the user actually sets a new primitive value.
• Allows users to define their own set of default null values to be used in the conversion.

Since:

TopLink 10.1.4 RI

Author:

Guy Pelletier

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JPAConversionManager()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getDefaultNullValue(java.lang.Class theClass) INTERNAL:

Methods inherited from class org.eclipse.persistence.internal.helper.ConversionManager

clone, convertClassNameToClass, convertObject, getDataTypesConvertedFrom, getDataTypesConvertedTo, getDefaultLoader, getDefaultManager, getDefaultNullValues, getLoader, getObjectClass, getPrimitiveClass, hasDefaultNullValues, loadClass, setDefaultLoader, setDefaultManager, setDefaultNullValue, setDefaultNullValues, setLoader, setShouldUseClassLoaderFromCurrentThread, shouldUseClassLoaderFromCurrentThread

Methods inherited from class java.lang.Object

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

Constructor Detail

JPAConversionManager

public JPAConversionManager()

Method Detail

getDefaultNullValue

public java.lang.Object getDefaultNullValue(java.lang.Class theClass)

INTERNAL:

Overrides:

getDefaultNullValue in class ConversionManager