Package org.datanucleus.api.jpa.metadata

Class JPATypeConverterUtils

java.lang.Object

org.datanucleus.api.jpa.metadata.JPATypeConverterUtils

public class JPATypeConverterUtils
extends Object

Convenience methods for handling JPA AttributeConverters.

Constructor Summary

Constructors

Constructor	Description
JPATypeConverterUtils()

Method Summary

Modifier and Type	Method	Description
static javax.persistence.AttributeConverter	createAttributeConverterInstance(org.datanucleus.NucleusContext nucCtx, Class<? extends javax.persistence.AttributeConverter> attrConverterCls)
static Class	getAttributeTypeForAttributeConverter(Class<? extends javax.persistence.AttributeConverter> converterCls, Class attrTypeFallback)	Convenience method that takes the class of an AttributeConverter class, and returns the attribute type that it is for.
static Class	getDatabaseTypeForAttributeConverter(Class<? extends javax.persistence.AttributeConverter> converterCls, Class attrType, Class dbTypeFallback)	Convenience method that takes the class of an AttributeConverter class, and returns the datastore type that it is for.

Methods inherited from class java.lang.Object

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

Constructor Detail

JPATypeConverterUtils

public JPATypeConverterUtils()

Method Detail

getAttributeTypeForAttributeConverter

public static Class getAttributeTypeForAttributeConverter(Class<? extends javax.persistence.AttributeConverter> converterCls,
                                                          Class attrTypeFallback)

Convenience method that takes the class of an AttributeConverter class, and returns the attribute type that it is for.

Parameters:

converterCls - The converter class

attrTypeFallback - The fallback to return if the attribute type is not found

Returns:

The attribute type for this converter

getDatabaseTypeForAttributeConverter

public static Class getDatabaseTypeForAttributeConverter(Class<? extends javax.persistence.AttributeConverter> converterCls,
                                                         Class attrType,
                                                         Class dbTypeFallback)

Convenience method that takes the class of an AttributeConverter class, and returns the datastore type that it is for.

Parameters:

converterCls - The converter class

attrType - Type for the attribute

dbTypeFallback - The fallback to return if the datastore type is not found

Returns:

The datastore type for this converter

createAttributeConverterInstance

public static javax.persistence.AttributeConverter createAttributeConverterInstance(org.datanucleus.NucleusContext nucCtx,
                                                                                    Class<? extends javax.persistence.AttributeConverter> attrConverterCls)