Class SubclassPCMapping

java.lang.Object

org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping

org.datanucleus.store.rdbms.mapping.java.MultiMapping

org.datanucleus.store.rdbms.mapping.java.MultiPersistableMapping

org.datanucleus.store.rdbms.mapping.java.SubclassPCMapping

public class SubclassPCMapping
extends MultiPersistableMapping

Mapping for a field that stores a PC object that uses "subclass-table" inheritance and where this is mapped in the datastore as a separate FK for each subclass.

Field Summary

Fields inherited from class MultiMapping

javaTypeMappings, numberOfColumnMappings

Fields inherited from class JavaTypeMapping

absFieldNumber, columnMappings, mmd, referenceMapping, roleForMember, storeMgr, table, type

Constructor Summary

Constructors

Constructor	Description
SubclassPCMapping()

Method Summary

Modifier and Type	Method	Description
Class	getJavaType()	Accessor for the java type being mapped.
void	initialize(org.datanucleus.metadata.AbstractMemberMetaData fmd, Table table, org.datanucleus.ClassLoaderResolver clr)	Initialize this JavaTypeMapping with the given DatastoreAdapter for the given member MetaData.
protected void	prepareColumnMapping(org.datanucleus.ClassLoaderResolver clr)	Convenience method to create a column for each implementation type of this reference.

Methods inherited from class MultiPersistableMapping

getMappingNumberForValue, getObject, setObject, setObject

Methods inherited from class MultiMapping

addJavaTypeMapping, getColumnMapping, getColumnMappings, getJavaTypeMapping, getNumberOfColumnMappings

Methods inherited from class JavaTypeMapping

addColumnMapping, equals, failureMessage, getAbsoluteFieldNumber, getBoolean, getByte, getChar, getColumnMetaDataForMember, getDouble, getFloat, getInt, getJavaTypeForColumnMapping, getLong, getMemberMetaData, getObject, getReferenceMapping, getRoleForMember, getShort, getStoreManager, getString, getTable, getType, getValueForColumnMapping, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, isNullable, isSerialised, performSetPostProcessing, representableAsStringLiteralInStatement, requiresSetPostProcessing, setAbsFieldNumber, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setMemberMetaData, setReferenceMapping, setRoleForMember, setShort, setString, setTable

Methods inherited from class Object

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

Constructor Details

SubclassPCMapping

public SubclassPCMapping()

Method Details

initialize

public void initialize(org.datanucleus.metadata.AbstractMemberMetaData fmd,
 Table table,
 org.datanucleus.ClassLoaderResolver clr)

Initialize this JavaTypeMapping with the given DatastoreAdapter for the given member MetaData.

Overrides:

initialize in class JavaTypeMapping

Parameters:

fmd - FieldMetaData for the field to be mapped (if any)

table - The datastore container storing this mapping (if any)

clr - the ClassLoaderResolver

prepareColumnMapping

protected void prepareColumnMapping(org.datanucleus.ClassLoaderResolver clr)

Convenience method to create a column for each implementation type of this reference.

Parameters:

clr - The ClassLoaderResolver

getJavaType

public Class getJavaType()

Description copied from class: JavaTypeMapping

Accessor for the java type being mapped. This is the java type that the mapping represents. Some examples :

• if the field is of type "MyClass" then the mapping will be OIDMapping (or subclass) the javaType will be OID, and the type will be MyClass.
• if the field is of type "int" then the mapping will be IntegerMapping, the javaType will be Integer, and the type will be int.

The "java type" is the java-type name used in the plugin.xml mapping file

Specified by:

getJavaType in class JavaTypeMapping

Returns:

The java type