org.datanucleus.store.mapped.mapping
Class SubclassPCMapping

java.lang.Object
  extended by org.datanucleus.store.mapped.mapping.JavaTypeMapping
      extended by org.datanucleus.store.mapped.mapping.MultiMapping
          extended by org.datanucleus.store.mapped.mapping.SubclassPCMapping

public class SubclassPCMapping
extends MultiMapping

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 org.datanucleus.store.mapped.mapping.MultiMapping
javaTypeMappings, numberOfDatastoreMappings
 
Fields inherited from class org.datanucleus.store.mapped.mapping.JavaTypeMapping
datastoreContainer, datastoreMappings, LOCALISER, mmd, referenceMapping, roleForMember, storeMgr, type
 
Constructor Summary
SubclassPCMapping()
           
 
Method Summary
 java.lang.Class getJavaType()
          Accessor for the java type being mapped.
 void initialize(AbstractMemberMetaData fmd, DatastoreContainerObject container, ClassLoaderResolver clr)
          Initialize this JavaTypeMapping with the given DatastoreAdapter for the given FieldMetaData.
protected  void prepareDatastoreMapping(ClassLoaderResolver clr)
          Convenience method to create a column for each implementation type of this reference.
 
Methods inherited from class org.datanucleus.store.mapped.mapping.MultiMapping
addJavaTypeMapping, getDatastoreMapping, getDatastoreMappings, getJavaTypeMapping, getMappingNumberForValue, getNumberOfDatastoreMappings, getObject, setObject, setObject
 
Methods inherited from class org.datanucleus.store.mapped.mapping.JavaTypeMapping
addDatastoreMapping, equals, failureMessage, getBoolean, getByte, getChar, getColumnMetaDataForMember, getDatastoreContainer, getDouble, getFloat, getInt, getJavaTypeForDatastoreMapping, getLong, getMemberMetaData, getObject, getReferenceMapping, getRoleForMember, getShort, getString, getType, getValueForDatastoreMapping, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, isNullable, isSerialised, setBoolean, setByte, setChar, setDatastoreContainer, setDouble, setFloat, setInt, setLong, setMemberMetaData, setReferenceMapping, setRoleForMember, setShort, setString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SubclassPCMapping

public SubclassPCMapping()
Method Detail

initialize

public void initialize(AbstractMemberMetaData fmd,
                       DatastoreContainerObject container,
                       ClassLoaderResolver clr)
Initialize this JavaTypeMapping with the given DatastoreAdapter for the given FieldMetaData.

Overrides:
initialize in class JavaTypeMapping
Parameters:
container - The datastore container storing this mapping (if any)
clr - the ClassLoaderResolver
fmd - FieldMetaData for the field to be mapped (if any)

prepareDatastoreMapping

protected void prepareDatastoreMapping(ClassLoaderResolver clr)
Convenience method to create a column for each implementation type of this reference.

Parameters:
clr - The ClassLoaderResolver

getJavaType

public java.lang.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 : 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


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