Class EmbeddedPCMapping

java.lang.Object

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

org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping

org.datanucleus.store.rdbms.mapping.java.EmbeddedMapping

org.datanucleus.store.rdbms.mapping.java.EmbeddedPCMapping

All Implemented Interfaces:

MappingCallbacks

public class EmbeddedPCMapping
extends EmbeddedMapping
implements MappingCallbacks

Mapping for a PC object embedded within another PC object (1-1 relation). Provides mapping for a single Java type (the PC type) to multiple datastore columns. Allows for nested embedded fields. Implements MappingCallbacks since if we are embedding a MappingCallbacks field (e.g a BLOB on Oracle) then we need in turn to call the underlying MappingCallbacks methods.

Field Summary

Fields inherited from class EmbeddedMapping

clr, discrimMapping, discrimMetaData, embCmd, emd, javaTypeMappings, objectType, typeName

Fields inherited from class SingleFieldMapping

EXTENSION_CHECK_CONSTRAINT_VALUES

Fields inherited from class JavaTypeMapping

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

Constructor Summary

Constructors

Constructor	Description
EmbeddedPCMapping()

Method Summary

Modifier and Type	Method	Description
private org.datanucleus.state.DNStateManager	getStateManagerForEmbeddedObject(org.datanucleus.state.DNStateManager ownerSM)	Accessor for StateManager of the embedded PC object when provided with the owner object.
void	initialize(org.datanucleus.metadata.AbstractMemberMetaData mmd, Table table, org.datanucleus.ClassLoaderResolver clr)	Initialise this JavaTypeMapping with the given DatastoreAdapter for the given metadata.
void	postFetch(org.datanucleus.state.DNStateManager sm)	Method called after the retrieval of the object, so that additional operations can be performed if necessary.
void	postInsert(org.datanucleus.state.DNStateManager sm)	Method called after the insert of the object so that additional operations can be performed if necessary.
void	postUpdate(org.datanucleus.state.DNStateManager sm)	Method called after the update of the object, so that additional operations can be performed if necessary.
void	preDelete(org.datanucleus.state.DNStateManager sm)	Method called before the delete of objects, so that additional operations can be performed if necessary.

Methods inherited from class EmbeddedMapping

addJavaTypeMapping, getDiscriminatorMapping, getJavaType, getJavaTypeMapping, getJavaTypeMapping, getNumberOfJavaTypeMappings, getObject, getObject, getRealMemberMetaData, initialize, prepareColumnMapping, setObject, setObject

Methods inherited from class SingleFieldMapping

getBoolean, getByte, getChar, getDefaultLength, getDouble, getFloat, getInt, getJavaTypeForColumnMapping, getLong, getShort, getString, getValidValues, setBoolean, setByte, setChar, setDouble, setFloat, setInt, setLong, setShort, setString

Methods inherited from class JavaTypeMapping

addColumnMapping, equals, failureMessage, getAbsoluteFieldNumber, getColumnMapping, getColumnMappings, getColumnMetaDataForMember, getMemberMetaData, getNumberOfColumnMappings, getReferenceMapping, getRoleForMember, getStoreManager, getTable, getType, getValueForColumnMapping, hashCode, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, isNullable, isSerialised, performSetPostProcessing, representableAsStringLiteralInStatement, requiresSetPostProcessing, setAbsFieldNumber, setMemberMetaData, setReferenceMapping, setRoleForMember, setTable

Methods inherited from class Object

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

Constructor Details

EmbeddedPCMapping

public EmbeddedPCMapping()

Method Details

initialize

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

Initialise this JavaTypeMapping with the given DatastoreAdapter for the given metadata.

Overrides:

initialize in class EmbeddedMapping

Parameters:

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

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

clr - the ClassLoaderResolver

postFetch

public void postFetch(org.datanucleus.state.DNStateManager sm)

Description copied from interface: MappingCallbacks

Method called after the retrieval of the object, so that additional operations can be performed if necessary.

Specified by:

postFetch in interface MappingCallbacks

Parameters:

sm - StateManager of the owner

postInsert

public void postInsert(org.datanucleus.state.DNStateManager sm)

Description copied from interface: MappingCallbacks

Method called after the insert of the object so that additional operations can be performed if necessary.

Specified by:

postInsert in interface MappingCallbacks

Parameters:

sm - StateManager of the owner

postUpdate

public void postUpdate(org.datanucleus.state.DNStateManager sm)

Description copied from interface: MappingCallbacks

Method called after the update of the object, so that additional operations can be performed if necessary.

Specified by:

postUpdate in interface MappingCallbacks

Parameters:

sm - StateManager of the owner

preDelete

public void preDelete(org.datanucleus.state.DNStateManager sm)

Description copied from interface: MappingCallbacks

Method called before the delete of objects, so that additional operations can be performed if necessary.

Specified by:

preDelete in interface MappingCallbacks

Parameters:

sm - StateManager of the owner

getStateManagerForEmbeddedObject

private org.datanucleus.state.DNStateManager getStateManagerForEmbeddedObject(org.datanucleus.state.DNStateManager ownerSM)

Accessor for StateManager of the embedded PC object when provided with the owner object.

Parameters:

ownerSM - StateManager of the owner

Returns:

StateManager of the embedded object