Package org.datanucleus.store.rdbms.mapping.java

Class SerialisedReferenceMapping

java.lang.Object

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

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

org.datanucleus.store.rdbms.mapping.java.SerialisedMapping

org.datanucleus.store.rdbms.mapping.java.SerialisedReferenceMapping

public class SerialisedReferenceMapping
extends SerialisedMapping

Mapping for a serialised reference (Interface/Object) field. Extends SerialisedMapping since that provides the basic serialisation mechanism, adding on the addition of StateManagers to the serialised object whenever it is required (since the object is a persistable).

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping

EXTENSION_CHECK_CONSTRAINT_VALUES

Fields inherited from class org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping

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

Constructor Summary

Constructors

Constructor	Description
SerialisedReferenceMapping()

Method Summary

Modifier and Type	Method	Description
Object	getObject(org.datanucleus.ExecutionContext ec, ResultSet resultSet, int[] exprIndex)	Method to extract the value of the persistable from a ResultSet.
Object	getObject(org.datanucleus.ExecutionContext ec, ResultSet resultSet, int[] exprIndex, org.datanucleus.state.DNStateManager ownerSM, int fieldNumber)	Method to extract the value of the persistable from a ResultSet.
void	setObject(org.datanucleus.ExecutionContext ec, PreparedStatement ps, int[] exprIndex, Object value)	Method to populate parameter positions in a PreparedStatement with this object
void	setObject(org.datanucleus.ExecutionContext ec, PreparedStatement ps, int[] exprIndex, Object value, org.datanucleus.state.DNStateManager ownerSM, int fieldNumber)	Method to populate parameter positions in a PreparedStatement with this object

Methods inherited from class org.datanucleus.store.rdbms.mapping.java.SerialisedMapping

getJavaType, getJavaTypeForColumnMapping

Methods inherited from class org.datanucleus.store.rdbms.mapping.java.SingleFieldMapping

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

Methods inherited from class org.datanucleus.store.rdbms.mapping.java.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 java.lang.Object

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

Constructor Detail

SerialisedReferenceMapping

public SerialisedReferenceMapping()

Method Detail

setObject

public void setObject(org.datanucleus.ExecutionContext ec,
                      PreparedStatement ps,
                      int[] exprIndex,
                      Object value)

Method to populate parameter positions in a PreparedStatement with this object

Overrides:

setObject in class SingleFieldMapping

Parameters:

ec - execution context

ps - The Prepared Statement

exprIndex - The parameter positions to populate

value - The value of the PC to use in populating the parameter positions

setObject

public void setObject(org.datanucleus.ExecutionContext ec,
                      PreparedStatement ps,
                      int[] exprIndex,
                      Object value,
                      org.datanucleus.state.DNStateManager ownerSM,
                      int fieldNumber)

Method to populate parameter positions in a PreparedStatement with this object

Overrides:

setObject in class JavaTypeMapping

Parameters:

ec - execution context

ps - The Prepared Statement

exprIndex - The parameter positions to populate

value - The value of the PC to use in populating the parameter positions

ownerSM - StateManager for the owning object

fieldNumber - field number of this object in the owning object

getObject

public Object getObject(org.datanucleus.ExecutionContext ec,
                        ResultSet resultSet,
                        int[] exprIndex)

Method to extract the value of the persistable from a ResultSet.

Overrides:

getObject in class SingleFieldMapping

Parameters:

ec - execution context

resultSet - The ResultSet

exprIndex - The parameter positions in the result set to use.

Returns:

The (deserialised) persistable object

getObject

public Object getObject(org.datanucleus.ExecutionContext ec,
                        ResultSet resultSet,
                        int[] exprIndex,
                        org.datanucleus.state.DNStateManager ownerSM,
                        int fieldNumber)

Method to extract the value of the persistable from a ResultSet.

Overrides:

getObject in class JavaTypeMapping

Parameters:

ec - execution context

exprIndex - The parameter positions in the result set to use.

ownerSM - StateManager for the owning object

resultSet - The ResultSet

fieldNumber - Absolute number of field in owner object

Returns:

The (deserialised) persistable object