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

Class ArrayMapping

java.lang.Object

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

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

org.datanucleus.store.rdbms.mapping.java.AbstractContainerMapping

org.datanucleus.store.rdbms.mapping.java.ArrayMapping

All Implemented Interfaces:

MappingCallbacks

Direct Known Subclasses:

OracleArrayMapping

public class ArrayMapping
extends AbstractContainerMapping
implements MappingCallbacks

Mapping for an array.

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
ArrayMapping()

Method Summary

Modifier and Type	Method	Description
protected boolean	containerIsStoredInSingleColumn()	Convenience method to return if the array is stored in the owning table as a column.
Class	getJavaType()	Accessor for the Java type represented here.
void	postFetch(org.datanucleus.state.DNStateManager sm)	Method to be called after any fetch of the owner class element.
void	postInsert(org.datanucleus.state.DNStateManager ownerSM)	Method called after the insert of the object so that additional operations can be performed if necessary.
void	postUpdate(org.datanucleus.state.DNStateManager ownerSM)	Method to be called after any update of the owner class element.
void	preDelete(org.datanucleus.state.DNStateManager ownerSM)	Method called before the delete of objects, so that additional operations can be performed if necessary.

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

getColumnMapping, getColumnMappings, getJavaTypeForColumnMapping, getNumberOfColumnMappings, getObject, getTable, hasSimpleDatastoreRepresentation, includeInFetchStatement, includeInInsertStatement, includeInUpdateStatement, initialize, prepareColumnMapping, replaceFieldWithWrapper, setObject

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

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

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

addColumnMapping, equals, failureMessage, getAbsoluteFieldNumber, getColumnMetaDataForMember, getMemberMetaData, getObject, getReferenceMapping, getRoleForMember, getStoreManager, getType, getValueForColumnMapping, hashCode, initialize, isNullable, isSerialised, performSetPostProcessing, representableAsStringLiteralInStatement, requiresSetPostProcessing, setAbsFieldNumber, setMemberMetaData, setObject, setReferenceMapping, setRoleForMember, setTable

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayMapping

public ArrayMapping()

Method Detail

getJavaType

public Class getJavaType()

Accessor for the Java type represented here.

Specified by:

getJavaType in class JavaTypeMapping

Returns:

The java type

containerIsStoredInSingleColumn

protected boolean containerIsStoredInSingleColumn()

Convenience method to return if the array is stored in the owning table as a column. Overrides the superclass since arrays can be stored in a single column also when the no join is specified and the array is of a primitive/wrapper type.

Overrides:

containerIsStoredInSingleColumn in class AbstractContainerMapping

Returns:

Whether it is stored in a single column in the main table.

postInsert

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

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:

ownerSM - StateManager of the owner

postFetch

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

Description copied from class: AbstractContainerMapping

Method to be called after any fetch of the owner class element.

Specified by:

postFetch in interface MappingCallbacks

Overrides:

postFetch in class AbstractContainerMapping

Parameters:

sm - StateManager of the owner

postUpdate

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

Method to be called after any update of the owner class element. This method could be called in two situations

• Update an array field of an object by replacing the array with a new array, so UpdateRequest is called, which calls here
• Persist a new object, and it needed to wait til the element was inserted so goes into dirty state and then flush() triggers UpdateRequest, which comes here

Specified by:

postUpdate in interface MappingCallbacks

Parameters:

ownerSM - StateManager of the owner

preDelete

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

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:

ownerSM - StateManager of the owner