org.datanucleus.state

Interface RelationshipManager

All Known Implementing Classes:

RelationshipManagerImpl

public interface RelationshipManager

Method Summary

Modifier and Type	Method and Description
void	checkConsistency() Method to check for consistency the managed relations of this object with the related objects.
void	clearFields() Convenience method to clear all fields from being managed.
boolean	managesField(int fieldNumber) Accessor for whether a field is being managed.
void	process() Method to process the (bidirectional) relations for this object.
void	relationAdd(int fieldNumber, Object val) Method to register a change in the contents of a container field, with an object being added.
void	relationChange(int fieldNumber, Object oldValue, Object newValue) Method that is called when the user calls setXXX() on a field.
void	relationRemove(int fieldNumber, Object val) Method to register a change in the contents of a container field, with an object being removed.

Method Detail

clearFields

void clearFields()

Convenience method to clear all fields from being managed.

relationChange

void relationChange(int fieldNumber,
                    Object oldValue,
                    Object newValue)

Method that is called when the user calls setXXX() on a field.

Parameters:

fieldNumber - Number of the field

oldValue - The old value

newValue - The new value

relationAdd

void relationAdd(int fieldNumber,
                 Object val)

Method to register a change in the contents of a container field, with an object being added.

Parameters:

fieldNumber - Number of the field

val - Value being added

relationRemove

void relationRemove(int fieldNumber,
                    Object val)

Method to register a change in the contents of a container field, with an object being removed.

Parameters:

fieldNumber - Number of the field

val - Value being removed

managesField

boolean managesField(int fieldNumber)

Accessor for whether a field is being managed.

Parameters:

fieldNumber - Number of the field

Returns:

Whether it is currently managed

checkConsistency

void checkConsistency()

Method to check for consistency the managed relations of this object with the related objects.

process

void process()

Method to process the (bidirectional) relations for this object.