org.apache.jdo.model.jdo

Interface JDORelationship

All Superinterfaces:

JDOElement

All Known Subinterfaces:

JDOArray, JDOCollection, JDOMap, JDOReference

All Known Implementing Classes:

JDOArrayImplCaching, JDOArrayImplDynamic, JDOCollectionImplCaching, JDOCollectionImplDynamic, JDOMapImplCaching, JDOMapImplDynamic, JDOReferenceImpl, JDORelationshipImpl

public interface JDORelationship
extends JDOElement

JDORelationship is the super interface for all interfaces representing JDO relationship metadata of a managed field of a persistence-capable class.

Author:

Michael Bouschen

Field Summary

Fields

Modifier and Type	Field and Description
static int	CARDINALITY_N Constant representing the cardinality n used for lower and upper bounds.
static int	CARDINALITY_ONE Constant representing the cardinality one used for lower and upper bounds.
static int	CARDINALITY_ZERO Constant representing the cardinality zero used for lower and upper bounds.

Method Summary

Methods

Modifier and Type	Method and Description
JDOField	getDeclaringField() Get the declaring field of this JDORelationship.
JDORelationship	getInverseRelationship() Get the inverse JDORelationship in the case of a managed relationship.
int	getLowerBound() Get the lower cardinality bound for this relationship element.
int	getUpperBound() Get the upper cardinality bound for this relationship element.
void	setDeclaringField(JDOField declaringField) Set the declaring field of this JDORelationship.
void	setInverseRelationship(JDORelationship inverseRelationship) Set the inverse JDORelationship in the case of a managed relationship.
void	setLowerBound(int lowerBound) Set the lower cardinality bound for this relationship element.
void	setUpperBound(int upperBound) Set the upper cardinality bound for this relationship element.

Methods inherited from interface org.apache.jdo.model.jdo.JDOElement

addPropertyChangeListener, addVetoableChangeListener, createJDOExtension, getJDOExtensions, removeJDOExtension, removePropertyChangeListener, removeVetoableChangeListener

Field Detail

CARDINALITY_ZERO

static final int CARDINALITY_ZERO

Constant representing the cardinality zero used for lower and upper bounds.

See Also:

Constant Field Values

CARDINALITY_ONE

static final int CARDINALITY_ONE

Constant representing the cardinality one used for lower and upper bounds.

See Also:

Constant Field Values

CARDINALITY_N

static final int CARDINALITY_N

Constant representing the cardinality n used for lower and upper bounds.

See Also:

Constant Field Values

Method Detail

getLowerBound

int getLowerBound()

Get the lower cardinality bound for this relationship element.

Returns:

the lower cardinality bound

setLowerBound

void setLowerBound(int lowerBound)
                   throws ModelException

Set the lower cardinality bound for this relationship element.

Parameters:

lowerBound - an integer indicating the lower cardinality bound

Throws:

ModelException - if impossible

getUpperBound

int getUpperBound()

Get the upper cardinality bound for this relationship element.

Returns:

the upper cardinality bound

setUpperBound

void setUpperBound(int upperBound)
                   throws ModelException

Set the upper cardinality bound for this relationship element.

Parameters:

upperBound - an integer indicating the upper cardinality bound

Throws:

ModelException - if impossible

getDeclaringField

JDOField getDeclaringField()

Get the declaring field of this JDORelationship.

Returns:

the field that owns this JDORelationship, or null if the element is not attached to any field

setDeclaringField

void setDeclaringField(JDOField declaringField)
                       throws ModelException

Set the declaring field of this JDORelationship.

Parameters:

declaringField - the declaring field of this relationship element

Throws:

ModelException - if impossible

getInverseRelationship

JDORelationship getInverseRelationship()

Get the inverse JDORelationship in the case of a managed relationship.

Returns:

the inverse relationship

setInverseRelationship

void setInverseRelationship(JDORelationship inverseRelationship)
                            throws ModelException

Set the inverse JDORelationship in the case of a managed relationship.

Parameters:

inverseRelationship - the inverse relationship

Throws:

ModelException - if impossible