Module org.tentackle.model

Package org.tentackle.model.impl

Class ForeignKeyImpl

java.lang.Object

org.tentackle.model.impl.ForeignKeyImpl

All Implemented Interfaces:

Comparable<ForeignKey>, ForeignKey

public class ForeignKeyImpl
extends Object
implements ForeignKey, Comparable<ForeignKey>

Implementation of a foreign key.

Author:

harald

Constructor Summary

Constructors

Constructor	Description
ForeignKeyImpl(Entity referencingEntity, Attribute referencingAttribute, Entity referencedEntity, Attribute referencedAttribute, boolean composite)	Creates a foreign key.

Method Summary

Modifier and Type	Method	Description
int	compareTo(ForeignKey o)
boolean	equals(Object obj)
Attribute	getReferencedAttribute()	Gets the referenced attribute.
Entity	getReferencedEntity()	Gets the referenced entity.
Entity	getReferencedTableProvidingEntity()	Gets the entity that provides the table for the referenced entity.
Attribute	getReferencingAttribute()	Gets the referencing attribute.
Entity	getReferencingEntity()	Gets the referencing entity.
Entity	getReferencingTableProvidingEntity()	Gets the entity that provides the table for the referencing entity.
int	hashCode()
boolean	isComposite()	Returns whether the reference is via a composite relation.
void	setComposite(boolean composite)
String	sqlCreateForeignKey(Backend backend)	Creates the foreign key creation sql code.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

ForeignKeyImpl

public ForeignKeyImpl(Entity referencingEntity,
 Attribute referencingAttribute,
 Entity referencedEntity,
 Attribute referencedAttribute,
 boolean composite)

Creates a foreign key.

Parameters:

referencingEntity - the referencing entity

referencingAttribute - the referenced entity

referencedEntity - the referenced entity

referencedAttribute - the referenced attribute

composite - true if cascade on delete and update

Method Details

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

compareTo

public int compareTo(ForeignKey o)

Specified by:

compareTo in interface Comparable<ForeignKey>

getReferencingEntity

public Entity getReferencingEntity()

Description copied from interface: ForeignKey

Gets the referencing entity.

Specified by:

getReferencingEntity in interface ForeignKey

Returns:

the referencing entity

getReferencingAttribute

public Attribute getReferencingAttribute()

Description copied from interface: ForeignKey

Gets the referencing attribute.

Specified by:

getReferencingAttribute in interface ForeignKey

Returns:

the referencing attribute

getReferencedEntity

public Entity getReferencedEntity()

Description copied from interface: ForeignKey

Gets the referenced entity.

Specified by:

getReferencedEntity in interface ForeignKey

Returns:

the referenced entity

getReferencedAttribute

public Attribute getReferencedAttribute()

Description copied from interface: ForeignKey

Gets the referenced attribute.

Specified by:

getReferencedAttribute in interface ForeignKey

Returns:

the referenced attribute

isComposite

public boolean isComposite()

Description copied from interface: ForeignKey

Returns whether the reference is via a composite relation.

Specified by:

isComposite in interface ForeignKey

Returns:

true if composite

setComposite

public void setComposite(boolean composite)

sqlCreateForeignKey

public String sqlCreateForeignKey(Backend backend)

Description copied from interface: ForeignKey

Creates the foreign key creation sql code.

Specified by:

sqlCreateForeignKey in interface ForeignKey

Parameters:

backend - the backend to create sql code for

Returns:

the SQL code

getReferencingTableProvidingEntity

public Entity getReferencingTableProvidingEntity()

Description copied from interface: ForeignKey

Gets the entity that provides the table for the referencing entity.

Specified by:

getReferencingTableProvidingEntity in interface ForeignKey

Returns:

the entity, never null

getReferencedTableProvidingEntity

public Entity getReferencedTableProvidingEntity()

Description copied from interface: ForeignKey

Gets the entity that provides the table for the referenced entity.

Specified by:

getReferencedTableProvidingEntity in interface ForeignKey

Returns:

the entity, never null

toString

public String toString()

Overrides:

toString in class Object