org.kepler.objectmanager.data.db

Class ForeignKey

java.lang.Object

org.kepler.objectmanager.data.db.ForeignKey

All Implemented Interfaces:

Constraint

public class ForeignKey
extends java.lang.Object
implements Constraint

This class represents a foreignkey in table level

Author:

Jing Tao

Field Summary

Fields inherited from interface org.kepler.objectmanager.data.db.Constraint

COMMA, CONSTRAINT, FOREIGNKEY, FOREIGNKEYSTRING, JOINCONDITIONCONSTRAINT, LEFTPARENTH, NOTNULLCONSTRAINT, NOTNULLSTRING, PRIMARYKEY, PRIMARYKEYSTRING, REFERENCESTRING, RIGHTPARENTH, SPACESTRING, UNIQUEKEY, UNIQUEKEYSTRING

Constructor Summary

Constructors

Constructor and Description
ForeignKey() Default constructor

Method Summary

Modifier and Type	Method and Description
java.lang.String	getEntityReference() Method to get referenced entity
java.lang.String[]	getKeys() Method to get keys
java.lang.String	getName() Method to get constraint name
int	getType() Method to get type
java.lang.String	printString() Method to print out a part sql command about foreign key In foreign key, you don't need to specify the referenced entity's column name, the primary key column(s) of the referenced table is used as the referenced column(s)
void	setEntityReference(java.lang.String referencedEntity) Method to set referenced entity name
void	setKeys(java.lang.String[] constraintKeys) Method to set keys
void	setName(java.lang.String constraintName) Method to set constraint name

Methods inherited from class java.lang.Object

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

Constructor Detail

ForeignKey

public ForeignKey()

Default constructor

Method Detail

getType

public int getType()

Method to get type

Specified by:

getType in interface Constraint

Returns:

int

getName

public java.lang.String getName()

Method to get constraint name

Returns:

String

getKeys

public java.lang.String[] getKeys()

Method to get keys

Returns:

String[]

getEntityReference

public java.lang.String getEntityReference()

Method to get referenced entity

Returns:

String

setName

public void setName(java.lang.String constraintName)

Method to set constraint name

Parameters:

constraintName - String

setKeys

public void setKeys(java.lang.String[] constraintKeys)

Method to set keys

Parameters:

constraintKeys - String[]

setEntityReference

public void setEntityReference(java.lang.String referencedEntity)

Method to set referenced entity name

Parameters:

referencedEntity - String

printString

public java.lang.String printString()
                             throws UnWellFormedConstraintException

Method to print out a part sql command about foreign key In foreign key, you don't need to specify the referenced entity's column name, the primary key column(s) of the referenced table is used as the referenced column(s)

Specified by:

printString in interface Constraint

Returns:

String

Throws:

UnWellFormedConstraintException