org.hibernate.metamodel.relational

Class UniqueKey

java.lang.Object

org.hibernate.metamodel.relational.AbstractConstraint

org.hibernate.metamodel.relational.UniqueKey

All Implemented Interfaces:

Constraint, Exportable

public class UniqueKey
extends AbstractConstraint
implements Constraint

Models a SQL INDEX defined as UNIQUE

Author:

Gavin King, Steve Ebersole

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	UniqueKey(Table table, String name)

Method Summary

Methods

Modifier and Type	Method and Description
String	getExportIdentifier() Get a unique identifier to make sure we are not exporting the same database structure multiple times.
protected String	sqlConstraintStringInAlterTable(Dialect dialect)
String[]	sqlCreateStrings(Dialect dialect) Gets the SQL strings for creating the database object.
String[]	sqlDropStrings(Dialect dialect) Gets the SQL strings for dropping the database object.

Methods inherited from class org.hibernate.metamodel.relational.AbstractConstraint

addColumn, getColumns, getColumnSpan, getName, getTable, internalAddColumn, internalColumnAccess, isCreationVetoed

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.metamodel.relational.Constraint

getColumns, getName, getTable

Constructor Detail

UniqueKey

protected UniqueKey(Table table,
         String name)

Method Detail

getExportIdentifier

public String getExportIdentifier()

Description copied from interface: Exportable

Get a unique identifier to make sure we are not exporting the same database structure multiple times.

Specified by:

getExportIdentifier in interface Exportable

Returns:

The exporting identifier.

sqlCreateStrings

public String[] sqlCreateStrings(Dialect dialect)

Description copied from interface: Exportable

Gets the SQL strings for creating the database object.

Specified by:

sqlCreateStrings in interface Exportable

Overrides:

sqlCreateStrings in class AbstractConstraint

Parameters:

dialect - The dialect for which to generate the SQL creation strings

Returns:

the SQL strings for creating the database object.

sqlDropStrings

public String[] sqlDropStrings(Dialect dialect)

Description copied from interface: Exportable

Gets the SQL strings for dropping the database object.

Specified by:

sqlDropStrings in interface Exportable

Overrides:

sqlDropStrings in class AbstractConstraint

Parameters:

dialect - The dialect for which to generate the SQL drop strings

Returns:

the SQL strings for dropping the database object.

sqlConstraintStringInAlterTable

protected String sqlConstraintStringInAlterTable(Dialect dialect)

Specified by:

sqlConstraintStringInAlterTable in class AbstractConstraint