it.unibz.inf.ontop.spec.dbschema.impl

Class BasicPreProcessedImplicitRelationalDBConstraintSet

java.lang.Object

it.unibz.inf.ontop.spec.dbschema.impl.BasicPreProcessedImplicitRelationalDBConstraintSet

All Implemented Interfaces:

PreProcessedImplicitDBConstraintSet, PreProcessedImplicitRelationalDBConstraintSet

public class BasicPreProcessedImplicitRelationalDBConstraintSet
extends Object
implements PreProcessedImplicitRelationalDBConstraintSet

Used for reading user-provided information about unique constraints and foreign keys Needed for better performance in cases where views and materialized views are present. Associated JUnit Tests @TestImplicitDBConstraints, @TestQuestImplicitDBConstraints

Author:

Dag Hovland (first version) Moved from ImplicitDBContraintsReader

Method Summary

Modifier and Type	Method and Description
Set<it.unibz.inf.ontop.dbschema.RelationID>	getReferredTables(it.unibz.inf.ontop.dbschema.QuotedIDFactory idfac) Extracts relation IDs for all relations referred to by the user supplied foreign keys (but not the relations of the foreign keys)
void	insertForeignKeyConstraints(it.unibz.inf.ontop.dbschema.DBMetadata md) Inserts the user-supplied foreign keys into the metadata object TODO: refactor into an immutable style
void	insertUniqueConstraints(it.unibz.inf.ontop.dbschema.DBMetadata md) Inserts the user-supplied primary keys / unique constraints columns into the metadata object TODO: refactor into an immutable style

Methods inherited from class java.lang.Object

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

Method Detail

getReferredTables

public Set<it.unibz.inf.ontop.dbschema.RelationID> getReferredTables(it.unibz.inf.ontop.dbschema.QuotedIDFactory idfac)

Extracts relation IDs for all relations referred to by the user supplied foreign keys (but not the relations of the foreign keys)

Specified by:

getReferredTables in interface PreProcessedImplicitRelationalDBConstraintSet

Parameters:

idfac - QuotedIDFactory

Returns:

relation ids that are referred to by foreign keys

insertUniqueConstraints

public void insertUniqueConstraints(it.unibz.inf.ontop.dbschema.DBMetadata md)

Inserts the user-supplied primary keys / unique constraints columns into the metadata object TODO: refactor into an immutable style

Specified by:

insertUniqueConstraints in interface PreProcessedImplicitRelationalDBConstraintSet

insertForeignKeyConstraints

public void insertForeignKeyConstraints(it.unibz.inf.ontop.dbschema.DBMetadata md)

Inserts the user-supplied foreign keys into the metadata object TODO: refactor into an immutable style

Specified by:

insertForeignKeyConstraints in interface PreProcessedImplicitRelationalDBConstraintSet