it.unibz.inf.ontop.dbschema

Class BasicDBMetadata

java.lang.Object

it.unibz.inf.ontop.dbschema.BasicDBMetadata

All Implemented Interfaces:

DBMetadata

Direct Known Subclasses:

DummyBasicDBMetadata

public class BasicDBMetadata
extends Object
implements DBMetadata

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<RelationID,RelationDefinition>	relations

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BasicDBMetadata(String driverName, String driverVersion, String databaseProductName, String databaseVersion, Map<RelationID,DatabaseRelationDefinition> tables, Map<RelationID,RelationDefinition> relations, List<DatabaseRelationDefinition> listOfTables, QuotedIDFactory idfac)
protected	BasicDBMetadata(String driverName, String driverVersion, String databaseProductName, String databaseVersion, QuotedIDFactory idfac)

Method Summary

Modifier and Type	Method and Description
protected <T extends RelationDefinition> void	add(T td, Map<RelationID,T> schema) Inserts a new data definition to this metadata object.
BasicDBMetadata	clone() Deprecated.
com.google.common.collect.ImmutableMap<RelationID,RelationDefinition>	copyRelations() Temporary solution to enable DBMetadata merging
com.google.common.collect.ImmutableMap<RelationID,DatabaseRelationDefinition>	copyTables() Temporary solution to enable DBMetadata merging
DatabaseRelationDefinition	createDatabaseRelation(RelationID id) creates a database table (which can also be a database view) if the id contains schema than the relation is added to the lookup table (see getDatabaseRelation and getRelation) with both the fully qualified id and the table name only id
void	freeze() After calling this method, the DBMetadata cannot be modified
DatabaseRelationDefinition	getDatabaseRelation(RelationID id) Retrieves the data definition object based on its name.
Collection<DatabaseRelationDefinition>	getDatabaseRelations() Retrieves the tables list form the metadata.
String	getDbmsProductName()
String	getDbmsVersion()
DBParameters	getDBParameters() New-gen interface TODO: stop using the DBMetadata object in most of the code but DBParameters instead when needed
String	getDriverName()
String	getDriverVersion()
QuotedIDFactory	getQuotedIDFactory() Use DBParameters.getQuotedIDFactory() instead
RelationDefinition	getRelation(RelationID name) Retrieves the data definition object based on its name.
protected Map<RelationID,DatabaseRelationDefinition>	getTables()
com.google.common.collect.ImmutableMultimap<RelationPredicate,com.google.common.collect.ImmutableList<Integer>>	getUniqueConstraints() Generates a map for each predicate in the body of the rules in 'program' that contains the Primary Key data for the predicates obtained from the info in the metadata.
protected boolean	isStillMutable()
String	printKeys()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

relations

protected final Map<RelationID,RelationDefinition> relations

Constructor Detail

BasicDBMetadata

protected BasicDBMetadata(String driverName,
                          String driverVersion,
                          String databaseProductName,
                          String databaseVersion,
                          QuotedIDFactory idfac)

BasicDBMetadata

protected BasicDBMetadata(String driverName,
                          String driverVersion,
                          String databaseProductName,
                          String databaseVersion,
                          Map<RelationID,DatabaseRelationDefinition> tables,
                          Map<RelationID,RelationDefinition> relations,
                          List<DatabaseRelationDefinition> listOfTables,
                          QuotedIDFactory idfac)

Method Detail

createDatabaseRelation

public DatabaseRelationDefinition createDatabaseRelation(RelationID id)

creates a database table (which can also be a database view) if the id contains schema than the relation is added to the lookup table (see getDatabaseRelation and getRelation) with both the fully qualified id and the table name only id

Parameters:

id -

Returns:

add

protected <T extends RelationDefinition> void add(T td,
                                                  Map<RelationID,T> schema)

Inserts a new data definition to this metadata object.

Parameters:

td - The data definition. It can be a DatabaseRelationDefinition or a ParserViewDefinition object.

getDatabaseRelation

public DatabaseRelationDefinition getDatabaseRelation(RelationID id)

Description copied from interface: DBMetadata

Retrieves the data definition object based on its name. The id is a table name. If id has schema and the fully qualified id cannot be resolved the the table-only id is used

Specified by:

getDatabaseRelation in interface DBMetadata

getRelation

public RelationDefinition getRelation(RelationID name)

Description copied from interface: DBMetadata

Retrieves the data definition object based on its name. The name can be either a table name or a view name. If id has schema and the fully qualified id cannot be resolved the the table-only id is used

Specified by:

getRelation in interface DBMetadata

getDatabaseRelations

public Collection<DatabaseRelationDefinition> getDatabaseRelations()

Description copied from interface: DBMetadata

Retrieves the tables list form the metadata.

Specified by:

getDatabaseRelations in interface DBMetadata

freeze

public void freeze()

Description copied from interface: DBMetadata

After calling this method, the DBMetadata cannot be modified

Specified by:

freeze in interface DBMetadata

getDriverName

public String getDriverName()

Specified by:

getDriverName in interface DBMetadata

getDriverVersion

public String getDriverVersion()

Specified by:

getDriverVersion in interface DBMetadata

printKeys

public String printKeys()

Specified by:

printKeys in interface DBMetadata

getUniqueConstraints

public com.google.common.collect.ImmutableMultimap<RelationPredicate,com.google.common.collect.ImmutableList<Integer>> getUniqueConstraints()

Description copied from interface: DBMetadata

Generates a map for each predicate in the body of the rules in 'program' that contains the Primary Key data for the predicates obtained from the info in the metadata. It also returns the columns with unique constraints For instance, Given the table definition Tab0[col1:pk, col2:pk, col3, col4:unique, col5:unique], The methods will return the following Multimap: { Tab0 -> { [col1, col2], [col4], [col5] } }

Specified by:

getUniqueConstraints in interface DBMetadata

getDbmsProductName

public String getDbmsProductName()

Specified by:

getDbmsProductName in interface DBMetadata

getDbmsVersion

public String getDbmsVersion()

getQuotedIDFactory

public QuotedIDFactory getQuotedIDFactory()

Description copied from interface: DBMetadata

Use DBParameters.getQuotedIDFactory() instead

Specified by:

getQuotedIDFactory in interface DBMetadata

toString

public String toString()

Overrides:

toString in class Object

getTables

protected Map<RelationID,DatabaseRelationDefinition> getTables()

clone

@Deprecated
public BasicDBMetadata clone()

Deprecated.

Overrides:

clone in class Object

isStillMutable

protected boolean isStillMutable()

copyTables

public com.google.common.collect.ImmutableMap<RelationID,DatabaseRelationDefinition> copyTables()

Description copied from interface: DBMetadata

Temporary solution to enable DBMetadata merging

Specified by:

copyTables in interface DBMetadata

copyRelations

public com.google.common.collect.ImmutableMap<RelationID,RelationDefinition> copyRelations()

Description copied from interface: DBMetadata

Temporary solution to enable DBMetadata merging

Specified by:

copyRelations in interface DBMetadata

getDBParameters

public DBParameters getDBParameters()

Description copied from interface: DBMetadata

New-gen interface TODO: stop using the DBMetadata object in most of the code but DBParameters instead when needed

Specified by:

getDBParameters in interface DBMetadata