Package org.firebirdsql.jdbc.metadata

Class DbMetadataMediator

java.lang.Object

org.firebirdsql.jdbc.metadata.DbMetadataMediator

@InternalApi
public abstract class DbMetadataMediator
extends java.lang.Object

Provides access to the database connection for executing database metadata queries.

Since:

4.0

Author:

Mark Rotteveel

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DbMetadataMediator.MetadataQuery	Holder class for query text and parameters.

Constructor Summary

Constructors

Constructor	Description
DbMetadataMediator()

Method Summary

Modifier and Type	Method	Description
protected abstract FirebirdSupportInfo	getFirebirdSupportInfo()	Provides the FirebirdSupportInfo for the connection of the associated database metadata.
protected abstract GDSType	getGDSType()
protected abstract FBDatabaseMetaData	getMetaData()	A FBDatabaseMetaData instance of the connection that created this mediator.
protected abstract int	getOdsMajorVersion()
protected abstract int	getOdsMinorVersion()
protected boolean	isOdsEqualOrAbove(int major, int minor)
protected abstract java.sql.ResultSet	performMetaDataQuery(DbMetadataMediator.MetadataQuery metadataQuery)	Executes the provided metadata query on the connection of the associated database metadata.

Methods inherited from class java.lang.Object

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

Constructor Detail

DbMetadataMediator

public DbMetadataMediator()

Method Detail

getFirebirdSupportInfo

protected abstract FirebirdSupportInfo getFirebirdSupportInfo()

Provides the FirebirdSupportInfo for the connection of the associated database metadata.

Returns:

Firebird support info object.

performMetaDataQuery

protected abstract java.sql.ResultSet performMetaDataQuery(DbMetadataMediator.MetadataQuery metadataQuery)
                                                    throws java.sql.SQLException

Executes the provided metadata query on the connection of the associated database metadata.

Parameters:

metadataQuery - Result set producing query to execute

Returns:

Result set of the query

Throws:

java.sql.SQLException - For failures to execute the query

getMetaData

protected abstract FBDatabaseMetaData getMetaData()

A FBDatabaseMetaData instance of the connection that created this mediator.

Returns:

metadata instance

getGDSType

protected abstract GDSType getGDSType()

Returns:

GDSType of the current connection

getOdsMajorVersion

protected abstract int getOdsMajorVersion()

Returns:

ODS major version

getOdsMinorVersion

protected abstract int getOdsMinorVersion()

Returns:

ODS minor version

isOdsEqualOrAbove

protected final boolean isOdsEqualOrAbove(int major,
                                          int minor)