org.hibernate.boot.model.relational.Namespace#Name ( )源码实例Demo

public DatabaseInformationImpl(
		ServiceRegistry serviceRegistry,
		JdbcEnvironment jdbcEnvironment,
		DdlTransactionIsolator ddlTransactionIsolator,
		Namespace.Name defaultNamespace) throws SQLException {
	this.jdbcEnvironment = jdbcEnvironment;

	this.extractionContext = new ImprovedExtractionContextImpl(
			serviceRegistry,
			jdbcEnvironment,
			ddlTransactionIsolator,
			defaultNamespace.getCatalog(),
			defaultNamespace.getSchema(),
			this
	);

	// todo : make this pluggable
	this.extractor = new InformationExtractorJdbcDatabaseMetaDataImpl( extractionContext );

	// because we do not have defined a way to locate sequence info by name
	initializeSequences();
}
 

public static DatabaseInformation buildDatabaseInformation(
		ServiceRegistry serviceRegistry,
		DdlTransactionIsolator ddlTransactionIsolator,
		Namespace.Name defaultNamespace) {
	final JdbcEnvironment jdbcEnvironment = serviceRegistry.getService( JdbcEnvironment.class );
	try {
		return new DatabaseInformationImpl(
				serviceRegistry,
				jdbcEnvironment,
				ddlTransactionIsolator,
				defaultNamespace
		);
	}
	catch (SQLException e) {
		throw jdbcEnvironment.getSqlExceptionHelper().convert( e, "Unable to build DatabaseInformation" );
	}
}
 

@Override
public boolean schemaExists(Namespace.Name namespace) {
	return extractor.schemaExists( namespace.getCatalog(), namespace.getSchema() );
}
 

@Override
public TableInformation getTableInformation(
		Namespace.Name namespace,
		Identifier tableName) {
	return getTableInformation( new QualifiedTableName( namespace, tableName ) );
}
 

@Override
public SequenceInformation getSequenceInformation(Namespace.Name schemaName, Identifier sequenceName) {
	return getSequenceInformation( new QualifiedSequenceName( schemaName, sequenceName ) );
}
 

/**
 * Check to see if the given schema already exists.
 *
 * @param schema The schema name
 *
 * @return {@code true} indicates a schema with the given name already exists
 */
boolean schemaExists(Namespace.Name schema);
 

/**
 * Obtain reference to the named TableInformation
 *
 * @param schemaName The name of the schema the table belongs to
 * @param tableName The table name
 *
 * @return The table information.  May return {@code null} if not found.
 */
TableInformation getTableInformation(Namespace.Name schemaName, Identifier tableName);
 

/**
 * Obtain reference to the named SequenceInformation
 *
 * @param schemaName The name of the schema the table belongs to
 * @param sequenceName The sequence name
 *
 * @return The sequence information.  May return {@code null} if not found.
 */
SequenceInformation getSequenceInformation(Namespace.Name schemaName, Identifier sequenceName);