Package com.exasol.adapter.jdbc

Class BaseRemoteMetadataReader

java.lang.Object

com.exasol.adapter.jdbc.AbstractMetadataReader

com.exasol.adapter.jdbc.AbstractRemoteMetadataReader

com.exasol.adapter.jdbc.BaseRemoteMetadataReader

All Implemented Interfaces:

MetadataReader, RemoteMetadataReader

public final class BaseRemoteMetadataReader
extends AbstractRemoteMetadataReader

This class implements basic reading of database metadata from JDBC.

See java.sql.DatabaseMetaData

Field Summary

Fields inherited from class com.exasol.adapter.jdbc.AbstractRemoteMetadataReader

columnMetadataReader, identifierConverter, tableMetadataReader

Fields inherited from class com.exasol.adapter.jdbc.AbstractMetadataReader

connection, exaMetadata, properties

Constructor Summary

Constructors

Constructor	Description
BaseRemoteMetadataReader(Connection connection, com.exasol.adapter.AdapterProperties properties, com.exasol.ExaMetadata exaMetadata)	Create a new instance of a BaseTableMetadataReader.

Method Summary

Modifier and Type	Method	Description
protected ColumnMetadataReader	createColumnMetadataReader()	Create a reader that handles column metadata.
protected IdentifierConverter	createIdentifierConverter()	Create a converter that translates identifiers from the remote data source to the Exasol representation.
protected TableMetadataReader	createTableMetadataReader()	Create a reader that handles table metadata.

Methods inherited from class com.exasol.adapter.jdbc.AbstractRemoteMetadataReader

getColumnMetadataReader, getIdentifierConverter, getSchemaAdapterNotes, getSupportedTableTypes, getTableMetadataReader, getTableTypeFilter, logTablesScan, readRemoteSchemaMetadata, readRemoteSchemaMetadata

Methods inherited from class com.exasol.adapter.jdbc.AbstractMetadataReader

getCatalogNameFilter, getSchemaNameFilter

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.adapter.jdbc.MetadataReader

getCatalogNameFilter, getSchemaNameFilter

Constructor Detail

BaseRemoteMetadataReader

public BaseRemoteMetadataReader(Connection connection,
                                com.exasol.adapter.AdapterProperties properties,
                                com.exasol.ExaMetadata exaMetadata)

Create a new instance of a BaseTableMetadataReader.

Parameters:

connection - database connection through which the reader retrieves the metadata from the remote source

properties - user-defined properties

exaMetadata - metadata of the Exasol database

Method Detail

createColumnMetadataReader

protected ColumnMetadataReader createColumnMetadataReader()

Create a reader that handles column metadata.

Override this method in subclasses if a remote data source needs specific handling of column metadata.

Specified by:

createColumnMetadataReader in class AbstractRemoteMetadataReader

Returns:

column metadata reader

createTableMetadataReader

protected TableMetadataReader createTableMetadataReader()

Create a reader that handles table metadata.

Override this method in subclasses if a remote data source needs specific handling of table metadata.

Specified by:

createTableMetadataReader in class AbstractRemoteMetadataReader

Returns:

table metadata reader

createIdentifierConverter

protected IdentifierConverter createIdentifierConverter()

Create a converter that translates identifiers from the remote data source to the Exasol representation.

Specified by:

createIdentifierConverter in class AbstractRemoteMetadataReader

Returns:

identifier converter