Package com.databricks.jdbc.dbclient.impl.common

Class ImportedKeysDatabricksResultSetAdapter

java.lang.Object

com.databricks.jdbc.dbclient.impl.common.ImportedKeysDatabricksResultSetAdapter

Direct Known Subclasses:

CrossReferenceKeysDatabricksResultSetAdapter

public class ImportedKeysDatabricksResultSetAdapter
extends Object

Implementation of IDatabricksResultSetAdapter for processing the result set of the DatabaseMetaData.getImportedKeys(java.lang.String, java.lang.String, java.lang.String).

Field Summary

Fields

Modifier and Type	Field	Description
static ResultColumn	FOREIGN_KEY_NAME_COLUMN
static ResultColumn	PARENT_CATALOG_NAME
static ResultColumn	PARENT_NAMESPACE_NAME
static ResultColumn	PARENT_TABLE_NAME

Constructor Summary

Constructors

Constructor	Description
ImportedKeysDatabricksResultSetAdapter()

Method Summary

Modifier and Type	Method	Description
boolean	includeRow(ResultSet resultSet, List<ResultColumn> columns)
ResultColumn	mapColumn(ResultColumn column)
default Object	transformValue(ResultColumn column, Object value)	Optional method to transform a value after it's retrieved from the result set.

Methods inherited from class java.lang.Object

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

Field Detail

PARENT_CATALOG_NAME

public static final ResultColumn PARENT_CATALOG_NAME

PARENT_NAMESPACE_NAME

public static final ResultColumn PARENT_NAMESPACE_NAME

PARENT_TABLE_NAME

public static final ResultColumn PARENT_TABLE_NAME

FOREIGN_KEY_NAME_COLUMN

public static final ResultColumn FOREIGN_KEY_NAME_COLUMN

Constructor Detail

ImportedKeysDatabricksResultSetAdapter

public ImportedKeysDatabricksResultSetAdapter()

Method Detail

mapColumn

public ResultColumn mapColumn(ResultColumn column)

The SQL command SHOW FOREIGN KEYS returns column names that differ from those defined in the JDBC specification, so we need to map them accordingly.

includeRow

public boolean includeRow(ResultSet resultSet,
                          List<ResultColumn> columns)
                   throws SQLException

Throws:

SQLException

transformValue

public default Object transformValue(ResultColumn column,
                                     Object value)

Optional method to transform a value after it's retrieved from the result set.

Parameters:

column - The column definition

value - The value retrieved from the result set

Returns:

The potentially transformed value