org.apache.derbyTesting.functionTests.tests.lang

Class RSMDWrapper

java.lang.Object

org.apache.derby.vti.VTITemplate

org.apache.derby.vti.StringColumnVTI

org.apache.derbyTesting.functionTests.tests.lang.RSMDWrapper

All Implemented Interfaces:

java.lang.AutoCloseable, java.sql.ResultSet, java.sql.Wrapper, org.apache.derby.vti.AwareVTI

public class RSMDWrapper
extends org.apache.derby.vti.StringColumnVTI

Table function wrapping the result set meta data for a query.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.derby.vti.VTITemplate

org.apache.derby.vti.VTITemplate.ColumnDescriptor

Field Summary

Fields

Modifier and Type	Field and Description
private int	_currentRow
private java.lang.Integer	_currentRowNumber
private java.lang.reflect.Method[]	_methods
private int	_rowCount
private java.sql.ResultSetMetaData	_rsmd
private static java.lang.String[]	COLUMN_NAMES
private static int[]	COLUMN_TYPES

Fields inherited from interface java.sql.ResultSet

CLOSE_CURSORS_AT_COMMIT, CONCUR_READ_ONLY, CONCUR_UPDATABLE, FETCH_FORWARD, FETCH_REVERSE, FETCH_UNKNOWN, HOLD_CURSORS_OVER_COMMIT, TYPE_FORWARD_ONLY, TYPE_SCROLL_INSENSITIVE, TYPE_SCROLL_SENSITIVE

Constructor Summary

Constructors

Constructor and Description
RSMDWrapper(java.sql.Connection conn, java.lang.String query)

Method Summary

Modifier and Type	Method and Description
void	close()
java.sql.ResultSetMetaData	getMetaData()
protected java.lang.String	getRawColumn(int columnNumber)
static java.sql.ResultSet	getResultSetMetaData(java.lang.String query) This is the method which is registered as a table function.
private void	loadMethods()
boolean	next()

Methods inherited from class org.apache.derby.vti.StringColumnVTI

findColumn, getAsciiStream, getBigDecimal, getBinaryStream, getBlob, getBoolean, getByte, getBytes, getClob, getColumnCount, getColumnName, getDate, getDouble, getFloat, getInt, getLong, getShort, getString, getTime, getTimestamp, setColumnNames, wasNull

Methods inherited from class org.apache.derby.vti.VTITemplate

absolute, afterLast, beforeFirst, cancelRowUpdates, clearWarnings, deleteRow, first, getArray, getArray, getAsciiStream, getBigDecimal, getBigDecimal, getBigDecimal, getBinaryStream, getBlob, getBoolean, getByte, getBytes, getCharacterStream, getCharacterStream, getClob, getConcurrency, getContext, getCursorName, getDate, getDate, getDate, getDouble, getFetchDirection, getFetchSize, getFloat, getHoldability, getInt, getLong, getNCharacterStream, getNCharacterStream, getNClob, getNClob, getNString, getNString, getObject, getObject, getObject, getObject, getObject, getObject, getRef, getRef, getReturnTableSignature, getRow, getRowId, getRowId, getShort, getSQLXML, getSQLXML, getStatement, getString, getTime, getTime, getTime, getTimestamp, getTimestamp, getTimestamp, getType, getUnicodeStream, getUnicodeStream, getURL, getURL, getWarnings, insertRow, isAfterLast, isBeforeFirst, isClosed, isFirst, isLast, isWrapperFor, last, moveToCurrentRow, moveToInsertRow, notImplemented, previous, refreshRow, relative, rowDeleted, rowInserted, rowUpdated, setContext, setFetchDirection, setFetchSize, unwrap, updateArray, updateArray, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateBigDecimal, updateBigDecimal, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBlob, updateBlob, updateBlob, updateBlob, updateBlob, updateBlob, updateBoolean, updateBoolean, updateByte, updateByte, updateBytes, updateBytes, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateClob, updateClob, updateClob, updateClob, updateClob, updateClob, updateDate, updateDate, updateDouble, updateDouble, updateFloat, updateFloat, updateInt, updateInt, updateLong, updateLong, updateNCharacterStream, updateNCharacterStream, updateNCharacterStream, updateNCharacterStream, updateNClob, updateNClob, updateNClob, updateNClob, updateNClob, updateNClob, updateNString, updateNString, updateNull, updateNull, updateObject, updateObject, updateObject, updateObject, updateRef, updateRef, updateRow, updateRowId, updateRowId, updateShort, updateShort, updateSQLXML, updateSQLXML, updateString, updateString, updateTime, updateTime, updateTimestamp, updateTimestamp

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.sql.ResultSet

updateObject, updateObject, updateObject, updateObject

Field Detail

COLUMN_NAMES

private static final java.lang.String[] COLUMN_NAMES

COLUMN_TYPES

private static final int[] COLUMN_TYPES

_methods

private java.lang.reflect.Method[] _methods

_rsmd

private java.sql.ResultSetMetaData _rsmd

_rowCount

private int _rowCount

_currentRow

private int _currentRow

_currentRowNumber

private java.lang.Integer _currentRowNumber

Constructor Detail

RSMDWrapper

public RSMDWrapper(java.sql.Connection conn,
                   java.lang.String query)
            throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getResultSetMetaData

public static java.sql.ResultSet getResultSetMetaData(java.lang.String query)
                                               throws java.lang.Exception

This is the method which is registered as a table function.

Throws:

java.lang.Exception

loadMethods

private void loadMethods()
                  throws java.lang.Exception

Throws:

java.lang.Exception

next

public boolean next()
             throws java.sql.SQLException

Throws:

java.sql.SQLException

close

public void close()

getMetaData

public java.sql.ResultSetMetaData getMetaData()

Specified by:

getMetaData in interface java.sql.ResultSet

Overrides:

getMetaData in class org.apache.derby.vti.VTITemplate

getRawColumn

protected java.lang.String getRawColumn(int columnNumber)
                                 throws java.sql.SQLException

Specified by:

getRawColumn in class org.apache.derby.vti.StringColumnVTI

Throws:

java.sql.SQLException