org.apache.derby.iapi.jdbc
Interface EngineResultSet

All Superinterfaces:

java.sql.ResultSet, java.sql.Wrapper

All Known Implementing Classes:

EmbedResultSet, EmbedResultSet20, EmbedResultSet40

public interface EngineResultSet
extends java.sql.ResultSet

Additional methods the embedded engine exposes on its ResultSet object implementations. An internal api only, mainly for the network server

Field Summary

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

Method Summary

int	getHoldability() Fetch the holdability of this ResultSet which may be different from the holdability of its Statement.
int	getLength(int columnIndex) Return the length of the designated columnIndex data value.
boolean	isForUpdate() Is this result set from a select for update statement?
boolean	isNull(int columnIndex) Is the designated columnIndex a null data value?

Methods inherited from interface java.sql.ResultSet

absolute, afterLast, beforeFirst, cancelRowUpdates, clearWarnings, close, deleteRow, findColumn, first, getArray, getArray, getAsciiStream, getAsciiStream, getBigDecimal, getBigDecimal, getBigDecimal, getBigDecimal, getBinaryStream, getBinaryStream, getBlob, getBlob, getBoolean, getBoolean, getByte, getByte, getBytes, getBytes, getCharacterStream, getCharacterStream, getClob, getClob, getConcurrency, getCursorName, getDate, getDate, getDate, getDate, getDouble, getDouble, getFetchDirection, getFetchSize, getFloat, getFloat, getInt, getInt, getLong, getLong, getMetaData, getNCharacterStream, getNCharacterStream, getNClob, getNClob, getNString, getNString, getObject, getObject, getObject, getObject, getRef, getRef, getRow, getRowId, getRowId, getShort, getShort, getSQLXML, getSQLXML, getStatement, getString, getString, getTime, getTime, getTime, getTime, getTimestamp, getTimestamp, getTimestamp, getTimestamp, getType, getUnicodeStream, getUnicodeStream, getURL, getURL, getWarnings, insertRow, isAfterLast, isBeforeFirst, isClosed, isFirst, isLast, last, moveToCurrentRow, moveToInsertRow, next, previous, refreshRow, relative, rowDeleted, rowInserted, rowUpdated, setFetchDirection, setFetchSize, 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, wasNull

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Method Detail

isForUpdate

boolean isForUpdate()

Is this result set from a select for update statement?

isNull

boolean isNull(int columnIndex)
               throws java.sql.SQLException

Is the designated columnIndex a null data value? This is used by EXTDTAInputStream to get the null value without retrieving the underlying data value.

Parameters:

columnIndex -

Returns:

true if the data value at columnIndex for the current row is null

Throws:

java.sql.SQLException

getLength

int getLength(int columnIndex)
              throws java.sql.SQLException

Return the length of the designated columnIndex data value. Implementation is type dependent.

Parameters:

columnIndex - column to access

Returns:

length of data value

Throws:

java.sql.SQLException

See Also:

DataValueDescriptor.getLength()

getHoldability

int getHoldability()
                   throws java.sql.SQLException

Fetch the holdability of this ResultSet which may be different from the holdability of its Statement.

Specified by:

getHoldability in interface java.sql.ResultSet

Returns:

HOLD_CURSORS_OVER_COMMIT or CLOSE_CURSORS_AT_COMMIT

Throws:

java.sql.SQLException - Error.