Class TriggerOldTransitionRows

java.lang.Object

org.apache.derby.vti.UpdatableVTITemplate

org.apache.derby.catalog.TriggerOldTransitionRows

All Implemented Interfaces:

AutoCloseable, PreparedStatement, Statement, Wrapper

public class TriggerOldTransitionRows
extends UpdatableVTITemplate

Provides information about a set of rows before a trigger action changed them.

This class implements only JDBC 1.2, not JDBC 2.0. You cannot compile this class with JDK1.2, since it implements only the JDBC 1.2 ResultSet interface and not the JDBC 2.0 ResultSet interface. You can only use this class in a JDK 1.2 runtime environment if no JDBC 2.0 calls are made against it.

Field Summary

Fields

Modifier and Type	Field	Description
private ResultSet	resultSet

Fields inherited from interface Statement

CLOSE_ALL_RESULTS, CLOSE_CURRENT_RESULT, EXECUTE_FAILED, KEEP_CURRENT_RESULT, NO_GENERATED_KEYS, RETURN_GENERATED_KEYS, SUCCESS_NO_INFO

Constructor Summary

Constructors

Constructor	Description
TriggerOldTransitionRows()	Construct a VTI on the trigger's old row set.

Method Summary

Modifier and Type	Method	Description
void	close()
ResultSet	executeQuery()
int	getResultSetConcurrency()
private ResultSet	initializeResultSet()

Methods inherited from class UpdatableVTITemplate

addBatch, addBatch, cancel, clearBatch, clearParameters, clearWarnings, closeOnCompletion, execute, execute, execute, execute, execute, executeBatch, executeQuery, executeUpdate, executeUpdate, executeUpdate, executeUpdate, executeUpdate, getConnection, getFetchDirection, getFetchSize, getGeneratedKeys, getMaxFieldSize, getMaxRows, getMetaData, getMoreResults, getMoreResults, getParameterMetaData, getQueryTimeout, getResultSet, getResultSetHoldability, getResultSetType, getUpdateCount, getWarnings, isClosed, isCloseOnCompletion, isPoolable, isWrapperFor, setArray, setAsciiStream, setAsciiStream, setAsciiStream, setBigDecimal, setBinaryStream, setBinaryStream, setBinaryStream, setBlob, setBlob, setBlob, setBoolean, setByte, setBytes, setCharacterStream, setCharacterStream, setCharacterStream, setClob, setClob, setClob, setCursorName, setDate, setDate, setDouble, setEscapeProcessing, setFetchDirection, setFetchSize, setFloat, setInt, setLong, setMaxFieldSize, setMaxRows, setNCharacterStream, setNCharacterStream, setNClob, setNClob, setNClob, setNString, setNull, setNull, setObject, setObject, setObject, setPoolable, setQueryTimeout, setRef, setRowId, setShort, setSQLXML, setString, setTime, setTime, setTimestamp, setTimestamp, setUnicodeStream, setURL, unwrap

Methods inherited from class Object

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

Methods inherited from interface PreparedStatement

executeLargeUpdate, setObject, setObject

Methods inherited from interface Statement

enquoteIdentifier, enquoteLiteral, enquoteNCharLiteral, executeLargeBatch, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, getLargeMaxRows, getLargeUpdateCount, isSimpleIdentifier, setLargeMaxRows

Field Details

resultSet

private ResultSet resultSet

Constructor Details

TriggerOldTransitionRows

public TriggerOldTransitionRows()
                         throws SQLException

Construct a VTI on the trigger's old row set. The old row set is the before image of the rows that are changed by the trigger. For a trigger on a delete, this is all the rows that are deleted. For a trigger on an update, this is the rows before they are updated. For an insert, this throws an exception.

Throws:

SQLException - thrown if no trigger active

Method Details

initializeResultSet

private ResultSet initializeResultSet()
                               throws SQLException

Throws:

SQLException

executeQuery

public ResultSet executeQuery()
                       throws SQLException

Specified by:

executeQuery in interface PreparedStatement

Overrides:

executeQuery in class UpdatableVTITemplate

Throws:

SQLException - on unexpected JDBC error

See Also:

• PreparedStatement

getResultSetConcurrency

public int getResultSetConcurrency()

Specified by:

getResultSetConcurrency in interface Statement

Overrides:

getResultSetConcurrency in class UpdatableVTITemplate

See Also:

• Statement

close

public void close()
           throws SQLException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Statement

Overrides:

close in class UpdatableVTITemplate

Throws:

SQLException - on unexpected JDBC error

See Also:

• Statement