org.apache.derby.catalog
Class TriggerOldTransitionRows

java.lang.Object
  org.apache.derby.vti.UpdatableVTITemplate
      org.apache.derby.catalog.TriggerOldTransitionRows

All Implemented Interfaces:

java.sql.PreparedStatement, java.sql.Statement, java.sql.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

private java.sql.ResultSet

resultSet

Fields inherited from interface java.sql.Statement

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

Constructor Summary

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

Method Summary

void	close()
java.sql.ResultSet	executeQuery()
int	getResultSetConcurrency()
private java.sql.ResultSet	initializeResultSet()

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

addBatch, addBatch, cancel, clearBatch, clearParameters, clearWarnings, 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, setArray, setAsciiStream, setBigDecimal, setBinaryStream, setBlob, setBoolean, setByte, setBytes, setCharacterStream, setClob, setCursorName, setDate, setDate, setDouble, setEscapeProcessing, setFetchDirection, setFetchSize, setFloat, setInt, setLong, setMaxFieldSize, setMaxRows, setNull, setNull, setObject, setObject, setObject, setQueryTimeout, setRef, setShort, setString, setTime, setTime, setTimestamp, setTimestamp, setUnicodeStream, setURL

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.sql.PreparedStatement

setAsciiStream, setAsciiStream, setBinaryStream, setBinaryStream, setBlob, setBlob, setCharacterStream, setCharacterStream, setClob, setClob, setNCharacterStream, setNCharacterStream, setNClob, setNClob, setNClob, setNString, setRowId, setSQLXML

Methods inherited from interface java.sql.Statement

isClosed, isPoolable, setPoolable

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Field Detail

resultSet

private java.sql.ResultSet resultSet

Constructor Detail

TriggerOldTransitionRows

public TriggerOldTransitionRows()
                         throws java.sql.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:

java.sql.SQLException - thrown if no trigger active

Method Detail

initializeResultSet

private java.sql.ResultSet initializeResultSet()
                                        throws java.sql.SQLException

Throws:

java.sql.SQLException

executeQuery

public java.sql.ResultSet executeQuery()
                                throws java.sql.SQLException

Specified by:

executeQuery in interface java.sql.PreparedStatement

Overrides:

executeQuery in class UpdatableVTITemplate

Throws:

java.sql.SQLException - on unexpected JDBC error

See Also:

PreparedStatement

getResultSetConcurrency

public int getResultSetConcurrency()

Specified by:

getResultSetConcurrency in interface java.sql.Statement

Overrides:

getResultSetConcurrency in class UpdatableVTITemplate

See Also:

Statement

close

public void close()
           throws java.sql.SQLException

Specified by:

close in interface java.sql.Statement

Overrides:

close in class UpdatableVTITemplate

Throws:

java.sql.SQLException - on unexpected JDBC error

See Also:

Statement