org.mmbase.module.database
Class MultiStatement

java.lang.Object
  |
  +--org.mmbase.module.database.MultiStatement

All Implemented Interfaces:

java.sql.Statement

public class MultiStatement

extends java.lang.Object

implements java.sql.Statement

MultiStatement is a wrapper class for a callable Statement obtained by a MultiConnection object. The sole function of this class is to log the sql statement passed to it using the MultiConnection that called it - all calls are then passed to the Statement object passed to the constructor.
This class has been expanded with dummy code that enables it to be easily adapted for compilation with jdk1.4 and JDBC 3. In order to compile using this new API, comment-out the Savepoint inner class in the MultiConnection class. If you actually use a JDBC 3 driver, you may also want to adapt the new JDBC 3 methods, so that they pass their call to the driver, instead of throwing an UnsupportedOperationException.

Version:

$Id: MultiStatement.java,v 1.8 2002/03/04 09:50:43 pierre Exp $

Author:

vpro, Pierre van Rooden

Method Summary

void	addBatch(java.lang.String sql)
void	cancel()
void	clearBatch()
void	clearWarnings()
void	close()
boolean	execute(java.lang.String sql)
boolean	execute(java.lang.String sql, int autoGeneratedKeys) Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval.
boolean	execute(java.lang.String sql, int[] columnIndexes) Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
boolean	execute(java.lang.String sql, java.lang.String[] columnNames) Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
int[]	executeBatch()
java.sql.ResultSet	executeQuery(java.lang.String sql)
int	executeUpdate(java.lang.String sql)
int	executeUpdate(java.lang.String sql, int autoGeneratedKeys) Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.
int	executeUpdate(java.lang.String sql, int[] columnIndexes) Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
int	executeUpdate(java.lang.String sql, java.lang.String[] columnNames) Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
java.sql.Connection	getConnection()
int	getFetchDirection()
int	getFetchSize()
java.sql.ResultSet	getGeneratedKeys() Retrieves any auto-generated keys created as a result of executing this Statement object.
int	getMaxFieldSize()
int	getMaxRows()
boolean	getMoreResults()
boolean	getMoreResults(int current) Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.
int	getQueryTimeout()
java.sql.ResultSet	getResultSet()
int	getResultSetConcurrency()
int	getResultSetHoldability() Retrieves the result set holdability for ResultSet objects generated by this Statement object.
int	getResultSetType()
int	getUpdateCount()
java.sql.SQLWarning	getWarnings()
void	setCursorName(java.lang.String name)
void	setEscapeProcessing(boolean enable)
void	setFetchDirection(int dir)
void	setFetchSize(int i)
void	setMaxFieldSize(int max)
void	setMaxRows(int max)
void	setQueryTimeout(int seconds)

Methods inherited from class java.lang.Object

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

Method Detail

executeUpdate

public int executeUpdate(java.lang.String sql)
                  throws java.sql.SQLException

Specified by:

executeUpdate in interface java.sql.Statement

close

public void close()
           throws java.sql.SQLException

Specified by:

close in interface java.sql.Statement

getMaxFieldSize

public int getMaxFieldSize()
                    throws java.sql.SQLException

Specified by:

getMaxFieldSize in interface java.sql.Statement

setMaxFieldSize

public void setMaxFieldSize(int max)
                     throws java.sql.SQLException

Specified by:

setMaxFieldSize in interface java.sql.Statement

getMaxRows

public int getMaxRows()
               throws java.sql.SQLException

Specified by:

getMaxRows in interface java.sql.Statement

setMaxRows

public void setMaxRows(int max)
                throws java.sql.SQLException

Specified by:

setMaxRows in interface java.sql.Statement

setEscapeProcessing

public void setEscapeProcessing(boolean enable)
                         throws java.sql.SQLException

Specified by:

setEscapeProcessing in interface java.sql.Statement

getQueryTimeout

public int getQueryTimeout()
                    throws java.sql.SQLException

Specified by:

getQueryTimeout in interface java.sql.Statement

setQueryTimeout

public void setQueryTimeout(int seconds)
                     throws java.sql.SQLException

Specified by:

setQueryTimeout in interface java.sql.Statement

cancel

public void cancel()
            throws java.sql.SQLException

Specified by:

cancel in interface java.sql.Statement

getWarnings

public java.sql.SQLWarning getWarnings()
                                throws java.sql.SQLException

Specified by:

getWarnings in interface java.sql.Statement

clearWarnings

public void clearWarnings()
                   throws java.sql.SQLException

Specified by:

clearWarnings in interface java.sql.Statement

execute

public boolean execute(java.lang.String sql)
                throws java.sql.SQLException

Specified by:

execute in interface java.sql.Statement

getResultSet

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

Specified by:

getResultSet in interface java.sql.Statement

getUpdateCount

public int getUpdateCount()
                   throws java.sql.SQLException

Specified by:

getUpdateCount in interface java.sql.Statement

getMoreResults

public boolean getMoreResults()
                       throws java.sql.SQLException

Specified by:

getMoreResults in interface java.sql.Statement

setCursorName

public void setCursorName(java.lang.String name)
                   throws java.sql.SQLException

Specified by:

setCursorName in interface java.sql.Statement

executeQuery

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

Specified by:

executeQuery in interface java.sql.Statement

executeBatch

public int[] executeBatch()
                   throws java.sql.SQLException

Specified by:

executeBatch in interface java.sql.Statement

setFetchDirection

public void setFetchDirection(int dir)
                       throws java.sql.SQLException

Specified by:

setFetchDirection in interface java.sql.Statement

getFetchDirection

public int getFetchDirection()
                      throws java.sql.SQLException

Specified by:

getFetchDirection in interface java.sql.Statement

getResultSetConcurrency

public int getResultSetConcurrency()
                            throws java.sql.SQLException

Specified by:

getResultSetConcurrency in interface java.sql.Statement

getResultSetType

public int getResultSetType()
                     throws java.sql.SQLException

Specified by:

getResultSetType in interface java.sql.Statement

addBatch

public void addBatch(java.lang.String sql)
              throws java.sql.SQLException

Specified by:

addBatch in interface java.sql.Statement

clearBatch

public void clearBatch()
                throws java.sql.SQLException

Specified by:

clearBatch in interface java.sql.Statement

getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException

Specified by:

getConnection in interface java.sql.Statement

getFetchSize

public int getFetchSize()
                 throws java.sql.SQLException

Specified by:

getFetchSize in interface java.sql.Statement

setFetchSize

public void setFetchSize(int i)
                  throws java.sql.SQLException

Specified by:

setFetchSize in interface java.sql.Statement

getMoreResults

public boolean getMoreResults(int current)
                       throws java.sql.SQLException

Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.

Parameters:

current - one of CLOSE_CURRENT_RESULT, KEEP_CURRENT_RESULT, or CLOSE_ALL_RESULTS

Returns:

true if the next result is a ResultSet object; false if it is an update count or there are no more results

Since:

MMBase 1.5, JDBC 1.4

getGeneratedKeys

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

Retrieves any auto-generated keys created as a result of executing this Statement object.

Returns:

a ResultSet object containing the auto-generated key(s) generated by the execution of this Statement object

Since:

MMBase 1.5, JDBC 1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         int autoGeneratedKeys)
                  throws java.sql.SQLException

Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.

Parameters:

sql - must be an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing

autoGeneratedKeys - a flag indicating whether auto-generated keys should be made available for retrieval

Returns:

either the row count for INSERT, UPDATE or DELETE statements, or 0 for SQL statements that return nothing

Since:

MMBase 1.5, JDBC 1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         int[] columnIndexes)
                  throws java.sql.SQLException

Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.

Parameters:

sql - must be an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing

columnIndexes - an array of column indexes indicating the columns that should be returned from the inserted row

Returns:

either the row count for INSERT, UPDATE or DELETE statements, or 0 for SQL statements that return nothing

Since:

MMBase 1.5, JDBC 1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         java.lang.String[] columnNames)
                  throws java.sql.SQLException

Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.

Parameters:

sql - must be an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing

columnNames - - an array of the names of the columns that should be returned from the inserted row

Returns:

either the row count for INSERT, UPDATE or DELETE statements, or 0 for SQL statements that return nothing

Since:

MMBase 1.5, JDBC 1.4

execute

public boolean execute(java.lang.String sql,
                       int autoGeneratedKeys)
                throws java.sql.SQLException

Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval.

Parameters:

sql - any SQL statement

autoGeneratedKeys - a flag indicating whether auto-generated keys should be made available for retrieval

Returns:

true if the first result is a ResultSet object; false if it is an update count or there are no results

Since:

MMBase 1.5, JDBC 1.4

execute

public boolean execute(java.lang.String sql,
                       int[] columnIndexes)
                throws java.sql.SQLException

Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.

Parameters:

sql - any SQL statement

columnIndexes - an array of column indexes indicating the columns that should be returned from the inserted row

Returns:

true if the first result is a ResultSet object; false if it is an update count or there are no results

Since:

MMBase 1.5, JDBC 1.4

execute

public boolean execute(java.lang.String sql,
                       java.lang.String[] columnNames)
                throws java.sql.SQLException

Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.

Parameters:

sql - any SQL statement

columnNames - - an array of the names of the columns that should be returned from the inserted row

Returns:

true if the first result is a ResultSet object; false if it is an update count or there are no results

Since:

MMBase 1.5, JDBC 1.4

getResultSetHoldability

public int getResultSetHoldability()
                            throws java.sql.SQLException

Retrieves the result set holdability for ResultSet objects generated by this Statement object.

Returns:

either ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT

Since:

MMBase 1.5, JDBC 1.4