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.

Version:

$Id: MultiStatement.java,v 1.13.2.4 2004/08/26 12:40:14 michiel Exp $

Author:

vpro, Pierre van Rooden

Warning: Contains Database Legacy Code

It would possibly be better to pass the logging of the sql query to the code that calls the statement, rather than place it in the statement itself, as it's implementation leads to conflicts between various JDBC versions.

Field Summary

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

Method Summary

void	addBatch(java.lang.String sql)
void	cancel()
protected java.sql.Statement	checkAfterException() Tries to fix the parent connection, if it proves to be broken.
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

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

close

public void close()
           throws java.sql.SQLException

Specified by:

close in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getMaxFieldSize

public int getMaxFieldSize()
                    throws java.sql.SQLException

Specified by:

getMaxFieldSize in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

setMaxFieldSize

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

Specified by:

setMaxFieldSize in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getMaxRows

public int getMaxRows()
               throws java.sql.SQLException

Specified by:

getMaxRows in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

setMaxRows

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

Specified by:

setMaxRows in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

setEscapeProcessing

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

Specified by:

setEscapeProcessing in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getQueryTimeout

public int getQueryTimeout()
                    throws java.sql.SQLException

Specified by:

getQueryTimeout in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

setQueryTimeout

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

Specified by:

setQueryTimeout in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

cancel

public void cancel()
            throws java.sql.SQLException

Specified by:

cancel in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getWarnings

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

Specified by:

getWarnings in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

clearWarnings

public void clearWarnings()
                   throws java.sql.SQLException

Specified by:

clearWarnings in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

execute

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

Specified by:

execute in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getResultSet

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

Specified by:

getResultSet in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getUpdateCount

public int getUpdateCount()
                   throws java.sql.SQLException

Specified by:

getUpdateCount in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

getMoreResults

public boolean getMoreResults()
                       throws java.sql.SQLException

Specified by:

getMoreResults in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

setCursorName

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

Specified by:

setCursorName in interface java.sql.Statement

Throws:

java.sql.SQLException

Warning: No Java Documentation Available.

checkAfterException

protected java.sql.Statement checkAfterException()
                                          throws java.sql.SQLException

Tries to fix the parent connection, if it proves to be broken. It is supposed to be broken if the query "SELECT 1 FROM