org.h2.command.dml
Class Update

java.lang.Object
  org.h2.command.Prepared
      org.h2.command.dml.Update

public class Update
extends Prepared

This class represents the statement UPDATE

Field Summary

Fields inherited from class org.h2.command.Prepared

headPos, parameters, prepareAlways, session, sqlStatement

Constructor Summary

Update(Session session)

Method Summary

java.lang.String	getPlanSQL() Get the SQL statement with the execution plan.
boolean	isTransactional() Check if this command is transactional.
void	prepare() Prepare this statement.
LocalResult	queryMeta() Get an empty result set containing the meta data.
void	setAssignment(Column column, Expression expression) Add an assignment of the form column = expression.
void	setCondition(Expression condition)
void	setTableFilter(TableFilter tableFilter)
int	update() Execute the statement.

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, getCurrentObjectId, getCurrentRowNumber, getObjectId, getParameters, getSQL, getSQL, getSQL, isQuery, isReadOnly, needRecompile, query, setCommand, setCurrentRowNumber, setHeadPos, setObjectId, setParameterList, setPrepareAlways, setRow, setSession, setSQL, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Update

public Update(Session session)

Method Detail

setTableFilter

public void setTableFilter(TableFilter tableFilter)

setCondition

public void setCondition(Expression condition)

setAssignment

public void setAssignment(Column column,
                          Expression expression)
                   throws java.sql.SQLException

Add an assignment of the form column = expression.

Parameters:

column - the column

expression - the expression

Throws:

java.sql.SQLException

update

public int update()
           throws java.sql.SQLException

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

Throws:

java.sql.SQLException - if it is a query

getPlanSQL

public java.lang.String getPlanSQL()

Description copied from class: Prepared

Get the SQL statement with the execution plan.

Overrides:

getPlanSQL in class Prepared

Returns:

the execution plan

prepare

public void prepare()
             throws java.sql.SQLException

Description copied from class: Prepared

Prepare this statement.

Overrides:

prepare in class Prepared

Throws:

java.sql.SQLException

isTransactional

public boolean isTransactional()

Description copied from class: Prepared

Check if this command is transactional. If it is not, then it forces the current transaction to commit.

Specified by:

isTransactional in class Prepared

Returns:

true if it is

queryMeta

public LocalResult queryMeta()

Description copied from class: Prepared

Get an empty result set containing the meta data.

Specified by:

queryMeta in class Prepared

Returns:

an empty result set