org.h2.command.dml
Class Merge

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

public class Merge
extends Prepared

This class represents the statement MERGE

Field Summary

Fields inherited from class org.h2.command.Prepared

headPos, parameters, prepareAlways, session, sqlStatement

Constructor Summary

Merge(Session session)

Method Summary

void	addRow(Expression[] expr) Add a row to this merge statement.
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	setColumns(Column[] columns)
void	setCommand(Command command) Set the command.
void	setKeys(Column[] keys)
void	setQuery(Query query)
void	setTable(Table table)
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, 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

Merge

public Merge(Session session)

Method Detail

setCommand

public void setCommand(Command command)

Description copied from class: Prepared

Set the command.

Overrides:

setCommand in class Prepared

Parameters:

command - the new command

setTable

public void setTable(Table table)

setColumns

public void setColumns(Column[] columns)

setKeys

public void setKeys(Column[] keys)

setQuery

public void setQuery(Query query)

addRow

public void addRow(Expression[] expr)

Add a row to this merge statement.

Parameters:

expr - the list of values

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