Package org.h2.command.ddl

Class AlterTable

java.lang.Object

org.h2.command.Prepared

org.h2.command.ddl.DefineCommand

org.h2.command.ddl.SchemaCommand

org.h2.command.ddl.AlterTable

Direct Known Subclasses:

AlterTableAddConstraint, AlterTableDropConstraint, AlterTableRename, AlterTableRenameColumn, AlterTableRenameConstraint

public abstract class AlterTable
extends SchemaCommand

The base class for ALTER TABLE commands.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) boolean	ifTableExists
(package private) String	tableName

Fields inherited from class org.h2.command.ddl.DefineCommand

transactional

Fields inherited from class org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Constructor	Description
AlterTable(SessionLocal session, Schema schema)

Method Summary

Modifier and Type	Method	Description
final void	setIfTableExists(boolean b)
final void	setTableName(String tableName)
final long	update()	Execute the statement.
(package private) abstract long	update(Table table)

Methods inherited from class org.h2.command.ddl.SchemaCommand

getSchema

Methods inherited from class org.h2.command.ddl.DefineCommand

isReadOnly, isTransactional, queryMeta, setTransactional

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, collectDependencies, getCteCleanups, getCurrentRowNumber, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, getType, isCacheable, isQuery, needRecompile, prepare, query, setCommand, setCteCleanups, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, toString

Methods inherited from class java.lang.Object

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

Field Details

tableName

String tableName

ifTableExists

boolean ifTableExists

Constructor Details

AlterTable

AlterTable(SessionLocal session,
 Schema schema)

Method Details

setTableName

public final void setTableName(String tableName)

setIfTableExists

public final void setIfTableExists(boolean b)

update

public final long update()

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

update

abstract long update(Table table)