com.datastax.driver.core.schemabuilder

Class Alter

java.lang.Object

com.datastax.driver.core.schemabuilder.Alter

public class Alter
extends Object

An in-construction ALTER TABLE statement.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Alter.AddColumn An ADD column clause.
static class	Alter.AlterColumn An ALTER column clause.
static class	Alter.Options The table options of an ALTER TABLE statement.
static class	Alter.RenameColumn A RENAME column clause.

Method Summary

Methods

Modifier and Type	Method and Description
Alter.AddColumn	addColumn(String columnName) Add a new ADD column clause to this ALTER TABLE statement.
Alter.AddColumn	addStaticColumn(String columnName) Add a new ADD column clause to this ALTER TABLE statement, to add a static column.
Alter.AlterColumn	alterColumn(String columnName) Add an ALTER column clause (to change the column type) to this ALTER TABLE statement.
String	buildInternal()
SchemaStatement	dropColumn(String columnName) Add a new DROP column clause to this ALTER TABLE statement.
Alter.RenameColumn	renameColumn(String columnName) Add a new RENAME column clause to this ALTER TABLE statement.
Alter.Options	withOptions() Add options (WITH clause) to this ALTER TABLE statement.

Methods inherited from class java.lang.Object

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

Method Detail

alterColumn

public Alter.AlterColumn alterColumn(String columnName)

Add an ALTER column clause (to change the column type) to this ALTER TABLE statement.

Parameters:

columnName - the name of the column to be altered.

Returns:

a new Alter.AlterColumn instance.

addColumn

public Alter.AddColumn addColumn(String columnName)

Add a new ADD column clause to this ALTER TABLE statement.

Parameters:

columnName - the name of the column to be added.

Returns:

a new Alter.AddColumn instance.

addStaticColumn

public Alter.AddColumn addStaticColumn(String columnName)

Add a new ADD column clause to this ALTER TABLE statement, to add a static column.

Parameters:

columnName - the name of the column to be added.

Returns:

a new Alter.AddColumn instance.

dropColumn

public SchemaStatement dropColumn(String columnName)

Add a new DROP column clause to this ALTER TABLE statement.

Note that you cannot drop a column that is part of the primary key.

Parameters:

columnName - the name of the column to be dropped.

Returns:

the final ALTER TABLE DROP COLUMN statement.

renameColumn

public Alter.RenameColumn renameColumn(String columnName)

Add a new RENAME column clause to this ALTER TABLE statement.

Note that you can only rename a column that is part of the primary key.

Parameters:

columnName - the name of the column to be renamed.

Returns:

a new Alter.RenameColumn instance.

withOptions

public Alter.Options withOptions()

Add options (WITH clause) to this ALTER TABLE statement.

Returns:

a new Alter.Options instance.

buildInternal

public String buildInternal()