Package com.atlassian.confluence.upgrade.ddl

Class AlterColumnNullabilityCommand

java.lang.Object

com.atlassian.confluence.upgrade.ddl.AlterColumnNullabilityCommand

All Implemented Interfaces:

AlterTableCommand

public class AlterColumnNullabilityCommand
extends Object
implements AlterTableCommand

Marks a column as not null or nullable. Make sure that the column being altered to NOT NULL is not used in an index on SQL Server. If it is, drop the index first, alter the column, and recreate the index.

Constructor Summary

Constructors

Constructor	Description
AlterColumnNullabilityCommand(HibernateDatabaseCapabilities databaseCapabilities, String columnName, String oldDataType, NullChoice nullChoice)	Create an alter column to null/not null action.

Method Summary

Modifier and Type	Method	Description
String	getCommandName()
String	getCommandParameters()

Methods inherited from class java.lang.Object

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

Constructor Detail

AlterColumnNullabilityCommand

public AlterColumnNullabilityCommand(HibernateDatabaseCapabilities databaseCapabilities,
                                     String columnName,
                                     String oldDataType,
                                     NullChoice nullChoice)

Create an alter column to null/not null action.

Parameters:

columnName - The name of the column to alter

oldDataType - The original data type of the column, required because some DBs don't let you only alter the null/not null property of the column. It is your responsibility to get this right.

nullChoice - Whether the column should be nullable or not null.

Since:

7.20

Method Detail

getCommandName

public String getCommandName()

Specified by:

getCommandName in interface AlterTableCommand

Returns:

The keyword/name of the current command for the current database (e.g. altering a column is "alter column" on PostgreSQL and "modify" on MySQL.

getCommandParameters

public String getCommandParameters()

Specified by:

getCommandParameters in interface AlterTableCommand

Returns:

The part that comes after the command name. E.g. "colname set not null" which would be after "alter column colname set not null"