com.atlassian.confluence.upgrade.ddl

Interface AlterTableExecutor

All Known Implementing Classes:

HibernateAlterTableExecutor

public interface AlterTableExecutor

Executes all the various database-specific table altering commands.

PLEASE READ: Due to CONFDEV-7957 (and until HSQLDB addresses their concurrency issues), any upgrade tasks that composes this executor must be wrapped in a transaction proxy with REQUIRES_NEW propagation.

Since:

4.0

Method Summary

Modifier and Type	Method and Description
void	alterTable(String tableName, List<? extends AlterTableCommand> commands) Perform a set of table altering actions on a given table.
AddUniqueConstraintCommand	createAddUniqueConstraintCommand(String constraintName, String... columnNames)
AlterColumnNullabilityCommand	createAlterColumnNullChoiceCommand(String columnName, String oldDataType, NullChoice nullChoice)
DropUniqueConstraintCommand	createDropUniqueConstraintCommand(String constraintName)
List<String>	getAlterTableStatements(String tableName, List<? extends AlterTableCommand> commands)

Method Detail

createAlterColumnNullChoiceCommand

AlterColumnNullabilityCommand createAlterColumnNullChoiceCommand(String columnName,
                                                                 String oldDataType,
                                                                 NullChoice nullChoice)

createAddUniqueConstraintCommand

AddUniqueConstraintCommand createAddUniqueConstraintCommand(String constraintName,
                                                            String... columnNames)

createDropUniqueConstraintCommand

DropUniqueConstraintCommand createDropUniqueConstraintCommand(String constraintName)

alterTable

void alterTable(String tableName,
                List<? extends AlterTableCommand> commands)

Perform a set of table altering actions on a given table. On some databases such as PostgreSQL this is combined into a single statement automatically. On other databases such as HSQLDB, each alter action is executed as a separate statement.

Parameters:

tableName - Name of the table to alter

commands - A collection of alter table actions to perform

getAlterTableStatements

List<String> getAlterTableStatements(String tableName,
                                     List<? extends AlterTableCommand> commands)