Package io.ebean.migration.runner

Class MigrationTable

java.lang.Object

io.ebean.migration.runner.MigrationTable

public class MigrationTable
extends Object

Manages the migration table.

Constructor Summary

Constructors

Constructor	Description
MigrationTable(MigrationConfig config, Connection connection, boolean checkState, MigrationPlatform platform)	Construct with server, configuration and jdbc connection (DB admin user).

Method Summary

Modifier and Type	Method	Description
void	createIfNeededAndLock()	Create the table is it does not exist.
Set<String>	getVersions()	Returns the versions that are already applied.
boolean	isEmpty()	Return true if there are no migrations.
List<LocalMigrationResource>	runAll(List<LocalMigrationResource> localVersions)	Run all the migrations in order as needed.
List<LocalMigrationResource>	runInit(LocalMigrationResource initVersion, List<LocalMigrationResource> localVersions)	Run using an init migration.
void	runNonTransactional()	Run non transactional statements (if any) after migration commit.
int	size()	Return the number of migrations in the DB migration table.

Methods inherited from class java.lang.Object

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

Constructor Detail

MigrationTable

public MigrationTable(MigrationConfig config,
                      Connection connection,
                      boolean checkState,
                      MigrationPlatform platform)

Construct with server, configuration and jdbc connection (DB admin user).

Method Detail

size

public int size()

Return the number of migrations in the DB migration table.

getVersions

public Set<String> getVersions()

Returns the versions that are already applied.

createIfNeededAndLock

public void createIfNeededAndLock()
                           throws SQLException,
                                  IOException

Create the table is it does not exist.

Also holds DB lock on migration table and loads existing migrations.

Throws:

SQLException

IOException

isEmpty

public boolean isEmpty()

Return true if there are no migrations.

runAll

public List<LocalMigrationResource> runAll(List<LocalMigrationResource> localVersions)
                                    throws SQLException

Run all the migrations in order as needed.

Returns:

the migrations that have been run (collected if checkstate is true).

Throws:

SQLException

runInit

public List<LocalMigrationResource> runInit(LocalMigrationResource initVersion,
                                            List<LocalMigrationResource> localVersions)
                                     throws SQLException

Run using an init migration.

Returns:

the migrations that have been run (collected if checkstate is true).

Throws:

SQLException

runNonTransactional

public void runNonTransactional()

Run non transactional statements (if any) after migration commit.

These run with auto commit true and run AFTER the migration commit and as such the migration isn't truely atomic - the migration can run and complete and the non-transactional statements fail.