Package org.keycloak.connections.jpa.updater.liquibase.lock

Class LiquibaseDBLockProvider

java.lang.Object

org.keycloak.connections.jpa.updater.liquibase.lock.LiquibaseDBLockProvider

All Implemented Interfaces:

DBLockProvider, Provider

public class LiquibaseDBLockProvider
extends Object
implements DBLockProvider

Author:

Marek Posolda

Nested Class Summary

Nested classes/interfaces inherited from interface org.keycloak.models.dblock.DBLockProvider

DBLockProvider.Namespace

Constructor Summary

Constructors

Constructor	Description
LiquibaseDBLockProvider(LiquibaseDBLockProviderFactory factory, KeycloakSession session)

Method Summary

Modifier and Type	Method	Description
void	close()
void	destroyLockInfo()	Will destroy whole state of DB lock (drop table/collection to track locking).
DBLockProvider.Namespace	getCurrentLock()	Returns the current provider namespace locked or null
void	releaseLock()	Release previously acquired lock by this provider.
boolean	supportsForcedUnlock()
void	waitForLock(DBLockProvider.Namespace lock)	Try to retrieve DB lock or wait if retrieve was unsuccessful.

Methods inherited from class java.lang.Object

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

Constructor Detail

LiquibaseDBLockProvider

public LiquibaseDBLockProvider(LiquibaseDBLockProviderFactory factory,
                               KeycloakSession session)

Method Detail

waitForLock

public void waitForLock(DBLockProvider.Namespace lock)

Description copied from interface: DBLockProvider

Try to retrieve DB lock or wait if retrieve was unsuccessful. Throw exception if lock can't be retrieved within specified timeout (900 seconds by default) Throw exception if a different namespace has already been locked by this provider.

Specified by:

waitForLock in interface DBLockProvider

Parameters:

lock - The namespace to lock

releaseLock

public void releaseLock()

Description copied from interface: DBLockProvider

Release previously acquired lock by this provider.

Specified by:

releaseLock in interface DBLockProvider

getCurrentLock

public DBLockProvider.Namespace getCurrentLock()

Description copied from interface: DBLockProvider

Returns the current provider namespace locked or null

Specified by:

getCurrentLock in interface DBLockProvider

Returns:

The namespace locked or null if there is no lock

supportsForcedUnlock

public boolean supportsForcedUnlock()

Specified by:

supportsForcedUnlock in interface DBLockProvider

Returns:

true if provider supports forced unlock at startup

destroyLockInfo

public void destroyLockInfo()

Description copied from interface: DBLockProvider

Will destroy whole state of DB lock (drop table/collection to track locking).

Specified by:

destroyLockInfo in interface DBLockProvider

close

public void close()

Specified by:

close in interface Provider