org.nuxeo.runtime.migration

Class MigrationServiceImpl.InvalidatorMigrator

java.lang.Object

org.nuxeo.runtime.migration.MigrationServiceImpl.InvalidatorMigrator

All Implemented Interfaces:

MigrationService.Migrator

Enclosing class:

MigrationServiceImpl

public static class MigrationServiceImpl.InvalidatorMigrator
extends Object
implements MigrationService.Migrator

A migrator wrapper to send invalidations to other nodes when calling notifyStatusChange().

Since:

10.10

Field Summary

Fields

Modifier and Type	Field and Description
protected String	id
protected MigrationServiceImpl.MigrationInvalidator	invalidator
protected MigrationService.Migrator	migrator

Constructor Summary

Constructors

Constructor and Description
InvalidatorMigrator(String id, MigrationService.Migrator migrator, MigrationServiceImpl.MigrationInvalidator invalidator)

Method Summary

Modifier and Type	Method and Description
void	notifyStatusChange() Allows notification of status change for a running step or new state.
String	probeState() Probes the current state of a migration by analyzing persistent data.
void	run(String step, MigrationService.MigrationContext migrationContext) Runs a migration step.

Methods inherited from class java.lang.Object

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

Field Detail

id

protected final String id

migrator

protected final MigrationService.Migrator migrator

invalidator

protected final MigrationServiceImpl.MigrationInvalidator invalidator

Constructor Detail

InvalidatorMigrator

public InvalidatorMigrator(String id,
                           MigrationService.Migrator migrator,
                           MigrationServiceImpl.MigrationInvalidator invalidator)

Method Detail

probeState

public String probeState()

Description copied from interface: MigrationService.Migrator

Probes the current state of a migration by analyzing persistent data.

Assumes no migration step is currently running.

THIS METHOD MAY TAKE A WHILE as it needs to get information from persistent storage.

Specified by:

probeState in interface MigrationService.Migrator

Returns:

the probed state, or null if it cannot be determined

run

public void run(String step,
                MigrationService.MigrationContext migrationContext)

Description copied from interface: MigrationService.Migrator

Runs a migration step.

This method should periodically check for MigrationService.MigrationContext.isShutdownRequested() and Thread.isInterrupted() and return if true.

Specified by:

run in interface MigrationService.Migrator

Parameters:

step - the migration step to run

migrationContext - the migration context.

notifyStatusChange

public void notifyStatusChange()

Description copied from interface: MigrationService.Migrator

Allows notification of status change for a running step or new state.

Specified by:

notifyStatusChange in interface MigrationService.Migrator