Package ca.uhn.fhir.jpa.migrate

Class HapiMigrationLock

java.lang.Object

ca.uhn.fhir.jpa.migrate.HapiMigrationLock

All Implemented Interfaces:

AutoCloseable

public class HapiMigrationLock
extends Object
implements AutoCloseable

The approach used in this class is borrowed from org.flywaydb.community.database.ignite.thin.IgniteThinDatabase

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLEAR_LOCK_TABLE_WITH_DESCRIPTION
static final int	DEFAULT_MAX_RETRY_ATTEMPTS
static final Integer	LOCK_PID
static int	ourMaxRetryAttempts
static final int	SLEEP_MILLIS_BETWEEN_LOCK_RETRIES

Constructor Summary

Constructors

Constructor	Description
HapiMigrationLock(HapiMigrationStorageSvc theMigrationStorageSvc)	This constructor should only ever be called from within a try-with-resources so the lock is released when the block is exited

Method Summary

Modifier and Type	Method	Description
void	close()
static void	setMaxRetryAttempts(int theMaxRetryAttempts)

Methods inherited from class java.lang.Object

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

Field Details

LOCK_PID

public static final Integer LOCK_PID

SLEEP_MILLIS_BETWEEN_LOCK_RETRIES

public static final int SLEEP_MILLIS_BETWEEN_LOCK_RETRIES

See Also:

• Constant Field Values

DEFAULT_MAX_RETRY_ATTEMPTS

public static final int DEFAULT_MAX_RETRY_ATTEMPTS

See Also:

• Constant Field Values

ourMaxRetryAttempts

public static int ourMaxRetryAttempts

CLEAR_LOCK_TABLE_WITH_DESCRIPTION

public static final String CLEAR_LOCK_TABLE_WITH_DESCRIPTION

See Also:

• Constant Field Values

Constructor Details

HapiMigrationLock

public HapiMigrationLock(HapiMigrationStorageSvc theMigrationStorageSvc)

This constructor should only ever be called from within a try-with-resources so the lock is released when the block is exited

Method Details

close

public void close()

Specified by:

close in interface AutoCloseable

setMaxRetryAttempts

public static void setMaxRetryAttempts(int theMaxRetryAttempts)