com.agimatec.dbmigrate.util

Class BusyLocker

java.lang.Object

com.agimatec.dbmigrate.util.BusyLocker

All Implemented Interfaces:

DatabaseLocker

public class BusyLocker
extends Object
implements DatabaseLocker

Description: Implements the behavior to prevent dbmigrate to execute more than once at the same time on the same database
It INSERTs a "busy" version into the database and DELETEs it afterwards.

Date: 14.10.14

Since:

2.5.19

Field Summary

Fields

Modifier and Type	Field and Description
protected String	BUSY_VERSION
protected static org.slf4j.Logger	log
protected boolean	ownLock

Constructor Summary

Constructors

Constructor and Description
BusyLocker(DBVersionMeta dbVersionMeta)

Method Summary

Modifier and Type	Method and Description
protected DBVersionMeta	createLockMeta(DBVersionMeta dbVersionMeta)
int	getDelayBetweenAttempts()
DBVersionMeta	getLockMeta()
int	getMaxAttempts()
boolean	isEnabled()
boolean	isOwnLock()
void	lock(JdbcDatabase database)
void	setDelayBetweenAttempts(int delayBetweenAttempts)
void	setMaxAttempts(int maxAttempts)
void	setOwnLock(boolean ownLock)
void	unlock(JdbcDatabase database)

Methods inherited from class java.lang.Object

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

Field Detail

BUSY_VERSION

protected final String BUSY_VERSION

See Also:

Constant Field Values

log

protected static final org.slf4j.Logger log

ownLock

protected boolean ownLock

Constructor Detail

BusyLocker

public BusyLocker(DBVersionMeta dbVersionMeta)

Method Detail

getMaxAttempts

public int getMaxAttempts()

setMaxAttempts

public void setMaxAttempts(int maxAttempts)

getDelayBetweenAttempts

public int getDelayBetweenAttempts()

setDelayBetweenAttempts

public void setDelayBetweenAttempts(int delayBetweenAttempts)

isEnabled

public boolean isEnabled()

Specified by:

isEnabled in interface DatabaseLocker

lock

public void lock(JdbcDatabase database)

Specified by:

lock in interface DatabaseLocker

getLockMeta

public DBVersionMeta getLockMeta()

createLockMeta

protected DBVersionMeta createLockMeta(DBVersionMeta dbVersionMeta)

isOwnLock

public boolean isOwnLock()

setOwnLock

public void setOwnLock(boolean ownLock)

unlock

public void unlock(JdbcDatabase database)

Specified by:

unlock in interface DatabaseLocker