StandardLockService (liquibase 4.20.0 API)

java.lang.Object
- liquibase.lockservice.StandardLockService

All Implemented Interfaces:

LockService, PrioritizedService

Direct Known Subclasses:

LockServiceImpl
```
public class StandardLockService
extends Object
implements LockService
```

Field Summary

Fields
Modifier and Type	Field and Description
`protected Long`	`changeLogLockPollRate`
`protected Long`	`changeLogLockRecheckTime`
`protected static ResourceBundle`	`coreBundle`
`protected Database`	`database`
`protected boolean`	`hasChangeLogLock`
`protected Boolean`	`hasDatabaseChangeLogLockTable`
`protected boolean`	`isDatabaseChangeLogLockTableInitialized`
`protected ObjectQuotingStrategy`	`quotingStrategy`
`protected SecureRandom`	`random`

Fields inherited from interface liquibase.servicelocator.PrioritizedService
COMPARATOR, PRIORITY_DATABASE, PRIORITY_DEFAULT

Constructor Summary

Constructors
Constructor and Description

StandardLockService()

Constructors
Constructor and Description
`StandardLockService()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`acquireLock()`
`void`	`destroy()`
`void`	`forceReleaseLock()` Releases whatever locks are on the database change log table
`protected Long`	`getChangeLogLockRecheckTime()`
`protected Long`	`getChangeLogLockWaitTime()`
`int`	`getPriority()`
`boolean`	`hasChangeLogLock()`
`protected boolean`	`hasDatabaseChangeLogLockTable()`
`protected boolean`	`hasDatabaseChangeLogLockTable(boolean forceRecheck)` Check whether the databasechangeloglock table exists in the database.
`void`	`init()`
`boolean`	`isDatabaseChangeLogLockTableInitialized(boolean tableJustCreated)`
`protected boolean`	`isDatabaseChangeLogLockTableInitialized(boolean tableJustCreated, boolean forceRecheck)` Determine whether the databasechangeloglock table has been initialized.
`DatabaseChangeLogLock[]`	`listLocks()`
`void`	`releaseLock()`
`void`	`reset()` Clears information the lock handler knows about the tables.
`void`	`setChangeLogLockRecheckTime(long changeLogLockRecheckTime)`
`void`	`setChangeLogLockWaitTime(long changeLogLockWaitTime)`
`void`	`setDatabase(Database database)`
`boolean`	`supports(Database database)`
`void`	`waitForLock()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - coreBundle
```
protected static final ResourceBundle coreBundle
```
  - database
```
protected Database database
```
  - hasChangeLogLock
```
protected boolean hasChangeLogLock
```
  - changeLogLockPollRate
```
protected Long changeLogLockPollRate
```
  - changeLogLockRecheckTime
```
protected Long changeLogLockRecheckTime
```
  - hasDatabaseChangeLogLockTable
```
protected Boolean hasDatabaseChangeLogLockTable
```
  - isDatabaseChangeLogLockTableInitialized
```
protected boolean isDatabaseChangeLogLockTableInitialized
```
  - quotingStrategy
```
protected ObjectQuotingStrategy quotingStrategy
```
  - random
```
protected final SecureRandom random
```
- Constructor Detail
  - StandardLockService
```
public StandardLockService()
```
- Method Detail
  - getPriority
```
public int getPriority()
```
    Specified by:
    
    getPriority in interface PrioritizedService
  - supports
```
public boolean supports(Database database)
```
    Specified by:
    
    supports in interface LockService
  - setDatabase
```
public void setDatabase(Database database)
```
    Specified by:
    
    setDatabase in interface LockService
  - getChangeLogLockWaitTime
```
protected Long getChangeLogLockWaitTime()
```
  - setChangeLogLockWaitTime
```
public void setChangeLogLockWaitTime(long changeLogLockWaitTime)
```
    Specified by:
    
    setChangeLogLockWaitTime in interface LockService
  - getChangeLogLockRecheckTime
```
protected Long getChangeLogLockRecheckTime()
```
  - setChangeLogLockRecheckTime
```
public void setChangeLogLockRecheckTime(long changeLogLockRecheckTime)
```
    Specified by:
    
    setChangeLogLockRecheckTime in interface LockService
  - init
```
public void init()
          throws DatabaseException
```
    Specified by:
    
    init in interface LockService
    
    Throws:
    
    DatabaseException
  - isDatabaseChangeLogLockTableInitialized
```
public boolean isDatabaseChangeLogLockTableInitialized(boolean tableJustCreated)
```
  - isDatabaseChangeLogLockTableInitialized
```
protected boolean isDatabaseChangeLogLockTableInitialized(boolean tableJustCreated,
                                                          boolean forceRecheck)
```
    Determine whether the databasechangeloglock table has been initialized.
    
    Parameters:
    
    forceRecheck - if true, do not use any cached information, and recheck the actual database
  - hasChangeLogLock
```
public boolean hasChangeLogLock()
```
    Specified by:
    
    hasChangeLogLock in interface LockService
  - hasDatabaseChangeLogLockTable
```
protected boolean hasDatabaseChangeLogLockTable(boolean forceRecheck)
```
    Check whether the databasechangeloglock table exists in the database.
    
    Parameters:
    
    forceRecheck - if true, do not use any cached information and check the actual database
  - hasDatabaseChangeLogLockTable
```
protected boolean hasDatabaseChangeLogLockTable()
                                         throws DatabaseException
```
    Throws:
    
    DatabaseException
  - waitForLock
```
public void waitForLock()
                 throws LockException
```
    Specified by:
    
    waitForLock in interface LockService
    
    Throws:
    
    LockException
  - acquireLock
```
public boolean acquireLock()
                    throws LockException
```
    Specified by:
    
    acquireLock in interface LockService
    
    Throws:
    
    LockException
  - releaseLock
```
public void releaseLock()
                 throws LockException
```
    Specified by:
    
    releaseLock in interface LockService
    
    Throws:
    
    LockException
  - listLocks
```
public DatabaseChangeLogLock[] listLocks()
                                  throws LockException
```
    Specified by:
    
    listLocks in interface LockService
    
    Throws:
    
    LockException
  - forceReleaseLock
```
public void forceReleaseLock()
                      throws LockException,
                             DatabaseException
```
    Description copied from interface: LockService
    
    Releases whatever locks are on the database change log table
    
    Specified by:
    
    forceReleaseLock in interface LockService
    
    Throws:
    
    LockException
    
    DatabaseException
  - reset
```
public void reset()
```
    Description copied from interface: LockService
    
    Clears information the lock handler knows about the tables. Should only be called by Liquibase internal calls
    
    Specified by:
    
    reset in interface LockService
  - destroy
```
public void destroy()
             throws DatabaseException
```
    Specified by:
    
    destroy in interface LockService
    
    Throws:
    
    DatabaseException

Class StandardLockService

Field Summary

Fields inherited from interface liquibase.servicelocator.PrioritizedService

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

coreBundle

database

hasChangeLogLock

changeLogLockPollRate

changeLogLockRecheckTime

hasDatabaseChangeLogLockTable

isDatabaseChangeLogLockTableInitialized

quotingStrategy

random

Constructor Detail

StandardLockService

Method Detail

getPriority

supports

setDatabase

getChangeLogLockWaitTime

setChangeLogLockWaitTime

getChangeLogLockRecheckTime

setChangeLogLockRecheckTime

init

isDatabaseChangeLogLockTableInitialized

isDatabaseChangeLogLockTableInitialized

hasChangeLogLock

hasDatabaseChangeLogLockTable

hasDatabaseChangeLogLockTable

waitForLock

acquireLock

releaseLock

listLocks

forceReleaseLock

reset

destroy