LockFactory (Jackrabbit Oak 1.78.0 API)

java.lang.Object
- org.apache.lucene.store.LockFactory

Direct Known Subclasses:

FSLockFactory, NoLockFactory, SingleInstanceLockFactory, VerifyingLockFactory
```
public abstract class LockFactory
extends Object
```
Base class for Locking implementation. Directory uses instances of this class to implement locking.

Note that there are some useful tools to verify that your LockFactory is working correctly: VerifyingLockFactory, LockStressTest, LockVerifyServer.

See Also:

LockVerifyServer, LockStressTest, VerifyingLockFactory

Field Summary

Fields
Modifier and Type Field Description

protected String lockPrefix

Constructor Summary

Constructors
Constructor Description

LockFactory()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract void`	`clearLock(String lockName)`	Attempt to clear (forcefully unlock and remove) the specified lock.
`String`	`getLockPrefix()`	Get the prefix in use for all locks created in this LockFactory.
`abstract Lock`	`makeLock(String lockName)`	Return a new Lock instance identified by lockName.
`void`	`setLockPrefix(String lockPrefix)`	Set the prefix in use for all locks created in this LockFactory.

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

- Field Detail
  - lockPrefix
```
protected String lockPrefix
```
- Constructor Detail
  - LockFactory
```
public LockFactory()
```
- Method Detail
  - setLockPrefix
```
public void setLockPrefix(String lockPrefix)
```
    Set the prefix in use for all locks created in this LockFactory. This is normally called once, when a Directory gets this LockFactory instance. However, you can also call this (after this instance is assigned to a Directory) to override the prefix in use. This is helpful if you're running Lucene on machines that have different mount points for the same shared directory.
  - getLockPrefix
```
public String getLockPrefix()
```
    Get the prefix in use for all locks created in this LockFactory.
  - makeLock
```
public abstract Lock makeLock(String lockName)
```
    Return a new Lock instance identified by lockName.
    
    Parameters:
    
    lockName - name of the lock to be created.
  - clearLock
```
public abstract void clearLock(String lockName)
                        throws IOException
```
    Attempt to clear (forcefully unlock and remove) the specified lock. Only call this at a time when you are certain this lock is no longer in use.
    
    Parameters:
    
    lockName - name of the lock to be cleared.
    
    Throws:
    
    IOException