UpdateLocks (Solr 9.8.0 core API)

java.lang.Object
- org.apache.solr.update.UpdateLocks

```
public class UpdateLocks
extends Object
```
Locks associated with updates in connection with the UpdateLog.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Constructor Summary

Constructors
Constructor Description

UpdateLocks(long docLockTimeoutMs)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`blockUpdates()`
`void`	`lockForUpdate()`
`<R> R`	`runWithLock(org.apache.lucene.util.BytesRef id, IOFunction<Condition,R> function)`	Acquires a lock for the given doc ID, executes the function, and releases the lock.
`void`	`unblockUpdates()`
`void`	`unlockForUpdate()`

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

- Constructor Detail
  - UpdateLocks
```
public UpdateLocks(long docLockTimeoutMs)
```
- Method Detail
  - runWithLock
```
public <R> R runWithLock(org.apache.lucene.util.BytesRef id,
                         IOFunction<Condition,R> function)
                  throws IOException
```
    Acquires a lock for the given doc ID, executes the function, and releases the lock. The provided Condition can be used for wait/notify control. The per-doc locking is needed indirectly due to SolrCloud's internal out-of-order versioned update design.
    
    Throws:
    
    IOException
  - lockForUpdate
```
public void lockForUpdate()
```
  - unlockForUpdate
```
public void unlockForUpdate()
```
  - blockUpdates
```
public void blockUpdates()
```
  - unblockUpdates
```
public void unblockUpdates()
```