AbstractCommitLogService (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.db.commitlog.AbstractCommitLogService

Direct Known Subclasses:: GroupCommitLogService

public abstract class AbstractCommitLogService
extends java.lang.Object

Field Summary

Fields
Modifier and Type	Field	Description
`protected Semaphore`	`haveWork`
`protected long`	`lastSyncedAt`
`protected java.util.concurrent.atomic.AtomicLong`	`pending`
`protected WaitQueue`	`syncComplete`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`awaitTermination()`
`void`	`finishWriteFor(CommitLogSegment.Allocation alloc)`	Block for @param alloc to be sync'd as necessary, and handle bookkeeping
`long`	`getCompletedTasks()`
`long`	`getPendingTasks()`
`protected abstract void`	`maybeWaitForSync(CommitLogSegment.Allocation alloc)`
`void`	`shutdown()`
`void`	`syncBlocking()`	Request sync and wait until the current state is synced.

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

Field Detail

lastSyncedAt
```
protected volatile long lastSyncedAt
```

pending

protected final java.util.concurrent.atomic.AtomicLong pending

syncComplete
```
protected final WaitQueue syncComplete
```

haveWork
```
protected final Semaphore haveWork
```

Method Detail
- finishWriteFor
```
public void finishWriteFor(CommitLogSegment.Allocation alloc)
```
  Block for @param alloc to be sync'd as necessary, and handle bookkeeping
- maybeWaitForSync
```
protected abstract void maybeWaitForSync(CommitLogSegment.Allocation alloc)
```
- shutdown
```
public void shutdown()
```
- syncBlocking
```
public void syncBlocking()
```
  Request sync and wait until the current state is synced. Note: If a sync is in progress at the time of this request, the call will return after both it and a cycle initiated immediately afterwards complete.
- awaitTermination
```
public void awaitTermination()
                      throws java.lang.InterruptedException
```
  Throws:
  
  java.lang.InterruptedException
- getCompletedTasks
```
public long getCompletedTasks()
```
- getPendingTasks
```
public long getPendingTasks()
```