org.apache.cassandra.db.compaction
Class AbstractCompactionTask

java.lang.Object
  org.apache.cassandra.utils.WrappedRunnable
      org.apache.cassandra.io.util.DiskAwareRunnable
          org.apache.cassandra.db.compaction.AbstractCompactionTask

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

CompactionTask

public abstract class AbstractCompactionTask
extends DiskAwareRunnable

Field Summary

protected ColumnFamilyStore	cfs
protected OperationType	compactionType
protected boolean	isUserDefined
protected java.util.Collection<SSTableReader>	sstables

Constructor Summary

AbstractCompactionTask(ColumnFamilyStore cfs, java.util.Collection<SSTableReader> sstables)

Method Summary

protected void	cancel()
abstract int	execute(CompactionManager.CompactionExecutorStatsCollector collector)
ColumnFamilyStore	getColumnFamilyStore()
java.util.Collection<SSTableReader>	getSSTables()
AbstractCompactionTask	isUserDefined(boolean isUserDefined)
boolean	markSSTablesForCompaction() Try to mark the sstable to compact as compacting.
boolean	markSSTablesForCompaction(int min, int max)
AbstractCompactionTask	setCompactionType(OperationType compactionType)
java.lang.String	toString()
void	unmarkSSTables()

Methods inherited from class org.apache.cassandra.io.util.DiskAwareRunnable

getExpectedWriteSize, reduceScopeForLimitedSpace, runMayThrow, runWith

Methods inherited from class org.apache.cassandra.utils.WrappedRunnable

run

Methods inherited from class java.lang.Object

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

Field Detail

cfs

protected final ColumnFamilyStore cfs

sstables

protected java.util.Collection<SSTableReader> sstables

isUserDefined

protected boolean isUserDefined

compactionType

protected OperationType compactionType

Constructor Detail

AbstractCompactionTask

public AbstractCompactionTask(ColumnFamilyStore cfs,
                              java.util.Collection<SSTableReader> sstables)

Method Detail

execute

public abstract int execute(CompactionManager.CompactionExecutorStatsCollector collector)

getColumnFamilyStore

public ColumnFamilyStore getColumnFamilyStore()

getSSTables

public java.util.Collection<SSTableReader> getSSTables()

markSSTablesForCompaction

public boolean markSSTablesForCompaction()

Try to mark the sstable to compact as compacting. It returns true if some sstables have been marked for compaction, false otherwise. This *must* be called before calling execute(). Moreover, unmarkSSTables *must* always be called after execute() if this method returns true.

markSSTablesForCompaction

public boolean markSSTablesForCompaction(int min,
                                         int max)

unmarkSSTables

public void unmarkSSTables()

cancel

protected void cancel()

isUserDefined

public AbstractCompactionTask isUserDefined(boolean isUserDefined)

setCompactionType

public AbstractCompactionTask setCompactionType(OperationType compactionType)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object