org.apache.cassandra.db.compaction

Class SSTableSplitter.SplitController

java.lang.Object

org.apache.cassandra.db.compaction.CompactionController

org.apache.cassandra.db.compaction.SSTableSplitter.SplitController

All Implemented Interfaces:

java.lang.AutoCloseable

Enclosing class:

SSTableSplitter

public static class SSTableSplitter.SplitController
extends CompactionController

Field Summary

Fields inherited from class org.apache.cassandra.db.compaction.CompactionController

cfs, gcBefore

Constructor Summary

Constructors

Constructor and Description
SplitController(ColumnFamilyStore cfs)

Method Summary

Modifier and Type	Method and Description
com.google.common.base.Predicate<java.lang.Long>	getPurgeEvaluator(DecoratedKey key)

Methods inherited from class org.apache.cassandra.db.compaction.CompactionController

close, getColumnFamily, getFullyExpiredSSTables, getFullyExpiredSSTables, getKeyspace

Methods inherited from class java.lang.Object

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

Constructor Detail

SplitController

public SplitController(ColumnFamilyStore cfs)

Method Detail

getPurgeEvaluator

public com.google.common.base.Predicate<java.lang.Long> getPurgeEvaluator(DecoratedKey key)

Overrides:

getPurgeEvaluator in class CompactionController

Returns:

a predicate for whether tombstones marked for deletion at the given time for the given partition are purgeable; we calculate this by checking whether the deletion time is less than the min timestamp of all SSTables containing his partition and not participating in the compaction. This means there isn't any data in those sstables that might still need to be suppressed by a tombstone at this timestamp.