Package org.apache.cassandra.index.sai.view

Class IndexViewManager

java.lang.Object

org.apache.cassandra.index.sai.view.IndexViewManager

public class IndexViewManager
extends Object

Maintain an atomic view for read requests, so that requests can read all data during concurrent compactions.

All per-column SSTableIndex updates should be proxied by StorageAttachedIndexGroup to make sure per-sstable SSTableContext are in-sync.

Constructor Summary

Constructors

Constructor	Description
IndexViewManager(StorageAttachedIndex index)

Method Summary

Modifier and Type	Method	Description
void	drop(Collection<SSTableReader> sstablesToRebuild)
void	invalidate()	Called when index is dropped.
Collection<SSTableContext>	update(Collection<SSTableReader> oldSSTables, Collection<SSTableContext> newSSTableContexts, IndexValidation validation)	Replaces old SSTables with new by creating new immutable view.
View	view()

Methods inherited from class java.lang.Object

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

Constructor Details

IndexViewManager

public IndexViewManager(StorageAttachedIndex index)

Method Details

view

public View view()

update

public Collection<SSTableContext> update(Collection<SSTableReader> oldSSTables,
 Collection<SSTableContext> newSSTableContexts,
 IndexValidation validation)

Replaces old SSTables with new by creating new immutable view.

Parameters:

oldSSTables - A set of SSTables to remove.

newSSTableContexts - A set of SSTableContexts to add to tracker.

validation - Controls how indexes should be validated

Returns:

A set of SSTables which have attached to them invalid index components.

drop

public void drop(Collection<SSTableReader> sstablesToRebuild)

invalidate

public void invalidate()

Called when index is dropped. Mark all SSTableIndex as released and per-column index files will be removed when in-flight queries are completed.