Package org.apache.cassandra.index.sai.metrics

Class ColumnQueryMetrics.TrieIndexMetrics

java.lang.Object

org.apache.cassandra.index.sai.metrics.AbstractMetrics

org.apache.cassandra.index.sai.metrics.ColumnQueryMetrics

org.apache.cassandra.index.sai.metrics.ColumnQueryMetrics.TrieIndexMetrics

All Implemented Interfaces:

QueryEventListener.TrieIndexEventListener

Enclosing class:

ColumnQueryMetrics

public static class ColumnQueryMetrics.TrieIndexMetrics
extends ColumnQueryMetrics
implements QueryEventListener.TrieIndexEventListener

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.index.sai.metrics.ColumnQueryMetrics

ColumnQueryMetrics.BalancedTreeIndexMetrics, ColumnQueryMetrics.TrieIndexMetrics

Field Summary

Fields inherited from class org.apache.cassandra.index.sai.metrics.AbstractMetrics

keyspace, table, tracked, TYPE

Constructor Summary

Constructors

Constructor	Description
TrieIndexMetrics(IndexIdentifier indexIdentifier)

Method Summary

Modifier and Type	Method	Description
void	onSegmentHit()	When query potentially matches value range within a segment, and we need to do a traversal.
void	onTraversalComplete(long traversalTotalTime, TimeUnit unit)	Per-segment trie index traversal time in given units.
QueryEventListener.PostingListEventListener	postingListEventListener()	Returns events listener for trie postings.

Methods inherited from class org.apache.cassandra.index.sai.metrics.AbstractMetrics

createMetricName, createMetricName, release

Methods inherited from class java.lang.Object

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

Constructor Details

TrieIndexMetrics

public TrieIndexMetrics(IndexIdentifier indexIdentifier)

Method Details

onSegmentHit

public void onSegmentHit()

Description copied from interface: QueryEventListener.TrieIndexEventListener

When query potentially matches value range within a segment, and we need to do a traversal.

Specified by:

onSegmentHit in interface QueryEventListener.TrieIndexEventListener

onTraversalComplete

public void onTraversalComplete(long traversalTotalTime,
 TimeUnit unit)

Description copied from interface: QueryEventListener.TrieIndexEventListener

Per-segment trie index traversal time in given units. Recorded when traversal completes.

Specified by:

onTraversalComplete in interface QueryEventListener.TrieIndexEventListener

postingListEventListener

public QueryEventListener.PostingListEventListener postingListEventListener()

Description copied from interface: QueryEventListener.TrieIndexEventListener

Returns events listener for trie postings.

Specified by:

postingListEventListener in interface QueryEventListener.TrieIndexEventListener