Package com.google.gerrit.server.notedb

Class ChangeNotesCache.Weigher

java.lang.Object

com.google.gerrit.server.notedb.ChangeNotesCache.Weigher

All Implemented Interfaces:

com.google.common.cache.Weigher<ChangeNotesCache.Key,ChangeNotesState>

Enclosing class:

ChangeNotesCache

public static class ChangeNotesCache.Weigher
extends Object
implements com.google.common.cache.Weigher<ChangeNotesCache.Key,ChangeNotesState>

Constructor Summary

Constructors

Constructor	Description
Weigher()

Method Summary

Modifier and Type	Method	Description
int	weigh(ChangeNotesCache.Key key, ChangeNotesState state)

Methods inherited from class java.lang.Object

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

Constructor Details

Weigher

public Weigher()

Method Details

weigh

public int weigh(ChangeNotesCache.Key key,
 ChangeNotesState state)

Take all columns and all collection sizes into account, but use estimated average element sizes rather than iterating over collections. Numbers are largely hand-wavy based on http://stackoverflow.com/questions/258120/what-is-the-memory-consumption-of-an-object-in-java

Should be kept up to date with ChangeNotesState. Please, keep weights listed in the same order as fields.

Specified by:

weigh in interface com.google.common.cache.Weigher<ChangeNotesCache.Key,ChangeNotesState>