Merge "Clean-up ChangeNotesCache.Weigher"
diff --git a/java/com/google/gerrit/server/notedb/ChangeNotesCache.java b/java/com/google/gerrit/server/notedb/ChangeNotesCache.java
index 1650421..220e683 100644
--- a/java/com/google/gerrit/server/notedb/ChangeNotesCache.java
+++ b/java/com/google/gerrit/server/notedb/ChangeNotesCache.java
@@ -121,12 +121,18 @@
// Single Timestamp overhead.
private static final int T = O + 8;
+ /**
+ * {@inheritDoc}
+ *
+ * <p>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
+ *
+ * <p>Should be kept up to date with {@link ChangeNotesState}. Please, keep weights listed in
+ * the same order as fields.
+ */
@Override
public int weigh(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
return P
+ O
+ 20 // metaId
@@ -138,6 +144,7 @@
+ K // owner
+ P
+ str(state.columns().branch())
+ + P // status
+ P
+ patchSetId() // currentPatchSetId
+ P
@@ -148,9 +155,16 @@
+ str(state.columns().originalSubject())
+ P
+ str(state.columns().submissionId())
- + P // status
+ + 1 // isPrivate
+ + 1 // workInProgress
+ + 1 // reviewStarted
+ + P
+ + K // revertOf
+ + P
+ + patchSetId() // cherryPickOf
+ P
+ set(state.hashtags(), str(10))
+ + str(state.serverId()) // serverId
+ P
+ list(state.patchSets(), patchSet())
+ P
@@ -177,9 +191,6 @@
+ list(state.changeMessages(), changeMessage())
+ P
+ map(state.publishedComments().asMap(), comment())
- + 1 // isPrivate
- + 1 // workInProgress
- + 1 // reviewStarted
+ I; // updateCount
}
diff --git a/java/com/google/gerrit/server/notedb/ChangeNotesState.java b/java/com/google/gerrit/server/notedb/ChangeNotesState.java
index fa32686..27cfb70 100644
--- a/java/com/google/gerrit/server/notedb/ChangeNotesState.java
+++ b/java/com/google/gerrit/server/notedb/ChangeNotesState.java
@@ -81,6 +81,9 @@
* <p>One instance is the output of a single {@link ChangeNotesParser}, and contains types required
* to support public methods on {@link ChangeNotes}. It is intended to be cached in-process.
*
+ * <p>When new fields are added to the {@link ChangeNotesState}, {@link
+ * ChangeNotesCache.Weigher#weigh} should be updated.
+ *
* <p>Note that {@link ChangeNotes} contains more than just a single {@code ChangeNoteState}, such
* as per-draft information, so that class is not cached directly.
*/
