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author | George Mount <mount@google.com> | 2013-04-09 13:45:09 -0700 |
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committer | George Mount <mount@google.com> | 2013-04-11 10:16:06 -0700 |
commit | 6e19729992bb98f77a72d34ce330d2e2c0910c68 (patch) | |
tree | 62a76775c0c17d8583fd2ee645af41e71367bb54 | |
parent | 5101490b4a54a26620856f1154c31a01ed6cd062 (diff) | |
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Add _COUNT support for PhotoProvider to help performance of All Photos.
Bug 8594818
Change-Id: Iab14a945e33ffcbf539b1d7acc704538e4bf48b6
-rw-r--r-- | src/com/android/photos/data/PhotoProvider.java | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/com/android/photos/data/PhotoProvider.java b/src/com/android/photos/data/PhotoProvider.java index cffd1239e..d4310ca95 100644 --- a/src/com/android/photos/data/PhotoProvider.java +++ b/src/com/android/photos/data/PhotoProvider.java @@ -226,6 +226,9 @@ public class PhotoProvider extends SQLiteContentProvider { protected static final String IN = " IN "; protected static final String NESTED_SELECT_START = "("; protected static final String NESTED_SELECT_END = ")"; + protected static final String[] PROJECTION_COUNT = { + "COUNT(*)" + }; /** * For selecting the mime-type for an image. @@ -310,6 +313,7 @@ public class PhotoProvider extends SQLiteContentProvider { @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder, CancellationSignal cancellationSignal) { + projection = replaceCount(projection); int match = matchUri(uri); selection = addIdToSelection(match, selection); selectionArgs = addIdToSelectionArgs(match, uri, selectionArgs); @@ -521,4 +525,12 @@ public class PhotoProvider extends SQLiteContentProvider { return db.query(table, columns, selection, selectionArgs, null, null, orderBy); } } + + protected static String[] replaceCount(String[] projection) { + if (projection != null && projection.length == 1 + && BaseColumns._COUNT.equals(projection[0])) { + return PROJECTION_COUNT; + } + return projection; + } } |