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cache DB info on groups for better performance

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This commit is contained in:
Eric House 2012-11-20 07:15:56 -08:00
parent 48dd3bb72e
commit fbfeae379d
2 changed files with 44 additions and 30 deletions
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18
xwords4/android/XWords4/src/org/eehouse/android/xw4/DBUtils.java
View file

@ -864,11 +864,19 @@ public class DBUtils {
}
}
private static HashMap<String,GameGroupInfo> s_groupsCache = null;
private static void invalGroupsCache()
{
s_groupsCache = null;
}
// Return map of string (group name) to info about all games in
// that group.
public static HashMap<String,GameGroupInfo> getGroups( Context context )
{
DbgUtils.logf("getGroupInfo called");
if ( null == s_groupsCache ) {
HashMap<String,GameGroupInfo> result =
new HashMap<String,GameGroupInfo>();
initDB( context );
@ -899,10 +907,12 @@ public class DBUtils {
db.close();
}
DbgUtils.logf("getGroups=>size %d", result.size());
return result;
s_groupsCache = result;
}
return s_groupsCache;
} // getGroups
public static long[] getGames( Context context, long groupID )
public static long[] getGroupGames( Context context, long groupID )
{
long[] result = null;
initDB( context );
@ -947,6 +957,7 @@ public class DBUtils {
values );
db.close();
}
invalGroupsCache();
}
}
return rowid;
@ -969,6 +980,7 @@ public class DBUtils {
db.close();
}
invalGroupsCache();
}
public static void setGroupName( Context context, long groupid,
@ -977,6 +989,7 @@ public class DBUtils {
ContentValues values = new ContentValues();
values.put( DBHelper.GROUPNAME, name );
updateRow( context, DBHelper.TABLE_NAME_GROUPS, groupid, values );
invalGroupsCache();
}
public static void setGroupExpanded( Context context, long groupid,
@ -985,6 +998,7 @@ public class DBUtils {
ContentValues values = new ContentValues();
values.put( DBHelper.EXPANDED, expanded? 1 : 0 );
updateRow( context, DBHelper.TABLE_NAME_GROUPS, groupid, values );
invalGroupsCache();
}
// Change group id of a game

2
xwords4/android/XWords4/src/org/eehouse/android/xw4/GameListAdapter.java
View file

@ -527,7 +527,7 @@ public class GameListAdapter implements ExpandableListAdapter {
{
GameGroupInfo ggi = gameInfo().get(group);
long groupID = ggi.m_id;
long[] rows = DBUtils.getGames( m_context, groupID );
long[] rows = DBUtils.getGroupGames( m_context, groupID );
return rows;
}