Ascending() публичный Метод

Sets one or more key names to index in ascending order.
public Ascending ( ) : IndexKeysBuilder
Результат IndexKeysBuilder
Пример #1
0
        public static IndexKeysBuilder GetIndex(TaskQueue.TQItemSelector selector)
        {
            IndexKeysBuilder ikb = new IndexKeysBuilder();

            foreach (KeyValuePair<string, TaskQueue.TQItemSelectorParam> kv in selector.parameters)
            {
                switch (kv.Value.ValueSet)
                {
                    case TaskQueue.TQItemSelectorSet.Equals:
                        Type kvt = kv.Value.Value.GetType();
                        if (kvt == typeof(bool))
                        {
                            if ((bool)kv.Value.Value)
                            {
                                ikb = ikb.Ascending(kv.Key);
                            }
                            else
                            {
                                ikb = ikb.Descending(kv.Key);
                            }
                        }
                        else
                        {
                            ikb = ikb.Ascending(kv.Key);
                        }
                        break;
                }
            }
            foreach (KeyValuePair<string, TaskQueue.TQItemSelectorParam> kv in selector.parameters)
            {
                switch (kv.Value.ValueSet)
                {
                    case TaskQueue.TQItemSelectorSet.Ascending:
                        ikb = ikb.Ascending(kv.Key);
                        break;
                    case TaskQueue.TQItemSelectorSet.Descending:
                        ikb = ikb.Descending(kv.Key);
                        break;
                }
            }
            return ikb;
        }
Пример #2
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        public void EnsureIndex(Dictionary<string, object> matchData)
        {
            // matchKeys, Interval, Left
            IndexKeysBuilder ikb = new IndexKeysBuilder();
            ikb = ikb.Ascending(matchData.Keys.ToArray());

            CheckConnection();
            Collection.EnsureIndex(ikb);
            //
            var indexE = IndexKeys<MongoRange>.Ascending(r => r.SecondsInterval).Ascending(r => r.Left);
            Collection.EnsureIndex(indexE);
        }
Пример #3
0
 /// <summary>
 ///     添加索引
 /// </summary>
 /// <param name="ascendingKey"></param>
 /// <param name="descendingKey"></param>
 /// <param name="geoSpatialKey"></param>
 /// <param name="option"></param>
 /// <param name="currentCollection"></param>
 /// <returns></returns>
 public static bool CreateMongoIndex(string[] ascendingKey, string[] descendingKey, string geoSpatialKey,
     IndexOptionsBuilder option, MongoCollection currentCollection)
 {
     var mongoCol = currentCollection;
     var indexkeys = new IndexKeysBuilder();
     if (!string.IsNullOrEmpty(geoSpatialKey))
     {
         indexkeys.GeoSpatial(geoSpatialKey);
     }
     indexkeys.Ascending(ascendingKey);
     indexkeys.Descending(descendingKey);
     mongoCol.CreateIndex(indexkeys, option);
     return true;
 }
Пример #4
0
        private void CreateUserCardIndexes()
        {
            var keys = new IndexKeysBuilder();

            keys.Ascending("PlaneswalkerId","MultiverseId");

            var options = new IndexOptionsBuilder();
            options.SetSparse(true);
            options.SetUnique(true);

            var collection = database.GetCollection<UserCard>("user_cards");

            collection.EnsureIndex(keys, options);
        }
Пример #5
0
        private void CreateChangeRequestIndexes()
        {
            var keys = new IndexKeysBuilder();

            keys.Ascending("Id");

            var options = new IndexOptionsBuilder();
            options.SetSparse(true);
            options.SetUnique(true);

            var collection = database.GetCollection<CardChange>("card_changes");

            collection.EnsureIndex(keys, options);
        }
Пример #6
0
        /// <summary>
        /// 创建索引
        /// </summary>
        /// <param name="collection"></param>
        /// <param name="v"></param>
        private void CreateIndex(MongoCollection collection, Variant v)
        {
            var indexs = collection.GetIndexes();
            HashSet<string> hs = new HashSet<string>();
            foreach (IndexInfo index in indexs)
            {
                hs.Add(index.Name);
            }
            foreach (var item in v)
            {
                string indexName = item.Key;
                Variant keys = item.Value as Variant;
                if (keys != null)
                {
                    IndexOptionsBuilder indexOpt = new IndexOptionsBuilder();
                    indexOpt.SetName(indexName);
                    if (keys.ContainsKey("dropDups"))
                    {
                        if (keys["dropDups"] is bool)
                        {
                            indexOpt.SetDropDups((bool)keys["dropDups"]);
                        }
                        keys.Remove("dropDups");
                    }

                    if (keys.ContainsKey("background"))
                    {
                        if (keys["background"] is bool)
                        {
                            indexOpt.SetBackground((bool)keys["background"]);
                        }
                        keys.Remove("background");
                    }

                    if (keys.ContainsKey("unique"))
                    {
                        if (keys["unique"] is bool)
                        {
                            indexOpt.SetUnique((bool)keys["unique"]);
                        }
                        keys.Remove("unique");
                    }

                    if (keys.ContainsKey("sparse"))
                    {
                        if (keys["sparse"] is bool)
                        {
                            indexOpt.SetSparse((bool)keys["sparse"]);
                        }
                        keys.Remove("sparse");
                    }

                    bool find = false;
                    IndexKeysBuilder indexKey = new IndexKeysBuilder();
                    foreach (var dsa in keys)
                    {
                        string ckey = dsa.Key;
                        if (ckey != string.Empty && dsa.Value is int)
                        {
                            int dec = (int)dsa.Value;
                            if (dec == 1)
                            {
                                indexKey.Ascending(ckey);
                                find = true;
                            }
                            else if (dec == -1)
                            {
                                indexKey.Descending(ckey);
                                find = true;
                            }
                        }
                    }
                    if (find)
                    {
                        if (!hs.Contains(indexName))
                            collection.CreateIndex(indexKey, indexOpt);
                    }
                    else
                    {
                        if (hs.Contains(indexName))
                            collection.DropIndexByName(indexName);
                    }
                }
            }
        }
 /// <summary>
 /// 添加索引
 /// </summary>
 /// <param name="AscendingKey"></param>
 /// <param name="DescendingKey"></param>
 /// <param name="IsBackground"></param>
 /// <param name="IsDropDups"></param>
 /// <param name="IsSparse"></param>
 /// <param name="IsUnique"></param>
 /// <param name="IndexName"></param>
 /// <returns></returns>
 public static Boolean CreateMongoIndex(String[] AscendingKey, String[] DescendingKey,
     Boolean IsBackground = false, Boolean IsDropDups = false, Boolean IsSparse = false, Boolean IsUnique = false, String IndexName = "")
 {
     MongoCollection mongoCol = SystemManager.GetCurrentCollection();
     IndexKeysBuilder indexkeys = new IndexKeysBuilder();
     indexkeys.Ascending(AscendingKey);
     indexkeys.Descending(DescendingKey);
     IndexOptionsBuilder option = new IndexOptionsBuilder();
     option.SetBackground(IsBackground);
     option.SetDropDups(IsDropDups);
     option.SetSparse(IsSparse);
     option.SetUnique(IsUnique);
     if (IndexName != String.Empty && !mongoCol.IndexExists(IndexName))
     {
         option.SetName(IndexName);
     }
     mongoCol.CreateIndex(indexkeys, option);
     return true;
 }
 /// <summary>
 ///     添加索引
 /// </summary>
 /// <param name="AscendingKey"></param>
 /// <param name="DescendingKey"></param>
 /// <param name="option"></param>
 /// <returns></returns>
 public static Boolean CreateMongoIndex(String[] AscendingKey, String[] DescendingKey, String GeoSpatialKey,
     IndexOptionsBuilder option)
 {
     MongoCollection mongoCol = SystemManager.GetCurrentCollection();
     var indexkeys = new IndexKeysBuilder();
     if (!String.IsNullOrEmpty(GeoSpatialKey))
     {
         indexkeys.GeoSpatial(GeoSpatialKey);
     }
     indexkeys.Ascending(AscendingKey);
     indexkeys.Descending(DescendingKey);
     mongoCol.CreateIndex(indexkeys, option);
     return true;
 }
 /// <summary>
 /// 添加索引
 /// </summary>
 /// <param name="AscendingKey"></param>
 /// <param name="DescendingKey"></param>
 /// <param name="option"></param>
 /// <returns></returns>
 public static Boolean CreateMongoIndex(String[] AscendingKey, String[] DescendingKey, IndexOptionsBuilder option)
 {
     MongoCollection mongoCol = SystemManager.GetCurrentCollection();
     IndexKeysBuilder indexkeys = new IndexKeysBuilder();
     indexkeys.Ascending(AscendingKey);
     indexkeys.Descending(DescendingKey);
     mongoCol.CreateIndex(indexkeys, option);
     return true;
 }
Пример #10
0
        public void DoCreateIndexes(OperationStatus operation, ConnectionInfo cnn, string database, string collection, IEnumerable<IndexDescriptor> indexes)
        {
            var col = MongoUtilities.Create(cnn).GetDatabase(database).GetCollection(collection);

            try
            {
                col.DropAllIndexes();
            }
            catch (Exception ex)
            {
                Utilities.LogException(ex);
            }

            var count = 0;
            var errors = new List<string>();
            foreach (var index in indexes)
            {
                operation.PercentComplete = (int) ((100.0 / (double)indexes.Count()) * (double) count);
                operation.Description = string.Format(Properties.Resources.ManageIndexes_Creating, ++count);

                try
                {
                    var keys = new IndexKeysBuilder();

                    foreach (var property in index.IndexedProperties)
                    {
                        switch (property.IndexType)
                        {
                            case IndexType.Descending:
                                keys.Descending(property.PropertyName);
                                break;
                            case IndexType.Geospatial:
                                keys.GeoSpatial(property.PropertyName);
                                break;
                            default:
                                keys.Ascending(property.PropertyName);
                                break;
                        }
                    }

                    var options = new IndexOptionsBuilder();
                    options.SetSparse(index.IsSparse);
                    options.SetUnique(index.IsUnique);

                    col.CreateIndex(keys, options);
                }
                catch (Exception ex)
                {
                    if (ex.Message.Contains("2d has to be first"))
                    {
                        errors.Add(string.Format(Properties.Resources.ManageIndexes_GeospatialNotFirst, count));
                    }
                    else if (ex.Message.Contains("geo field") || ex.Message.Contains("location object expected"))
                    {
                        errors.Add(string.Format(Properties.Resources.ManageIndexes_InvalidGeospatial, count));
                    }
                    else if (ex.Message.Contains("duplicate key"))
                    {
                        errors.Add(string.Format(Properties.Resources.ManageIndexes_InvalidUnique, count));
                    }
                    else
                    {
                        errors.Add(string.Format(Properties.Resources.ManageIndexes_UnknownError, count, ex.Message));
                        Utilities.LogException(ex);
                    }
                }
            }

            operation.IsComplete = true;
            if (errors.Count == 0)
            {
                operation.IsSuccess = true;
                operation.Description = string.Format(Properties.Resources.ManageIndexes_Success, indexes.Count());
            }
            else
            {
                operation.IsSuccess = false;
                var errorString = new StringBuilder();
                errors.ToList().ForEach(
                    error =>
                    {
                        errorString.Append("\n");
                        errorString.Append(error);
                    });
                operation.Description = string.Format(Properties.Resources.ManageIndexes_Fail, errors.Count, errorString);
            }
        }
Пример #11
0
 /// <summary>
 ///     添加索引
 /// </summary>
 /// <param name="IdxOpt"></param>
 /// <param name="option"></param>
 /// <param name="currentCollection"></param>
 /// <returns></returns>
 public static bool CreateMongoIndex(IndexOption IdxOpt,
     IndexOptionsBuilder option, MongoCollection currentCollection,ref string errorMessage)
 {
     var mongoCol = currentCollection;
     var indexkeys = new IndexKeysBuilder();
     if (!string.IsNullOrEmpty(IdxOpt.GeoSpatialHaystackKey)) indexkeys.GeoSpatialHaystack(IdxOpt.GeoSpatialHaystackKey);
     if (!string.IsNullOrEmpty(IdxOpt.GeoSpatialKey)) indexkeys.GeoSpatial(IdxOpt.GeoSpatialKey);
     if (!string.IsNullOrEmpty(IdxOpt.GeoSpatialSphericalKey)) indexkeys.GeoSpatialSpherical(IdxOpt.GeoSpatialSphericalKey);
     if (!string.IsNullOrEmpty(IdxOpt.HashedKey)) indexkeys.Hashed(IdxOpt.HashedKey);
     indexkeys.Ascending(IdxOpt.AscendingKey.ToArray());
     indexkeys.Descending(IdxOpt.DescendingKey.ToArray());
     indexkeys.Text(IdxOpt.TextKey.ToArray());
     //CreateIndex失败的时候会出现异常!
     try
     {
         var result = mongoCol.CreateIndex(indexkeys, option);
         return result.Response.GetElement("ok").Value.AsInt32 == 1;
     }
     catch (Exception ex)
     {
         errorMessage = ex.ToString();
         return false;
     }
 }