/// <summary>
        /// Advances the reader to the next result when reading the results of a batch of statements.
        /// </summary>
        /// <returns>
        /// true if there are more result sets; otherwise false.
        /// </returns>
        public override bool NextResult()
        {
            if (this.wrappedReader.NextResult())
            {
                this.queryResults = null;
                return(true);
            }

            return(false);
        }
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        /// <summary>
        /// Initializes a new instance of the EFCachingDataReaderCacheWriter class.
        /// </summary>
        /// <param name="wrappedReader">The wrapped reader.</param>
        /// <param name="addToCache">The delegate used to add the result to the cache when the reader finishes.</param>
        /// <param name="behavior">An instance of System.Data.CommandBehavior.</param>
        public EFCachingDataReaderCacheWriter(DbDataReader wrappedReader, Action <DbQueryResults> addToCache, CommandBehavior behavior)
        {
            this.wrappedReader = wrappedReader;
            this.addToCache    = addToCache;
            base.behavior      = behavior;

            this.queryResult = new DbQueryResults(this.wrappedReader)
            {
                FieldCount        = this.wrappedReader.FieldCount,
                VisibleFieldCount = this.wrappedReader.VisibleFieldCount
            };
        }
        /// <summary>
        /// Advances the reader to the next record in a result set.
        /// </summary>
        /// <returns>
        /// true if there are more rows; otherwise false.
        /// </returns>
        public override bool Read()
        {
            if (this.wrappedReader.Read())
            {
                var values = new object[this.wrappedReader.FieldCount];

                this.wrappedReader.GetValues(values);
                SetValues(values);
                if (this.queryResults != null)
                {
                    this.queryResults.Rows.Add(values);
                    if (this.queryResults.Rows.Count > this.maxRows)
                    {
                        this.queryResults = null;
                    }
                }

                return(true);
            }

            return(false);
        }
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 /// <summary>
 /// Closes the <see cref="T:System.Data.Common.DbDataReader"/> object.
 /// </summary>
 public override void Close()
 {
     if (this.queryResult != null && this.queryResult.RowsCount > 0)
     {
         ///Reader not yet closed
         if (!this.wrappedReader.IsClosed)
         {
             ///Complete result has been fetched from database.
             if (!this.wrappedReader.Read())
             {
                 this.addToCache(this.queryResult);
                 this.queryResult.Dispose();
                 this.queryResult = null;
             }
             else ///There was still some data to be read when the reader is closed
             ///We shall not cache incomplete result
             {
                 this.queryResult.Dispose();
                 this.queryResult = null;
             }
         }
     }
     this.wrappedReader.Close();
 }
 /// <summary>
 /// Initializes a new instance of the CachingDataReaderCacheReader class.
 /// </summary>
 /// <param name="item">The cached item.</param>
 /// <param name="behavior">An instance of System.Data.CommandBehavior.</param>
 public CachingDataReaderCacheReader(DbQueryResults queryResults, CommandBehavior behavior)
 {
     this.queryResults = queryResults;
     base.behavior     = behavior;
 }
Esempio n. 6
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 /// <summary>
 /// Initializes a new instance of the CachingDataReaderCacheReader class.
 /// </summary>
 /// <param name="queryResults">The query results.</param>
 public CachingDataReaderCacheReader(DbQueryResults queryResults)
 {
     this.queryResults = queryResults;
 }