コード例 #1
0
		/// <summary>
		/// 
		/// </summary>
		/// <param name="collection"></param>
		/// <param name="filter"></param>
		/// <param name="parameters"></param>
		/// <returns></returns>
		public IEnumerable EnumerableFilter( object collection, string filter, QueryParameters parameters )
		{
			string[ ] concreteFilters = QueryTranslator.ConcreteQueries( filter, factory );
			FilterTranslator[ ] filters = new FilterTranslator[concreteFilters.Length];

			for( int i = 0; i < concreteFilters.Length; i++ )
			{
				filters[ i ] = GetFilterTranslator(
					collection,
					concreteFilters[ i ],
					parameters,
					true );
			}

			if( filters.Length == 0 )
			{
				return new ArrayList( 0 );
			}

			IEnumerable result = null;
			IEnumerable[ ] results = null;
			bool many = filters.Length > 1;
			if( many )
			{
				results = new IEnumerable[filters.Length];
			}

			// execute the queries and return all results as a single enumerable
			for( int i = 0; i < filters.Length; i++ )
			{
				try
				{
					result = filters[ i ].GetEnumerable( parameters, this );
				}
				catch( Exception e )
				{
					throw new ADOException( "could not execute query", e );
				}
				if( many )
				{
					results[ i ] = result;
				}
			}

			return many ? new JoinedEnumerable( results ) : result;
		}
コード例 #2
0
		private FilterTranslator CreateFilterTranslator( string filterString, FilterCacheKey cacheKey )
		{
			FilterTranslator filter = new FilterTranslator( filterString );
			Put( cacheKey, filter );
			return filter;
		}
コード例 #3
0
		/// <summary>
		/// 
		/// </summary>
		/// <param name="collection"></param>
		/// <param name="filter"></param>
		/// <param name="parameters"></param>
		/// <returns></returns>
		public IList Filter( object collection, string filter, QueryParameters parameters )
		{
			string[ ] concreteFilters = QueryTranslator.ConcreteQueries( filter, factory );
			FilterTranslator[ ] filters = new FilterTranslator[concreteFilters.Length];

			for( int i = 0; i < concreteFilters.Length; i++ )
			{
				filters[ i ] = GetFilterTranslator(
					collection,
					concreteFilters[ i ],
					parameters,
					false );

			}

			dontFlushFromFind++; // stops flush being called multiple times if this method is recursively called

			IList results = new ArrayList();
			try
			{
				for( int i = 0; i < concreteFilters.Length; i++ )
				{
					IList currentResults;
					try
					{
						currentResults = filters[ i ].List( this, parameters );
					}
					catch( Exception e )
					{
						throw new ADOException( "could not execute query", e );
					}
					foreach( object res in results )
					{
						currentResults.Add( res );
					}
					results = currentResults;
				}
			}
			finally
			{
				dontFlushFromFind--;
			}
			return results;
		}