mirror of https://gitee.com/bigwinds/arangodb
109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief Ahuacatl, query result
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triagens GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Ahuacatl/ahuacatl-result.h"
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// -----------------------------------------------------------------------------
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// --SECTION-- private functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Ahuacatl
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free the data held by a cursor
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////////////////////////////////////////////////////////////////////////////////
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static void FreeData (TRI_general_cursor_result_t* result) {
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TRI_json_t* json = (TRI_json_t*) result->_data;
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assert(json);
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TRI_FreeJson(TRI_UNKNOWN_MEM_ZONE, json);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the record at position n of the cursor
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////////////////////////////////////////////////////////////////////////////////
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static TRI_general_cursor_row_t GetAt (TRI_general_cursor_result_t* result,
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const TRI_general_cursor_length_t n) {
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TRI_json_t* json = (TRI_json_t*) result->_data;
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assert(json);
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return (TRI_general_cursor_row_t*) TRI_AtVector(&json->_value._objects, (size_t) n);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the number of rows in the cursor
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////////////////////////////////////////////////////////////////////////////////
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static TRI_general_cursor_length_t GetLength (TRI_general_cursor_result_t* result) {
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TRI_json_t* json = (TRI_json_t*) result->_data;
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assert(json);
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return (TRI_general_cursor_length_t) json->_value._objects._length;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Ahuacatl
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create a result set
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////////////////////////////////////////////////////////////////////////////////
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TRI_general_cursor_result_t* TRI_CreateResultAql (TRI_json_t* data) {
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if (!data || data->_type != TRI_JSON_LIST) {
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return NULL;
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}
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return TRI_CreateCursorResult((void*) data, &FreeData, &GetAt, &GetLength);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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