mirror of https://gitee.com/bigwinds/arangodb
89 lines
3.1 KiB
JavaScript
89 lines
3.1 KiB
JavaScript
/* jshint strict: false */
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/* global AQL_PARSE, AQL_EXPLAIN, AQL_EXECUTE */
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief ArangoStatement
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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 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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module.isSystem = true;
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var ArangoStatement = require('@arangodb/arango-statement-common').ArangoStatement;
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var GeneralArrayCursor = require('@arangodb/arango-cursor').GeneralArrayCursor;
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const ArangoQueryStreamCursor = require('internal').ArangoQueryStreamCursor;
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief parse a query and return the results
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// //////////////////////////////////////////////////////////////////////////////
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ArangoStatement.prototype.parse = function () {
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var result = AQL_PARSE(this._query);
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return {
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bindVars: result.parameters,
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collections: result.collections,
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ast: result.ast
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};
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};
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief explain a query and return the results
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// //////////////////////////////////////////////////////////////////////////////
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ArangoStatement.prototype.explain = function (options) {
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let opts = this._options || { };
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if (typeof opts === 'object' && typeof options === 'object') {
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Object.keys(options).forEach(function (o) {
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// copy options
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opts[o] = options[o];
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});
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}
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return AQL_EXPLAIN(this._query, this._bindVars, opts);
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};
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief execute the query
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// /
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// / This will return a cursor with the query results in case of success.
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// //////////////////////////////////////////////////////////////////////////////
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ArangoStatement.prototype.execute = function () {
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var opts = this._options || { };
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if (typeof opts === 'object') {
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opts.count = this._doCount;
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if (this._cache !== undefined) {
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opts.cache = this._cache;
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}
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if (opts.stream) {
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return new ArangoQueryStreamCursor(this._query, this._bindVars, opts);
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}
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}
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// {json:[docs], stats:{}, profile:{}, warnings:{}, cached:true}
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var result = AQL_EXECUTE(this._query, this._bindVars, opts);
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return new GeneralArrayCursor(result.json, 0, null, result);
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};
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exports.ArangoStatement = ArangoStatement;
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