65 lines
2.1 KiB
JavaScript
65 lines
2.1 KiB
JavaScript
// Copyright (c) 2022, 2023, Oracle and/or its affiliates.
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//-----------------------------------------------------------------------------
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//
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// This software is dual-licensed to you under the Universal Permissive License
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// (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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// 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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// either license.
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//
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// If you elect to accept the software under the Apache License, Version 2.0,
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// the following applies:
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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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// https://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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//-----------------------------------------------------------------------------
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'use strict';
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const constants = require("../constants.js");
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const MessageWithData = require("./withData.js");
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const errors = require("../../../errors.js");
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/**
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* Executes OFETCH RPC
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*
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* @class FetchMessage
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* @extends {MessageWithData}
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*/
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class FetchMessage extends MessageWithData {
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constructor(connection, statement, options, resultSet) {
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super(connection, statement, options);
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this.resultSet = resultSet;
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this.functionCode = constants.TNS_FUNC_FETCH;
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}
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//-------------------------------------------------------------------------
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// encode()
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//
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// Write the cursor ID and the number of rows to be fetched in the
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// Fetch Message RPC
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//-------------------------------------------------------------------------
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encode(buf) {
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this.writeFunctionHeader(buf);
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if (this.statement.cursorId === 0) {
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errors.throwErr(errors.ERR_CURSOR_HAS_BEEN_CLOSED);
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}
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buf.writeUB4(this.statement.cursorId);
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buf.writeUB4(this.options.fetchArraySize);
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}
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}
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module.exports = FetchMessage;
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