78 lines
4.6 KiB
XML
78 lines
4.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<helpdocument version="1.0">
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<!--
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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-->
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<meta>
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<topic id="textscalc01live_data_streamxml" indexer="include" status="PUBLISH">
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<title id="tit">Live Data Stream</title>
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<filename>/text/scalc/01/live_data_stream.xhp</filename>
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</topic>
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</meta>
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<body>
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<bookmark branch="hid/.uno:DataStreams" id="bm_id271704322143929" localize="false"/>
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<bookmark branch="hid/modules/scalc/ui/notebookbar/MenuData-DataStreams" id="bm_id581704322292885" localize="false"/>
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<bookmark branch="hid/modules/scalc/ui/datastreams/DataStreamDialog" id="bm_id240920171033409926" localize="false"/>
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<bookmark branch="hid/modules/scalc/ui/datastreams/@@nowidget@@" id="bm_id240920171033409926" localize="false"/>
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<bookmark branch="index" id="bm_id240920171018528200">
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<bookmark_value>Data Stream;Live data stream</bookmark_value>
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<bookmark_value>Data Stream;Streams</bookmark_value>
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</bookmark>
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<section id="live_data_stream">
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<h1 id="hd_id240920171003006302"><link href="text/scalc/01/live_data_stream.xhp">Streams</link></h1>
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<paragraph id="par_id240920171003293400" role="paragraph"><ahelp hid="."><variable id="streams_desc">Create live data streams for spreadsheets.</variable></ahelp></paragraph>
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</section>
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<section id="howtoget">
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<embed href="text/scalc/00/00000412.xhp#datastream"/>
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</section>
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<embed href="text/shared/optionen/experimental.xhp#experimental"/>
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<embed href="text/shared/need_help.xhp#needhelp"/>
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<paragraph role="paragraph" id="par_id221641995264796">Data streaming is the continuous flow of data generated by various sources. In %PRODUCTNAME Calc, data streams can be processed, stored, analyzed, and acted upon as it's generated in real-time.</paragraph>
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<paragraph role="paragraph" id="par_id831641996045238">Some real-life examples of streaming data include use cases in every industry, including real-time stock trades, up-to-the-minute retail inventory management, social media feeds, multiplayer game interactions, and ride-sharing apps.</paragraph>
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<h2 id="hd_id791641995257145">Source stream</h2>
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<h3 id="hd_id931641998122172">URL</h3>
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<paragraph role="paragraph" id="par_id31641995269740">URL of the source document in the local file system or internet.</paragraph>
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<h3 id="hd_id811641996480534">Interpret stream data as</h3>
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<list type="unordered">
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<listitem>
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<paragraph id="par_id591641996318461" role="listitem"><emph>value1,value2,...,valueN, and fill into range</emph>:</paragraph>
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</listitem>
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<listitem>
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<paragraph id="par_id441641996322078" role="listitem"><emph>address,value</emph>:</paragraph>
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</listitem>
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</list>
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<h3 id="hd_id241641998151807">Empty lines trigger UI refresh</h3>
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<h2 id="hd_id341641995330350">When new data arrives</h2>
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<paragraph role="paragraph" id="par_id731641995339462">There are three features of this option:</paragraph>
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<list type="unordered">
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<listitem>
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<paragraph id="par_id471641995370002" role="listitem"><emph>Move existing data down</emph>: the existing data is moved down in index and the empty space is filled by arriving data. In short, we deal in fix range of indexes. </paragraph>
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</listitem>
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<listitem>
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<paragraph id="par_id841641995386510" role="listitem"><emph>Move the range down</emph>: the arriving data is appended at the end of existing data and range of indexes to be processed is shifted.</paragraph>
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</listitem>
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<listitem>
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<paragraph id="par_id1001641996559358" role="listitem"><emph>Overwrite existing data</emph>: the arriving data overrides the existing data.</paragraph>
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</listitem>
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</list>
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<h2 id="hd_id121641995404922">Maximal Amount of Rows</h2>
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<paragraph role="paragraph" id="par_id961641995414472">Limit the maximum numbers of rows to a specified value or leave undefined, but limited to the %PRODUCTNAME Calc row limit.</paragraph>
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</body>
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</helpdocument>
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