65 lines
2.4 KiB
MQL5
65 lines
2.4 KiB
MQL5
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//+------------------------------------------------------------------+
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//| CalendarFilterCached.mqh |
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//| Copyright 2022, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include "CalendarFilter.mqh"
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#include "CalendarCache.mqh"
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#include "AutoPtr.mqh"
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//+------------------------------------------------------------------+
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//| Calendar filter based on cached data |
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//+------------------------------------------------------------------+
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class CalendarFilterCached: public CalendarFilter
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{
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protected:
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AutoPtr<CalendarCache> cache;
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virtual bool calendarCountryById(ulong country_id, MqlCalendarCountry &cnt) override
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{
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return cache[].calendarCountryById(country_id, cnt);
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}
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virtual bool calendarEventById(ulong event_id, MqlCalendarEvent &event) override
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{
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return cache[].calendarEventById(event_id, event);
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}
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virtual int calendarValueHistoryByEvent(ulong event_id, MqlCalendarValue &temp[],
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datetime _from, datetime _to = 0) override
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{
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return cache[].calendarValueHistoryByEvent(event_id, temp, _from, _to);
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}
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virtual int calendarValueHistory(MqlCalendarValue &temp[],
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datetime _from, datetime _to = 0,
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const string _code = NULL, const string _coin = NULL) override
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{
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return cache[].calendarValueHistory(temp, _from, _to, _code, _coin);
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}
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virtual int calendarValueLast(ulong &_change, MqlCalendarValue &result[],
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const string _code = NULL, const string _coin = NULL) override
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{
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return cache[].calendarValueLast(_change, result, _code, _coin);
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}
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virtual int calendarValueLastByEvent(ulong event_id, ulong &_change, MqlCalendarValue &result[]) override
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{
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return cache[].calendarValueLastByEvent(event_id, _change, result);
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}
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public:
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CalendarFilterCached(CalendarCache *_cache): cache(_cache),
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CalendarFilter(_cache.getContext(), _cache.getFrom(), _cache.getTo())
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{
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}
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virtual bool isLoaded() const override
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{
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// if cache is involved, return it's state as true/false
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return cache[].isLoaded();
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}
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};
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//+------------------------------------------------------------------+
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