This example project demonstrates how to use ANTLR-based expression parser and how to filter collection of entries using SQL-like predicate.
List<Trade> trades = new ArrayList<>();
trades.add(new Trade("New", "Open", "42", "CLIENT42", "Option", 42.0, "EURUSD", 1.0, 11.0, 1.1, 2.1));
trades.add(new Trade("New", "Open", "43", "CLIENT42", "Option", 43.0, "EURUSD", 2.0, 12.0, 1.2, 2.2));
trades.add(new Trade("New", "Closed", "44", "CLIENT42", "Option", 44.0, "EURUSD", 3.0, 13.0, 1.3, 2.3));
trades.add(new Trade("New", "Closed", "45", "CLIENT42", "Option", 45.0, "EURUSD", 4.0, 14.0, 1.4, 2.4));
trades.add(new Trade("New", "Closed", "46", "CLIENT42", "Option", 46.0, "EURUSD", 5.0, 15.0, 1.5, 2.5));
trades.stream()
.filter(TradeFilterFactory.parseExpression("spot >= 2.2 and (strike < 1.3 or strike > 1.4)"))
.forEach(trade -> System.out.println("Trade " + trade.getTradeId()));
The result of this code execution will be:
Trade 43
Trade 46
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