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wickra/examples/java
kingchenc b31a9a3624 release: bump 0.8.1 -> 0.8.2 (#245)
Patch release shipping the R WebAssembly build fix (#244): `bindings/r/configure` builds the C ABI from source for `wasm32-unknown-emscripten`, so r-universe's webR build stops failing. Also carries the shared Go badge in `bindings/go/README.md`. Version bumped across all manual touchpoints via `bump_version.py` (incl. DESCRIPTION + csproj, which had drifted before).
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2026-06-10 01:57:10 +02:00

Wickra examples — Java

Runnable examples for the Wickra Java binding. Each example is a small main class that uses the org.wickra:wickra artifact and resolves the native library automatically (from target/release during local development, or the bundled per-platform library when packaged).

Build the native library and install the binding to your local Maven repo first, then run any example with the exec plugin:

cargo build -p wickra-c --release
mvn -f bindings/java install -DskipTests
mvn -f examples/java compile
mvn -f examples/java exec:exec -Dexec.mainClass=org.wickra.examples.Streaming

(The exec:exec goal forks a JVM with --enable-native-access=ALL-UNNAMED, the flag the FFM API needs.)

Example What it does Main class
streaming Feed a synthetic price series through SMA / EMA / RSI / MACD tick by tick. org.wickra.examples.Streaming
backtest Compute a basket of indicators over an OHLCV series and print a summary. org.wickra.examples.Backtest
multi_timeframe Resample a 1-minute series into 5m / 15m and print an indicator per timeframe. org.wickra.examples.MultiTimeframe
parallel_assets SMA(20) batch over a panel of assets, serial vs parallel streams, with speedup. org.wickra.examples.ParallelAssets
strategy_rsi_mean_reversion RSI(14) mean-reversion with a PnL / Sharpe / max-DD summary. org.wickra.examples.StrategyRsiMeanReversion
strategy_macd_adx MACD crossover entries gated by ADX(14) > 20. org.wickra.examples.StrategyMacdAdx
strategy_bollinger_squeeze Bollinger-squeeze breakout with an ATR(14) trailing stop. org.wickra.examples.StrategyBollingerSqueeze
fetch_btcusdt Download real BTCUSDT klines from the Binance REST API into a CSV. org.wickra.examples.FetchBtcusdt
live_binance Stream live Binance klines through EMA(20) over a WebSocket. org.wickra.examples.LiveBinance

fetch_btcusdt and live_binance require network access; the rest run offline on deterministic synthetic data. Shared helpers (synthetic data, CSV loader, equity summary) live in MarketData and Equity.