Files
wickra/examples/java
kingchenc ff268500ef release: bump 0.9.4 -> 0.9.5 (#329)
Maintenance release. The library API and every indicator are unchanged from
`0.9.4`; the only change that ships to users is the R package's build script.

### What's in 0.9.5
- **R package: retry the C ABI download** (`bindings/r/configure[.win]`). A freshly
  cut release can briefly 404 while assets propagate; the download is now retried
  with a ~2 min backoff instead of failing with `cannot open URL … 404`. Landed in
  #328; ships to r-universe / source installs with this release.
- The rest of #328 — CI/release-pipeline hardening (R/NuGet dependency caching,
  job timeouts 20→30 / release 45, network-install retries, wasm-publish cache) —
  is infrastructure and does not affect the published artifacts, but makes this
  release's own pipeline more robust.

Pure version-string bump on top — `bump_version.py` touched 19 files (Cargo +
Lock, pyproject, node package.json/locks + 6 platform stubs, pom + csproj +
DESCRIPTION, SECURITY, CHANGELOG `[0.9.5]` + compare URLs). `cargo fmt` clean.

Tag/publish waits for explicit GO (irreversible publish to crates.io / PyPI /
npm / NuGet / Maven / Go / r-universe).
2026-06-17 23:55:18 +02:00
..
2026-06-17 23:55:18 +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.