zerodds-java-omgdds 1.0.0-rc.1

Native Java DDS-PSM scaffolding (org.omg.dds.* package)
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  • Source code size: 100.5 kB This is the summed size of all the files inside the crates.io package for this release.
  • Documentation size: 241.91 kB This is the summed size of all files generated by rustdoc for all configured targets
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  • all releases: 10s Average build duration of successful builds in releases after 2024-10-23.
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zerodds-java-omgdds

Native Java DDS-PSM (org.omg.dds.*) — implementiert das OMG DDS Java PSM 1.0, die spec-definierte Java-API-Form. Teil von ZeroDDS. Safety-Klasse STANDARD.

OMG-DDS-Java-PSM 1.0 Spec-Audit (K15) abgeschlossen 2026-04-28: 156 done / 0 partial / 0 open / 15 n/a. Voll spec-konform.

Beziehung zur JNI-Bridge

Zwei orthogonale Java-Pfade:

  • zerodds-java-jni — JNI-Bridge ueber die Rust-Runtime. Nutzt zerodds-dcps direkt, idiomatischer Java-Wrapper ohne strikte Spec-Treue.
  • zerodds-java-omgdds — diese Crate. Native Java-Klassen die exakt dem org.omg.dds.*-PSM folgen. Drop-in fuer Anwendungen, die heute auf RTI Connext, OpenSplice oder Cyclone DDS Java-API laufen.

Beide Pfade nutzen unter der Haube den gleichen Wire-Stack (crates/rtps via JNI). Der Unterschied liegt nur in der Java-API-Form.

Build

# Maven-Build (Standard-Java):
mvn -f crates/java-omgdds/pom.xml package

# JAR landet in:
ls crates/java-omgdds/target/zerodds-java-omgdds-0.0.0.jar

Quickstart (OMG-PSM-Form)

import org.omg.dds.core.*;
import org.omg.dds.domain.*;
import org.omg.dds.pub.*;
import org.omg.dds.topic.*;

DomainParticipantFactory factory = DomainParticipantFactory.getInstance();
DomainParticipant dp = factory.createParticipant(0);

Topic<Pose> topic = dp.createTopic("Telemetry", Pose.class);
Publisher pub = dp.createPublisher();
DataWriter<Pose> writer = pub.createDataWriter(topic);

writer.write(new Pose("r1", 1.0, 2.0, 3.0));

Pose ist generiert via zerodds-idlc Robot.idl --java.

Struktur

crates/java-omgdds/
├── Cargo.toml          Workspace-Member, Build-Glue zur JNI-Schicht
├── src/lib.rs          Architektur-Doc + JNI-Hooks
├── src/main/java/      Java-Sources (Maven-Layout)
│   └── org/omg/dds/
│       ├── core/        Time, Duration, Status, Exception, Listener
│       ├── core/policy/ alle 21 QoS-Policies, immutable Builder
│       ├── domain/      DomainParticipantFactory, DomainParticipant
│       ├── topic/       Topic, ContentFilteredTopic, MultiTopic
│       ├── pub/         Publisher, DataWriter, PublisherListener
│       ├── sub/         Subscriber, DataReader, Sample, SampleSelector
│       ├── type/        TypeSupport, dynamic, builtin
│       └── rtps/        Konvertierungs-Helper (delegiert an Rust-Stack)
└── pom.xml             Maven Build

Documentation Trail

Fuer den User-Guide siehe Documentation Trail Station 05 → Java.

Spec-Referenzen

  • OMG DDS Java PSM 1.0
  • OMG DDS 1.4 §2.2 — DCPS
  • docs/spec-coverage/zerodds-java-psm-1.0.md — Per-Section-Audit
  • docs/architecture/05_java_jni_bridge.md — interne Bridge-Architektur