Java-engine¶

This plugin allows execution of Java code on streamed data.

Java API¶

The Java code can access the Object input data passed to the resource.

The Java code should define a function named 'process' that takes the Object input data and returns the output data. Code can be specific about output data type.

public class MyProc {
    public static String process(Object input) {
        return String.valueOf(input).toUpperCase();
    }
}

JAVAYAML

.configureResource(JavaResourceConfigBuilder.builder()
)

resource:
  java-engine:

Java dependency management¶

Add this declaration to your dependency management system to access the configuration DSL for this plugin in Java.

MavenGradle

<dependency>
    <groupId>org.voltdb</groupId>
    <artifactId>volt-stream-plugin-java-api</artifactId>
    <version>1.7.0</version>
</dependency>

implementation group: 'org.voltdb', name: 'volt-stream-plugin-java-api', version: '1.7.0'

JSON Schema¶

You can validate or explore the configuration using its JSON Schema.