JavaUdfPlugin.java

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package org.apache.doris.udf;

import org.apache.doris.jni.spi.DorisPlugin;
import org.apache.doris.jni.spi.UdfExecutorFactory;

import java.util.Arrays;

/**
 * Entry point of the {@code java-udf} plugin, found through
 * {@code META-INF/services/org.apache.doris.jni.spi.DorisPlugin}.
 *
 * <p>It provides two executor factories, not three: a table function runs the same per-row
 * {@code evaluate} as a scalar function - the serialized parameters carry the flag that makes its
 * return type an array - so both are built by {@code scalar}. Aggregate functions have a different
 * method shape and get their own.
 */
public class JavaUdfPlugin implements DorisPlugin {

    @Override
    public Iterable<UdfExecutorFactory> getUdfExecutorFactories() {
        return Arrays.asList(new ScalarUdfExecutorFactory(), new AggregateUdfExecutorFactory());
    }
}