build.xml

<?xml version="1.0" encoding="UTF-8"?>

<project name="hive-udaf-maxrow" default="default">
    <property name="build" location="build"/>
    <property name="dist"  location="dist"/>
    <property name="src"   location="src"/>

    <property environment="env"/>

    <property name="hadoop.home" location="${env.HADOOP_HOME}"/>
    <property name="hive.home"   location="${env.HIVE_HOME}"/>

    <description>
        Hive user-defined aggregate function, similar to max() -- but returns related columns too.
    </description>

    <path id="javac.classpath">
        <fileset dir="${hadoop.home}">
            <include name="*.jar"/>
            <include name="lib/*.jar"/>
        </fileset>
        <fileset dir="${hive.home}">
            <include name="*.jar"/>
            <include name="lib/*.jar"/>
        </fileset>
    </path>

    <target name="default" depends="jar" description="Build jar file by default"/>

    <target name="jar" depends="compile" description="Build jar file">
        <mkdir dir="${dist}"/>
        <jar jarfile="${dist}/hive-udaf-maxrow.jar" basedir="${build}"/>
    </target>

    <target name="compile" description="Compile Java source">
        <mkdir dir="${build}"/>
        <javac srcdir="${src}"
               destdir="${build}"
               classpathref="javac.classpath"
               debug="on"
               includeantruntime="false"
        />
    </target>

    <target name="clean" description="clean up">
        <delete dir="${build}"/>
        <delete dir="${dist}"/>
    </target>
</project>