Package org.apache.hadoop.hive.ql.udf.generic

Examples of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs.initialize()

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  public void testInt() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new IntWritable(107));
    DeferredObject[] args = {valueObj};
    IntWritable output = (IntWritable) udf.evaluate(args);

    assertEquals("abs() test for INT failed ", 107, output.get());
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  public void testLong() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableLongObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new LongWritable(107L));
    DeferredObject[] args = {valueObj};
    LongWritable output = (LongWritable) udf.evaluate(args);

    assertEquals("abs() test for LONG failed ", 107, output.get());
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  public void testDouble() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableDoubleObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new DoubleWritable(107.78));
    DeferredObject[] args = {valueObj};
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);

    assertEquals("abs() test for Double failed ", 107.78, output.get());
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  public void testFloat() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableFloatObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new FloatWritable(107.78f));
    DeferredObject[] args = {valueObj};
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);

    // Make sure flow and double equality compare works
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  public void testText() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new Text("123.45"));
    DeferredObject[] args = {valueObj};
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);

    assertEquals("abs() test for String failed ", "123.45", output.toString());
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  public void testHiveDecimal() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableHiveDecimalObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create(
        "107.123456789")));
    DeferredObject[] args = {valueObj};
    HiveDecimalWritable output = (HiveDecimalWritable) udf.evaluate(args);
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