src/main/java/org/apache/datasketches/hive/cpc/UnionSketchUDAF.java [58:96]:
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@SuppressWarnings("deprecation")
public class UnionSketchUDAF extends AbstractGenericUDAFResolver {

  /**
   * Perform argument count check and argument type checking, returns an
   * appropriate evaluator to perform based on input type (which should always
   * be BINARY sketch). Also check lgK and seed parameters if they are passed in.
   *
   * @see org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
   * #getEvaluator(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo)
   *
   * @param info The parameter info to validate
   * @return The GenericUDAFEvaluator to use to compute the function.
   */
  @SuppressWarnings("javadoc")
  @Override
  public GenericUDAFEvaluator getEvaluator(final GenericUDAFParameterInfo info) throws SemanticException {
    final ObjectInspector[] inspectors = info.getParameterObjectInspectors();

    if (inspectors.length < 1) {
      throw new UDFArgumentException("Please specify at least 1 argument");
    }

    if (inspectors.length > 3) {
      throw new UDFArgumentTypeException(inspectors.length - 1, "Please specify no more than 3 arguments");
    }

    ObjectInspectorValidator.validateGivenPrimitiveCategory(inspectors[0], 0, PrimitiveCategory.BINARY);

    // Validate second argument if present
    if (inspectors.length > 1) {
      ObjectInspectorValidator.validateIntegralParameter(inspectors[1], 1);
      if (!ObjectInspectorUtils.isConstantObjectInspector(inspectors[1])) {
        throw new UDFArgumentTypeException(1, "The second argument must be a constant");
      }
    }

    // Validate third argument if present
    if (inspectors.length > 2) {
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src/main/java/org/apache/datasketches/hive/hll/UnionSketchUDAF.java [58:96]:
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@SuppressWarnings("deprecation")
public class UnionSketchUDAF extends AbstractGenericUDAFResolver {

  /**
   * Perform argument count check and argument type checking, returns an
   * appropriate evaluator to perform based on input type (which should always
   * be BINARY sketch). Also check lgK and target HLL type parameters if they are passed in.
   *
   * @see org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
   * #getEvaluator(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo)
   *
   * @param info The parameter info to validate
   * @return The GenericUDAFEvaluator to use to compute the function.
   */
  @SuppressWarnings("javadoc")
  @Override
  public GenericUDAFEvaluator getEvaluator(final GenericUDAFParameterInfo info) throws SemanticException {
    final ObjectInspector[] inspectors = info.getParameterObjectInspectors();

    if (inspectors.length < 1) {
      throw new UDFArgumentException("Please specify at least 1 argument");
    }

    if (inspectors.length > 3) {
      throw new UDFArgumentTypeException(inspectors.length - 1, "Please specify no more than 3 arguments");
    }

    ObjectInspectorValidator.validateGivenPrimitiveCategory(inspectors[0], 0, PrimitiveCategory.BINARY);

    // Validate second argument if present
    if (inspectors.length > 1) {
      ObjectInspectorValidator.validateIntegralParameter(inspectors[1], 1);
      if (!ObjectInspectorUtils.isConstantObjectInspector(inspectors[1])) {
        throw new UDFArgumentTypeException(1, "The second argument must be a constant");
      }
    }

    // Validate third argument if present
    if (inspectors.length > 2) {
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