content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.asterix.runtime.aggregates.serializable.std;
  
  import java.io.DataOutput;
  import java.io.IOException;
  
  import org.apache.asterix.om.functions.BuiltinFunctions;
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.asterix.runtime.exceptions.UnsupportedItemTypeException;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
  import org.apache.hyracks.api.context.IEvaluatorContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.exceptions.SourceLocation;
  import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
  
  public class SerializableLocalSqlSumAggregateFunction extends AbstractSerializableSumAggregateFunction {
  
      public SerializableLocalSqlSumAggregateFunction(IScalarEvaluatorFactory[] args, IEvaluatorContext context,
              SourceLocation sourceLoc) throws HyracksDataException {
          super(args, context, sourceLoc);
      }
  
      // Called for each incoming tuple
      @Override
      public void step(IFrameTupleReference tuple, byte[] state, int start, int len) throws HyracksDataException {
          super.step(tuple, state, start, len);
      }
  
      // Finish calculation
      @Override
      public void finish(byte[] state, int start, int len, DataOutput out) throws HyracksDataException {
          super.finishPartial(state, start, len, out);
      }
  
      // Is skip
      @Override
      protected boolean skipStep(byte[] state, int start) {
          return false;
      }
  
      // Handle NULL step
      @Override
      protected void processNull(byte[] state, int start) {
          // Do nothing
      }
  
      // Handle SYSTEM_NULL step
      @Override
      protected void processSystemNull() throws HyracksDataException {
          throw new UnsupportedItemTypeException(sourceLoc, BuiltinFunctions.SUM,
                  ATypeTag.SERIALIZED_SYSTEM_NULL_TYPE_TAG);
      }
  
      // Handle NULL finish
      @Override
      protected void finishNull(DataOutput out) throws IOException {
          out.writeByte(ATypeTag.SERIALIZED_NULL_TYPE_TAG);
      }
  
      // Handle SYSTEM_NULL finish
      @Override
      protected void finishSystemNull(DataOutput out) throws IOException {
          out.writeByte(ATypeTag.SERIALIZED_SYSTEM_NULL_TYPE_TAG);
      }
  }
  