Package org.apache.hadoop.hive.serde2.lazybinary.objectinspector

Source Code of org.apache.hadoop.hive.serde2.lazybinary.objectinspector.LazyBinaryUnionObjectInspector

/**
* 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.hadoop.hive.serde2.lazybinary.objectinspector;

import org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryUnion;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.UnionObject;

import java.util.List;

/**
* ObjectInspector for LazyBinaryUnion.
*
* @see org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryUnion
*/
public class LazyBinaryUnionObjectInspector extends
    StandardUnionObjectInspector {

  protected LazyBinaryUnionObjectInspector() {
    super();
  }
  protected LazyBinaryUnionObjectInspector(List<ObjectInspector> unionFieldObjectInspectors) {
    super(unionFieldObjectInspectors);
  }

  /**
   * Return the tag of the object.
   */
  public byte getTag(Object o) {
    if (o == null) {
      return -1;
    }
    LazyBinaryUnion lazyBinaryUnion = (LazyBinaryUnion) o;
    return lazyBinaryUnion.getTag();
  }

  /**
   * Return the field based on the tag value associated with the Object.
   */
  public Object getField(Object o) {
    if (o == null) {
      return null;
    }
    LazyBinaryUnion lazyBinaryUnion = (LazyBinaryUnion) o;
    return lazyBinaryUnion.getField();
  }
}
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