org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryHiveChar Maven / Gradle / Ivy

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/**
 * 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;

import org.apache.hadoop.hive.serde2.io.HiveCharWritable;
import org.apache.hadoop.hive.serde2.lazy.ByteArrayRef;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableHiveCharObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.CharTypeInfo;
import org.apache.hadoop.io.Text;

public class LazyBinaryHiveChar extends
    LazyBinaryPrimitive {

  protected int maxLength = -1;

  LazyBinaryHiveChar(WritableHiveCharObjectInspector oi) {
    super(oi);
    maxLength = ((CharTypeInfo)oi.getTypeInfo()).getLength();
    data = new HiveCharWritable();
  }

  LazyBinaryHiveChar(LazyBinaryHiveChar copy) {
    super(copy);
    maxLength = copy.maxLength;
    data = new HiveCharWritable(copy.data);
  }

  @Override
  public void init(ByteArrayRef bytes, int start, int length) {
    // re-use existing text member in char writable
    Text textValue = data.getTextValue();
    textValue.set(bytes.getData(), start, length);
    data.enforceMaxLength(maxLength);
  }

}