001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.client;
019
020import org.apache.hadoop.hbase.HColumnDescriptor;
021import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor;
022import org.apache.yetus.audience.InterfaceAudience;
023
024/**
025 * Read-only column descriptor.
026 */
027@Deprecated // deprecated for hbase 2.0, remove for hbase 3.0. see HColumnDescriptor.
028@InterfaceAudience.Private
029public class ImmutableHColumnDescriptor extends HColumnDescriptor {
030  /*
031   * Create an unmodifyable copy of an HColumnDescriptor n
032   */
033  ImmutableHColumnDescriptor(final HColumnDescriptor desc) {
034    super(desc, false);
035  }
036
037  public ImmutableHColumnDescriptor(final ColumnFamilyDescriptor desc) {
038    super(desc instanceof ModifyableColumnFamilyDescriptor
039      ? (ModifyableColumnFamilyDescriptor) desc
040      : new ModifyableColumnFamilyDescriptor(desc));
041  }
042
043  @Override
044  protected ModifyableColumnFamilyDescriptor getDelegateeForModification() {
045    throw new UnsupportedOperationException("HColumnDescriptor is read-only");
046  }
047}