001/**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019package org.apache.hadoop.hbase.client;
020
021import org.apache.hadoop.hbase.HColumnDescriptor;
022import org.apache.hadoop.hbase.HTableDescriptor;
023import org.apache.hadoop.hbase.client.TableDescriptorBuilder.ModifyableTableDescriptor;
024import org.apache.yetus.audience.InterfaceAudience;
025
026/**
027 * Read-only table descriptor.
028 */
029@Deprecated // deprecated for hbase 2.0, remove for hbase 3.0. see HTableDescriptor.
030@InterfaceAudience.Private
031public class ImmutableHTableDescriptor extends HTableDescriptor {
032
033  @Override
034  protected HColumnDescriptor toHColumnDescriptor(ColumnFamilyDescriptor desc) {
035    if (desc == null) {
036      return null;
037    } else if (desc instanceof HColumnDescriptor) {
038      return new ImmutableHColumnDescriptor((HColumnDescriptor) desc);
039    } else {
040      return new ImmutableHColumnDescriptor(desc);
041    }
042  }
043  /*
044   * Create an unmodifyable copy of an HTableDescriptor
045   * @param desc
046   */
047  public ImmutableHTableDescriptor(final HTableDescriptor desc) {
048    super(desc, false);
049  }
050
051  public ImmutableHTableDescriptor(final TableDescriptor desc) {
052    super(desc instanceof ModifyableTableDescriptor ?
053      (ModifyableTableDescriptor) desc : new ModifyableTableDescriptor(desc.getTableName(), desc));
054  }
055
056  @Override
057  protected ModifyableTableDescriptor getDelegateeForModification() {
058    throw new UnsupportedOperationException("HTableDescriptor is read-only");
059  }
060}