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.yetus.audience.InterfaceAudience;
022import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor;
023import org.apache.hadoop.hbase.client.TableDescriptorBuilder.ModifyableTableDescriptor;
024import org.apache.hadoop.hbase.HColumnDescriptor;
025import org.apache.hadoop.hbase.HTableDescriptor;
026
027/**
028 * Read-only table descriptor.
029 */
030@Deprecated // deprecated for hbase 2.0, remove for hbase 3.0. see HTableDescriptor.
031@InterfaceAudience.Private
032public class ImmutableHTableDescriptor extends HTableDescriptor {
033
034  @Override
035  protected HColumnDescriptor toHColumnDescriptor(ColumnFamilyDescriptor desc) {
036    if (desc == null) {
037      return null;
038    } else if (desc instanceof HColumnDescriptor) {
039      return new ImmutableHColumnDescriptor((HColumnDescriptor) desc);
040    } else {
041      return new ImmutableHColumnDescriptor(desc);
042    }
043  }
044  /*
045   * Create an unmodifyable copy of an HTableDescriptor
046   * @param desc
047   */
048  public ImmutableHTableDescriptor(final HTableDescriptor desc) {
049    super(desc, false);
050  }
051
052  public ImmutableHTableDescriptor(final TableDescriptor desc) {
053    super(desc instanceof ModifyableTableDescriptor ?
054      (ModifyableTableDescriptor) desc : new ModifyableTableDescriptor(desc.getTableName(), desc));
055  }
056
057  @Override
058  protected ModifyableTableDescriptor getDelegateeForModification() {
059    throw new UnsupportedOperationException("HTableDescriptor is read-only");
060  }
061}