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