/*
 * 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.hbase;

import java.util.Map;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.MobCompactPartitionPolicy;
import org.apache.hadoop.hbase.exceptions.DeserializationException;
import org.apache.hadoop.hbase.exceptions.HBaseException;
import org.apache.hadoop.hbase.io.compress.Compression;
import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.PrettyPrinter.Unit;
import org.apache.yetus.audience.InterfaceAudience;

/**
 * An HColumnDescriptor contains information about a column family such as the number of versions,
 * compression settings, etc. It is used as input when creating a table or adding a column.
 */
@InterfaceAudience.Public
@Deprecated // remove it in 3.0
public class HColumnDescriptor implements ColumnFamilyDescriptor, Comparable<HColumnDescriptor> {
  public static final String IN_MEMORY_COMPACTION =
    ColumnFamilyDescriptorBuilder.IN_MEMORY_COMPACTION;
  public static final String COMPRESSION = ColumnFamilyDescriptorBuilder.COMPRESSION;
  public static final String COMPRESSION_COMPACT =
    ColumnFamilyDescriptorBuilder.COMPRESSION_COMPACT;
  public static final String COMPRESSION_COMPACT_MAJOR =
    ColumnFamilyDescriptorBuilder.COMPRESSION_COMPACT_MAJOR;
  public static final String COMPRESSION_COMPACT_MINOR =
    ColumnFamilyDescriptorBuilder.COMPRESSION_COMPACT_MINOR;
  public static final String ENCODE_ON_DISK = "ENCODE_ON_DISK";
  public static final String DATA_BLOCK_ENCODING =
    ColumnFamilyDescriptorBuilder.DATA_BLOCK_ENCODING;
  public static final String BLOCKCACHE = ColumnFamilyDescriptorBuilder.BLOCKCACHE;
  public static final String CACHE_DATA_ON_WRITE =
    ColumnFamilyDescriptorBuilder.CACHE_DATA_ON_WRITE;
  public static final String CACHE_INDEX_ON_WRITE =
    ColumnFamilyDescriptorBuilder.CACHE_INDEX_ON_WRITE;
  public static final String CACHE_BLOOMS_ON_WRITE =
    ColumnFamilyDescriptorBuilder.CACHE_BLOOMS_ON_WRITE;
  public static final String EVICT_BLOCKS_ON_CLOSE =
    ColumnFamilyDescriptorBuilder.EVICT_BLOCKS_ON_CLOSE;
  public static final String CACHE_DATA_IN_L1 = "CACHE_DATA_IN_L1";
  public static final String PREFETCH_BLOCKS_ON_OPEN =
    ColumnFamilyDescriptorBuilder.PREFETCH_BLOCKS_ON_OPEN;
  public static final String BLOCKSIZE = ColumnFamilyDescriptorBuilder.BLOCKSIZE;
  public static final String LENGTH = "LENGTH";
  public static final String TTL = ColumnFamilyDescriptorBuilder.TTL;
  public static final String BLOOMFILTER = ColumnFamilyDescriptorBuilder.BLOOMFILTER;
  public static final String FOREVER = "FOREVER";
  public static final String REPLICATION_SCOPE = ColumnFamilyDescriptorBuilder.REPLICATION_SCOPE;
  public static final byte[] REPLICATION_SCOPE_BYTES = Bytes.toBytes(REPLICATION_SCOPE);
  public static final String MIN_VERSIONS = ColumnFamilyDescriptorBuilder.MIN_VERSIONS;
  public static final String KEEP_DELETED_CELLS = ColumnFamilyDescriptorBuilder.KEEP_DELETED_CELLS;
  public static final String COMPRESS_TAGS = ColumnFamilyDescriptorBuilder.COMPRESS_TAGS;
  public static final String ENCRYPTION = ColumnFamilyDescriptorBuilder.ENCRYPTION;
  public static final String ENCRYPTION_KEY = ColumnFamilyDescriptorBuilder.ENCRYPTION_KEY;
  public static final String IS_MOB = ColumnFamilyDescriptorBuilder.IS_MOB;
  public static final byte[] IS_MOB_BYTES = Bytes.toBytes(IS_MOB);
  public static final String MOB_THRESHOLD = ColumnFamilyDescriptorBuilder.MOB_THRESHOLD;
  public static final byte[] MOB_THRESHOLD_BYTES = Bytes.toBytes(MOB_THRESHOLD);
  public static final long DEFAULT_MOB_THRESHOLD =
    ColumnFamilyDescriptorBuilder.DEFAULT_MOB_THRESHOLD;
  public static final String MOB_COMPACT_PARTITION_POLICY =
    ColumnFamilyDescriptorBuilder.MOB_COMPACT_PARTITION_POLICY;
  public static final byte[] MOB_COMPACT_PARTITION_POLICY_BYTES =
    Bytes.toBytes(MOB_COMPACT_PARTITION_POLICY);
  public static final MobCompactPartitionPolicy DEFAULT_MOB_COMPACT_PARTITION_POLICY =
    ColumnFamilyDescriptorBuilder.DEFAULT_MOB_COMPACT_PARTITION_POLICY;
  public static final String DFS_REPLICATION = ColumnFamilyDescriptorBuilder.DFS_REPLICATION;
  public static final short DEFAULT_DFS_REPLICATION =
    ColumnFamilyDescriptorBuilder.DEFAULT_DFS_REPLICATION;
  public static final String STORAGE_POLICY = ColumnFamilyDescriptorBuilder.STORAGE_POLICY;
  public static final String DEFAULT_COMPRESSION =
    ColumnFamilyDescriptorBuilder.DEFAULT_COMPRESSION.name();
  public static final boolean DEFAULT_ENCODE_ON_DISK = true;
  public static final String DEFAULT_DATA_BLOCK_ENCODING =
    ColumnFamilyDescriptorBuilder.DEFAULT_DATA_BLOCK_ENCODING.name();
  public static final int DEFAULT_VERSIONS = ColumnFamilyDescriptorBuilder.DEFAULT_MAX_VERSIONS;
  public static final int DEFAULT_MIN_VERSIONS = ColumnFamilyDescriptorBuilder.DEFAULT_MIN_VERSIONS;
  public static final boolean DEFAULT_IN_MEMORY = ColumnFamilyDescriptorBuilder.DEFAULT_IN_MEMORY;
  public static final KeepDeletedCells DEFAULT_KEEP_DELETED =
    ColumnFamilyDescriptorBuilder.DEFAULT_KEEP_DELETED;
  public static final boolean DEFAULT_BLOCKCACHE = ColumnFamilyDescriptorBuilder.DEFAULT_BLOCKCACHE;
  public static final boolean DEFAULT_CACHE_DATA_ON_WRITE =
    ColumnFamilyDescriptorBuilder.DEFAULT_CACHE_DATA_ON_WRITE;
  public static final boolean DEFAULT_CACHE_DATA_IN_L1 = false;
  public static final boolean DEFAULT_CACHE_INDEX_ON_WRITE =
    ColumnFamilyDescriptorBuilder.DEFAULT_CACHE_INDEX_ON_WRITE;
  public static final int DEFAULT_BLOCKSIZE = ColumnFamilyDescriptorBuilder.DEFAULT_BLOCKSIZE;
  public static final String DEFAULT_BLOOMFILTER =
    ColumnFamilyDescriptorBuilder.DEFAULT_BLOOMFILTER.name();
  public static final boolean DEFAULT_CACHE_BLOOMS_ON_WRITE =
    ColumnFamilyDescriptorBuilder.DEFAULT_CACHE_BLOOMS_ON_WRITE;
  public static final int DEFAULT_TTL = ColumnFamilyDescriptorBuilder.DEFAULT_TTL;
  public static final int DEFAULT_REPLICATION_SCOPE =
    ColumnFamilyDescriptorBuilder.DEFAULT_REPLICATION_SCOPE;
  public static final boolean DEFAULT_EVICT_BLOCKS_ON_CLOSE =
    ColumnFamilyDescriptorBuilder.DEFAULT_EVICT_BLOCKS_ON_CLOSE;
  public static final boolean DEFAULT_COMPRESS_TAGS =
    ColumnFamilyDescriptorBuilder.DEFAULT_COMPRESS_TAGS;
  public static final boolean DEFAULT_PREFETCH_BLOCKS_ON_OPEN =
    ColumnFamilyDescriptorBuilder.DEFAULT_PREFETCH_BLOCKS_ON_OPEN;
  public static final String NEW_VERSION_BEHAVIOR =
    ColumnFamilyDescriptorBuilder.NEW_VERSION_BEHAVIOR;
  public static final boolean DEFAULT_NEW_VERSION_BEHAVIOR =
    ColumnFamilyDescriptorBuilder.DEFAULT_NEW_VERSION_BEHAVIOR;
  protected final ModifyableColumnFamilyDescriptor delegatee;

  /**
   * Construct a column descriptor specifying only the family name The other attributes are
   * defaulted.
   * @param familyName Column family name. Must be 'printable' -- digit or letter -- and may not
   *                   contain a <code>:</code>
   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
   *             (<a href="https://issues.apache.org/jira/browse/HBASE-18433">HBASE-18433</a>). Use
   *             {@link ColumnFamilyDescriptorBuilder#of(String)}.
   */
  @Deprecated
  public HColumnDescriptor(final String familyName) {
    this(Bytes.toBytes(familyName));
  }

  /**
   * Construct a column descriptor specifying only the family name The other attributes are
   * defaulted.
   * @param familyName Column family name. Must be 'printable' -- digit or letter -- and may not
   *                   contain a <code>:</code>
   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
   *             (<a href="https://issues.apache.org/jira/browse/HBASE-18433">HBASE-18433</a>). Use
   *             {@link ColumnFamilyDescriptorBuilder#of(byte[])}.
   */
  @Deprecated
  public HColumnDescriptor(final byte[] familyName) {
    this(new ModifyableColumnFamilyDescriptor(familyName));
  }

  /**
   * Constructor. Makes a deep copy of the supplied descriptor. Can make a modifiable descriptor
   * from an UnmodifyableHColumnDescriptor.
   * @param desc The descriptor.
   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
   *             (<a href="https://issues.apache.org/jira/browse/HBASE-18433">HBASE-18433</a>). Use
   *             {@link ColumnFamilyDescriptorBuilder#copy(ColumnFamilyDescriptor)}.
   */
  @Deprecated
  public HColumnDescriptor(HColumnDescriptor desc) {
    this(desc, true);
  }

  protected HColumnDescriptor(HColumnDescriptor desc, boolean deepClone) {
    this(deepClone ? new ModifyableColumnFamilyDescriptor(desc) : desc.delegatee);
  }

  protected HColumnDescriptor(ModifyableColumnFamilyDescriptor delegate) {
    this.delegatee = delegate;
  }

  /**
   * Check if a given family name is allowed.
   * @param b Family name.
   * @return <code>b</code>
   * @throws IllegalArgumentException If not null and not a legitimate family name: i.e. 'printable'
   *                                  and ends in a ':' (Null passes are allowed because
   *                                  <code>b</code> can be null when deserializing). Cannot start
   *                                  with a '.' either. Also Family can not be an empty value or
   *                                  equal "recovered.edits".
   * @deprecated since 2.0.0 and will be removed in 3.0.0. Use
   *             {@link ColumnFamilyDescriptorBuilder#isLegalColumnFamilyName(byte[])} instead.
   * @see ColumnFamilyDescriptorBuilder#isLegalColumnFamilyName(byte[])
   * @see <a href="https://issues.apache.org/jira/browse/HBASE-18008">HBASE-18008</a>
   */
  @Deprecated
  public static byte[] isLegalFamilyName(final byte[] b) {
    return ColumnFamilyDescriptorBuilder.isLegalColumnFamilyName(b);
  }

  /** Returns Name of this column family */
  @Override
  public byte[] getName() {
    return delegatee.getName();
  }

  /** Returns The name string of this column family */
  @Override
  public String getNameAsString() {
    return delegatee.getNameAsString();
  }

  @Override
  public byte[] getValue(byte[] key) {
    return delegatee.getValue(key);
  }

  @Override
  public String getValue(String key) {
    byte[] value = getValue(Bytes.toBytes(key));
    return value == null ? null : Bytes.toString(value);
  }

  @Override
  public Map<Bytes, Bytes> getValues() {
    return delegatee.getValues();
  }

  public HColumnDescriptor setValue(byte[] key, byte[] value) {
    getDelegateeForModification().setValue(key, value);
    return this;
  }

  public void remove(final byte[] key) {
    getDelegateeForModification().removeValue(new Bytes(key));
  }

  public HColumnDescriptor setValue(String key, String value) {
    getDelegateeForModification().setValue(key, value);
    return this;
  }

  /**
   * Returns compression type being used for the column family
   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
   *             (<a href="https://issues.apache.org/jira/browse/HBASE-13655">HBASE-13655</a>). Use
   *             {@link #getCompressionType()}.
   */
  @Deprecated
  public Compression.Algorithm getCompression() {
    return getCompressionType();
  }

  /**
   * Returns compression type being used for the column family for major compaction
   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
   *             (<a href="https://issues.apache.org/jira/browse/HBASE-13655">HBASE-13655</a>). Use
   *             {@link #getCompactionCompressionType()}.
   */
  @Deprecated
  public Compression.Algorithm getCompactionCompression() {
    return getCompactionCompressionType();
  }

  @Override
  public int getMaxVersions() {
    return delegatee.getMaxVersions();
  }

  /**
   * Set maximum versions to keep
   * @param value maximum number of versions
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setMaxVersions(int value) {
    getDelegateeForModification().setMaxVersions(value);
    return this;
  }

  /**
   * Set minimum and maximum versions to keep
   * @param minVersions minimal number of versions
   * @param maxVersions maximum number of versions
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setVersions(int minVersions, int maxVersions) {
    if (minVersions <= 0) {
      // TODO: Allow minVersion and maxVersion of 0 to be the way you say "Keep all versions".
      // Until there is support, consider 0 or < 0 -- a configuration error.
      throw new IllegalArgumentException("Minimum versions must be positive");
    }

    if (maxVersions < minVersions) {
      throw new IllegalArgumentException(
        "Unable to set MaxVersion to " + maxVersions + " and set MinVersion to " + minVersions
          + ", as maximum versions must be >= minimum versions.");
    }
    setMinVersions(minVersions);
    setMaxVersions(maxVersions);
    return this;
  }

  @Override
  public int getBlocksize() {
    return delegatee.getBlocksize();
  }

  /**
   * Set block size to use when writing
   * @param value Blocksize to use when writing out storefiles/hfiles on this column family.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setBlocksize(int value) {
    getDelegateeForModification().setBlocksize(value);
    return this;
  }

  public HColumnDescriptor setBlocksize(String value) throws HBaseException {
    getDelegateeForModification().setBlocksize(value);
    return this;
  }

  @Override
  public Compression.Algorithm getCompressionType() {
    return delegatee.getCompressionType();
  }

  /**
   * Compression types supported in hbase. LZO is not bundled as part of the hbase distribution. See
   * <a href="http://wiki.apache.org/hadoop/UsingLzoCompression">LZO Compression</a> for how to
   * enable it.
   * @param value Compression type setting.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setCompressionType(Compression.Algorithm value) {
    getDelegateeForModification().setCompressionType(value);
    return this;
  }

  @Override
  public DataBlockEncoding getDataBlockEncoding() {
    return delegatee.getDataBlockEncoding();
  }

  /**
   * Set data block encoding algorithm used in block cache.
   * @param value What kind of data block encoding will be used.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setDataBlockEncoding(DataBlockEncoding value) {
    getDelegateeForModification().setDataBlockEncoding(value);
    return this;
  }

  /**
   * Set whether the tags should be compressed along with DataBlockEncoding. When no
   * DataBlockEncoding is been used, this is having no effect. n * @return this (for chained
   * invocation)
   */
  public HColumnDescriptor setCompressTags(boolean value) {
    getDelegateeForModification().setCompressTags(value);
    return this;
  }

  @Override
  public boolean isCompressTags() {
    return delegatee.isCompressTags();
  }

  @Override
  public Compression.Algorithm getCompactionCompressionType() {
    return delegatee.getCompactionCompressionType();
  }

  @Override
  public Compression.Algorithm getMajorCompactionCompressionType() {
    return delegatee.getMajorCompactionCompressionType();
  }

  @Override
  public Compression.Algorithm getMinorCompactionCompressionType() {
    return delegatee.getMinorCompactionCompressionType();
  }

  /**
   * Compression types supported in hbase. LZO is not bundled as part of the hbase distribution. See
   * <a href="http://wiki.apache.org/hadoop/UsingLzoCompression">LZO Compression</a> for how to
   * enable it.
   * @param value Compression type setting.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setCompactionCompressionType(Compression.Algorithm value) {
    getDelegateeForModification().setCompactionCompressionType(value);
    return this;
  }

  public HColumnDescriptor setMajorCompactionCompressionType(Compression.Algorithm value) {
    getDelegateeForModification().setMajorCompactionCompressionType(value);
    return this;
  }

  public HColumnDescriptor setMinorCompactionCompressionType(Compression.Algorithm value) {
    getDelegateeForModification().setMinorCompactionCompressionType(value);
    return this;
  }

  @Override
  public boolean isInMemory() {
    return delegatee.isInMemory();
  }

  /**
   * Set or clear the in memory flag.
   * @param value True if we are to favor keeping all values for this column family in the
   *              HRegionServer cache
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setInMemory(boolean value) {
    getDelegateeForModification().setInMemory(value);
    return this;
  }

  @Override
  public MemoryCompactionPolicy getInMemoryCompaction() {
    return delegatee.getInMemoryCompaction();
  }

  /**
   * Set the in memory compaction policy.
   * @param value the prefered in-memory compaction policy for this column family
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setInMemoryCompaction(MemoryCompactionPolicy value) {
    getDelegateeForModification().setInMemoryCompaction(value);
    return this;
  }

  @Override
  public KeepDeletedCells getKeepDeletedCells() {
    return delegatee.getKeepDeletedCells();
  }

  /**
   * Set the keep deleted cells policy.
   * @param value True if deleted rows should not be collected immediately.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setKeepDeletedCells(KeepDeletedCells value) {
    getDelegateeForModification().setKeepDeletedCells(value);
    return this;
  }

  /**
   * By default, HBase only consider timestamp in versions. So a previous Delete with higher ts will
   * mask a later Put with lower ts. Set this to true to enable new semantics of versions. We will
   * also consider mvcc in versions. See HBASE-15968 for details.
   */
  @Override
  public boolean isNewVersionBehavior() {
    return delegatee.isNewVersionBehavior();
  }

  public HColumnDescriptor setNewVersionBehavior(boolean newVersionBehavior) {
    getDelegateeForModification().setNewVersionBehavior(newVersionBehavior);
    return this;
  }

  @Override
  public int getTimeToLive() {
    return delegatee.getTimeToLive();
  }

  /**
   * Set the time to live of cell contents
   * @param value Time-to-live of cell contents, in seconds.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setTimeToLive(int value) {
    getDelegateeForModification().setTimeToLive(value);
    return this;
  }

  /**
   * Set the time to live of cell contents
   * @param value Time to live of cell contents, in human readable format
   * @see org.apache.hadoop.hbase.util.PrettyPrinter#format(String, Unit)
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setTimeToLive(String value) throws HBaseException {
    getDelegateeForModification().setTimeToLive(value);
    return this;
  }

  @Override
  public int getMinVersions() {
    return delegatee.getMinVersions();
  }

  /**
   * Set the minimum number of versions to keep.
   * @param value The minimum number of versions to keep. (used when timeToLive is set)
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setMinVersions(int value) {
    getDelegateeForModification().setMinVersions(value);
    return this;
  }

  @Override
  public boolean isBlockCacheEnabled() {
    return delegatee.isBlockCacheEnabled();
  }

  /**
   * Set or clear the block cache enabled flag.
   * @param value True if hfile DATA type blocks should be cached (We always cache INDEX and BLOOM
   *              blocks; you cannot turn this off).
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setBlockCacheEnabled(boolean value) {
    getDelegateeForModification().setBlockCacheEnabled(value);
    return this;
  }

  @Override
  public BloomType getBloomFilterType() {
    return delegatee.getBloomFilterType();
  }

  /**
   * Set the bloom filter type.
   * @param value bloom filter type
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setBloomFilterType(final BloomType value) {
    getDelegateeForModification().setBloomFilterType(value);
    return this;
  }

  @Override
  public int getScope() {
    return delegatee.getScope();
  }

  public HColumnDescriptor setScope(int value) {
    getDelegateeForModification().setScope(value);
    return this;
  }

  @Override
  public boolean isCacheDataOnWrite() {
    return delegatee.isCacheDataOnWrite();
  }

  /**
   * Set or clear the cache data on write flag.
   * @param value true if we should cache data blocks on write
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setCacheDataOnWrite(boolean value) {
    getDelegateeForModification().setCacheDataOnWrite(value);
    return this;
  }

  /**
   * Set or clear the cache in L1 flag. This is a noop call from HBase 2.0 onwards
   * @return this (for chained invocation)
   * @deprecated Since 2.0 and will be removed in 3.0 with out any replacement. Caching data in on
   *             heap Cache, when there are both on heap LRU Cache and Bucket Cache will no longer
   *             be supported from 2.0.
   */
  @Deprecated
  public HColumnDescriptor setCacheDataInL1(boolean value) {
    return this;
  }

  @Override
  public boolean isCacheIndexesOnWrite() {
    return delegatee.isCacheIndexesOnWrite();
  }

  /**
   * Set or clear the cache indexes on write flag.
   * @param value true if we should cache index blocks on write
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setCacheIndexesOnWrite(boolean value) {
    getDelegateeForModification().setCacheIndexesOnWrite(value);
    return this;
  }

  @Override
  public boolean isCacheBloomsOnWrite() {
    return delegatee.isCacheBloomsOnWrite();
  }

  /**
   * Set or clear the cache bloom filters on write flag.
   * @param value true if we should cache bloomfilter blocks on write
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setCacheBloomsOnWrite(boolean value) {
    getDelegateeForModification().setCacheBloomsOnWrite(value);
    return this;
  }

  @Override
  public boolean isEvictBlocksOnClose() {
    return delegatee.isEvictBlocksOnClose();
  }

  /**
   * Set or clear the evict bloom filters on close flag.
   * @param value true if we should evict cached blocks from the blockcache on close
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setEvictBlocksOnClose(boolean value) {
    getDelegateeForModification().setEvictBlocksOnClose(value);
    return this;
  }

  @Override
  public boolean isPrefetchBlocksOnOpen() {
    return delegatee.isPrefetchBlocksOnOpen();
  }

  /**
   * Set or clear the prefetch on open flag.
   * @param value true if we should prefetch blocks into the blockcache on open
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setPrefetchBlocksOnOpen(boolean value) {
    getDelegateeForModification().setPrefetchBlocksOnOpen(value);
    return this;
  }

  @Override
  public String toString() {
    return delegatee.toString();
  }

  /** Returns Column family descriptor with only the customized attributes. */
  @Override
  public String toStringCustomizedValues() {
    return delegatee.toStringCustomizedValues();
  }

  public static Unit getUnit(String key) {
    return ColumnFamilyDescriptorBuilder.getUnit(key);
  }

  public static Map<String, String> getDefaultValues() {
    return ColumnFamilyDescriptorBuilder.getDefaultValues();
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj instanceof HColumnDescriptor) {
      return delegatee.equals(((HColumnDescriptor) obj).delegatee);
    }
    return false;
  }

  @Override
  public int hashCode() {
    return delegatee.hashCode();
  }

  @Override
  public int compareTo(HColumnDescriptor other) {
    return COMPARATOR.compare(this, other);
  }

  /**
   * Returns This instance serialized with pb with pb magic prefix
   * @see #parseFrom(byte[])
   */
  public byte[] toByteArray() {
    return ColumnFamilyDescriptorBuilder.toByteArray(delegatee);
  }

  /**
   * Parse a serialized representation of a {@link HColumnDescriptor}
   * @param bytes A pb serialized {@link HColumnDescriptor} instance with pb magic prefix
   * @return An instance of {@link HColumnDescriptor} made from <code>bytes</code> n * @see
   *         #toByteArray()
   */
  public static HColumnDescriptor parseFrom(final byte[] bytes) throws DeserializationException {
    ColumnFamilyDescriptor desc = ColumnFamilyDescriptorBuilder.parseFrom(bytes);
    if (desc instanceof ModifyableColumnFamilyDescriptor) {
      return new HColumnDescriptor((ModifyableColumnFamilyDescriptor) desc);
    } else {
      return new HColumnDescriptor(new ModifyableColumnFamilyDescriptor(desc));
    }
  }

  @Override
  public String getConfigurationValue(String key) {
    return delegatee.getConfigurationValue(key);
  }

  @Override
  public Map<String, String> getConfiguration() {
    return delegatee.getConfiguration();
  }

  /**
   * Setter for storing a configuration setting.
   * @param key   Config key. Same as XML config key e.g. hbase.something.or.other.
   * @param value String value. If null, removes the configuration.
   */
  public HColumnDescriptor setConfiguration(String key, String value) {
    getDelegateeForModification().setConfiguration(key, value);
    return this;
  }

  /**
   * Remove a configuration setting represented by the key.
   */
  public void removeConfiguration(final String key) {
    getDelegateeForModification().removeConfiguration(key);
  }

  @Override
  public String getEncryptionType() {
    return delegatee.getEncryptionType();
  }

  /**
   * Set the encryption algorithm for use with this family n
   */
  public HColumnDescriptor setEncryptionType(String value) {
    getDelegateeForModification().setEncryptionType(value);
    return this;
  }

  @Override
  public byte[] getEncryptionKey() {
    return delegatee.getEncryptionKey();
  }

  /** Set the raw crypto key attribute for the family */
  public HColumnDescriptor setEncryptionKey(byte[] value) {
    getDelegateeForModification().setEncryptionKey(value);
    return this;
  }

  @Override
  public long getMobThreshold() {
    return delegatee.getMobThreshold();
  }

  /**
   * Sets the mob threshold of the family.
   * @param value The mob threshold.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setMobThreshold(long value) {
    getDelegateeForModification().setMobThreshold(value);
    return this;
  }

  @Override
  public boolean isMobEnabled() {
    return delegatee.isMobEnabled();
  }

  /**
   * Enables the mob for the family.
   * @param value Whether to enable the mob for the family.
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setMobEnabled(boolean value) {
    getDelegateeForModification().setMobEnabled(value);
    return this;
  }

  @Override
  public MobCompactPartitionPolicy getMobCompactPartitionPolicy() {
    return delegatee.getMobCompactPartitionPolicy();
  }

  /**
   * Set the mob compact partition policy for the family.
   * @param value policy type
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setMobCompactPartitionPolicy(MobCompactPartitionPolicy value) {
    getDelegateeForModification().setMobCompactPartitionPolicy(value);
    return this;
  }

  @Override
  public short getDFSReplication() {
    return delegatee.getDFSReplication();
  }

  /**
   * Set the replication factor to hfile(s) belonging to this family
   * @param value number of replicas the blocks(s) belonging to this CF should have, or
   *              {@link #DEFAULT_DFS_REPLICATION} for the default replication factor set in the
   *              filesystem
   * @return this (for chained invocation)
   */
  public HColumnDescriptor setDFSReplication(short value) {
    getDelegateeForModification().setDFSReplication(value);
    return this;
  }

  @Override
  public String getStoragePolicy() {
    return delegatee.getStoragePolicy();
  }

  /**
   * Set the storage policy for use with this family
   * @param value the policy to set, valid setting includes: <i>"LAZY_PERSIST"</i>,
   *              <i>"ALL_SSD"</i>, <i>"ONE_SSD"</i>, <i>"HOT"</i>, <i>"WARM"</i>, <i>"COLD"</i>
   */
  public HColumnDescriptor setStoragePolicy(String value) {
    getDelegateeForModification().setStoragePolicy(value);
    return this;
  }

  @Override
  public Bytes getValue(Bytes key) {
    return delegatee.getValue(key);
  }

  protected ModifyableColumnFamilyDescriptor getDelegateeForModification() {
    return delegatee;
  }
}