org.rocksdb.ColumnFamilyDescriptor Maven / Gradle / Ivy
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
package org.rocksdb;
import java.util.Arrays;
/**
* Describes a column family with a
* name and respective Options.
*/
public class ColumnFamilyDescriptor {
/**
* Creates a new Column Family using a name and default
* options,
*
* @param columnFamilyName name of column family.
* @since 3.10.0
*/
public ColumnFamilyDescriptor(final byte[] columnFamilyName) {
this(columnFamilyName, new ColumnFamilyOptions());
}
/**
* Creates a new Column Family using a name and custom
* options.
*
* @param columnFamilyName name of column family.
* @param columnFamilyOptions options to be used with
* column family.
* @since 3.10.0
*/
@SuppressWarnings("PMD.ArrayIsStoredDirectly")
public ColumnFamilyDescriptor(
final byte[] columnFamilyName, final ColumnFamilyOptions columnFamilyOptions) {
columnFamilyName_ = columnFamilyName;
columnFamilyOptions_ = columnFamilyOptions;
}
/**
* Retrieve name of column family.
*
* @return column family name.
* @since 3.10.0
*/
@SuppressWarnings("PMD.MethodReturnsInternalArray")
public byte[] getName() {
return columnFamilyName_;
}
/**
* Retrieve assigned options instance.
*
* @return Options instance assigned to this instance.
*/
public ColumnFamilyOptions getOptions() {
return columnFamilyOptions_;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final ColumnFamilyDescriptor that = (ColumnFamilyDescriptor) o;
return Arrays.equals(columnFamilyName_, that.columnFamilyName_)
&& columnFamilyOptions_.nativeHandle_ == that.columnFamilyOptions_.nativeHandle_;
}
@Override
public int hashCode() {
int result = (int) (columnFamilyOptions_.nativeHandle_ ^ (columnFamilyOptions_.nativeHandle_ >>> 32));
result = 31 * result + Arrays.hashCode(columnFamilyName_);
return result;
}
private final byte[] columnFamilyName_;
private final ColumnFamilyOptions columnFamilyOptions_;
}