/*
* 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.cassandra.io.sstable.metadata;
import java.io.IOException;
import java.util.EnumSet;
import java.util.Map;
import org.apache.cassandra.io.sstable.Descriptor;
import org.apache.cassandra.io.sstable.format.Version;
import org.apache.cassandra.io.util.DataOutputPlus;
Interface for SSTable metadata serializer
/**
* Interface for SSTable metadata serializer
*/
public interface IMetadataSerializer
{
Serialize given metadata components
Params: - components – Metadata components to serialize
- out –
- version –
Throws:
/**
* Serialize given metadata components
*
*
* @param components Metadata components to serialize
* @param out
* @param version
* @throws IOException
*/
void serialize(Map<MetadataType, MetadataComponent> components, DataOutputPlus out, Version version) throws IOException;
Deserialize specified metadata components from given descriptor.
Params: - descriptor – SSTable descriptor
Throws: Returns: Deserialized metadata components, in deserialized order.
/**
* Deserialize specified metadata components from given descriptor.
*
* @param descriptor SSTable descriptor
* @return Deserialized metadata components, in deserialized order.
* @throws IOException
*/
Map<MetadataType, MetadataComponent> deserialize(Descriptor descriptor, EnumSet<MetadataType> types) throws IOException;
Deserialized only metadata component specified from given descriptor.
Params: - descriptor – SSTable descriptor
- type – Metadata component type to deserialize
Throws: Returns: Deserialized metadata component. Can be null if specified type does not exist.
/**
* Deserialized only metadata component specified from given descriptor.
*
* @param descriptor SSTable descriptor
* @param type Metadata component type to deserialize
* @return Deserialized metadata component. Can be null if specified type does not exist.
* @throws IOException
*/
MetadataComponent deserialize(Descriptor descriptor, MetadataType type) throws IOException;
Mutate SSTable level
Params: - descriptor – SSTable descriptor
- newLevel – new SSTable level
Throws:
/**
* Mutate SSTable level
*
* @param descriptor SSTable descriptor
* @param newLevel new SSTable level
* @throws IOException
*/
void mutateLevel(Descriptor descriptor, int newLevel) throws IOException;
Mutate repairedAt time
/**
* Mutate repairedAt time
*/
void mutateRepairedAt(Descriptor descriptor, long newRepairedAt) throws IOException;
}