org.apache.hadoop.hbase.io.hfile

Interface CacheableDeserializer<T extends Cacheable>

All Known Implementing Classes:

HFileBlock.BlockDeserializer

@InterfaceAudience.Private
public interface CacheableDeserializer<T extends Cacheable>

Interface for a deserializer. Throws an IOException if the serialized data is incomplete or wrong.

Method Summary

Modifier and Type	Method and Description
T	deserialize(ByteBuff b, ByteBuffAllocator allocator)
int	getDeserializerIdentifier() Get the identifier of this deserializer.

Method Detail

deserialize

T deserialize(ByteBuff b,
              ByteBuffAllocator allocator)
       throws IOException

Parameters:

b - ByteBuff to deserialize the Cacheable.

allocator - to manage NIO ByteBuffers for future allocation or de-allocation.

Returns:

T the deserialized object.

Throws:

IOException

getDeserializerIdentifier

int getDeserializerIdentifier()

Get the identifier of this deserializer. Identifier is unique for each deserializer and generated by CacheableDeserializerIdManager

Returns:

identifier number of this cacheable deserializer