org.apache.hadoop.hbase.io.hfile

Interface CacheableDeserializer<T extends Cacheable>

@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

Methods

Modifier and Type	Method and Description
T	deserialize(ByteBuffer b) Returns the deserialized object.
T	deserialize(ByteBuffer b, boolean reuse)
int	getDeserialiserIdentifier() Get the identifier of this deserialiser.

Method Detail

deserialize

T deserialize(ByteBuffer b)
                                throws IOException

Returns the deserialized object.

Returns:

T the deserialized object.

Throws:

IOException

deserialize

T deserialize(ByteBuffer b,
            boolean reuse)
                                throws IOException

Parameters:

b -

reuse - true if Cacheable object can use the given buffer as its content

Returns:

T the deserialized object.

Throws:

IOException

getDeserialiserIdentifier

int getDeserialiserIdentifier()

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

Returns:

identifier number of this cacheable deserializer