org.apache.cassandra.io

Class ForwardingVersionedSerializer<T>

java.lang.Object

org.apache.cassandra.io.ForwardingVersionedSerializer<T>

All Implemented Interfaces:

IVersionedSerializer<T>

public abstract class ForwardingVersionedSerializer<T>
extends java.lang.Object
implements IVersionedSerializer<T>

A serializer which forwards all its method calls to another serializer. Subclasses should override one or more methods to modify the behavior of the backing serializer as desired per the decorator pattern.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ForwardingVersionedSerializer()

Method Summary

Modifier and Type	Method and Description
protected abstract IVersionedSerializer<T>	delegate(int version) Returns the backing delegate instance that methods are forwarded to.
T	deserialize(DataInputPlus in, int version) Deserialize into the specified DataInputStream instance.
void	serialize(T t, DataOutputPlus out, int version) Serialize the specified type into the specified DataOutputStream instance.
long	serializedSize(T t, int version) Calculate serialized size of object without actually serializing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ForwardingVersionedSerializer

protected ForwardingVersionedSerializer()

Method Detail

delegate

protected abstract IVersionedSerializer<T> delegate(int version)

Returns the backing delegate instance that methods are forwarded to.

Parameters:

version - the server version

Returns:

the backing delegate instance that methods are forwarded to.

serialize

public void serialize(T t,
                      DataOutputPlus out,
                      int version)
               throws java.io.IOException

Description copied from interface: IVersionedSerializer

Serialize the specified type into the specified DataOutputStream instance.

Specified by:

serialize in interface IVersionedSerializer<T>

Parameters:

t - type that needs to be serialized

out - DataOutput into which serialization needs to happen.

version - protocol version

Throws:

java.io.IOException - if serialization fails

deserialize

public T deserialize(DataInputPlus in,
                     int version)
              throws java.io.IOException

Description copied from interface: IVersionedSerializer

Deserialize into the specified DataInputStream instance.

Specified by:

deserialize in interface IVersionedSerializer<T>

Parameters:

in - DataInput from which deserialization needs to happen.

version - protocol version

Returns:

the type that was deserialized

Throws:

java.io.IOException - if deserialization fails

serializedSize

public long serializedSize(T t,
                           int version)

Description copied from interface: IVersionedSerializer

Calculate serialized size of object without actually serializing.

Specified by:

serializedSize in interface IVersionedSerializer<T>

Parameters:

t - object to calculate serialized size

version - protocol version

Returns:

serialized size of object t