Package org.infinispan.protostream.impl

Class BaseMarshallerDelegate<T>

java.lang.Object

org.infinispan.protostream.impl.BaseMarshallerDelegate<T>

Direct Known Subclasses:

EnumMarshallerDelegate, MessageMarshallerDelegate, ProtobufTagMarshallerDelegate

public abstract class BaseMarshallerDelegate<T>
extends Object

The marshallers (descendants of BaseMarshaller) do not have a uniform interface, so an extra layer of indirection is used to provide uniformity. A delegate object wraps the real marshaller and delegates actual marshalling to it, taking into account the specific interface differences for each kind of marshaller (EnumMarshaller, MessageMarshaller, ProtoStreamMarshaller).

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
BaseMarshallerDelegate()

Method Summary

Modifier and Type	Method	Description
abstract BaseMarshaller<T>	getMarshaller()	Gets the wrapped marshaller.
abstract void	marshall(ProtobufTagMarshaller.WriteContext ctx, FieldDescriptor fieldDescriptor, T value)	Marshalls an object.
abstract T	unmarshall(ProtobufTagMarshaller.ReadContext ctx, FieldDescriptor fieldDescriptor)	Unmarshalls an object.

Methods inherited from class java.lang.Object

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

Constructor Details

BaseMarshallerDelegate

public BaseMarshallerDelegate()

Method Details

getMarshaller

public abstract BaseMarshaller<T> getMarshaller()

Gets the wrapped marshaller.

Returns:

the wrapped marshaller instance

marshall

public abstract void marshall(ProtobufTagMarshaller.WriteContext ctx,
 FieldDescriptor fieldDescriptor,
 T value)
                       throws IOException

Marshalls an object.

Parameters:

ctx - operation context

fieldDescriptor - the FieldDescriptor of the field being marshalled or null if this is a top-level object

value - the value being marshalled (cannot be null)

Throws:

IOException - if marshalling fails for some reason

unmarshall

public abstract T unmarshall(ProtobufTagMarshaller.ReadContext ctx,
 FieldDescriptor fieldDescriptor)
                      throws IOException

Unmarshalls an object.

Parameters:

ctx - operation context

fieldDescriptor - the FieldDescriptor of the field being unmarshalled or null if this is a top-level object

Throws:

IOException - if unmarshalling fails for some reason