Package org.apache.qpid.protonj2.codec.encoders.messaging

Class MessageAnnotationsTypeEncoder

java.lang.Object

org.apache.qpid.protonj2.codec.encoders.AbstractDescribedTypeEncoder<M>

org.apache.qpid.protonj2.codec.encoders.AbstractDescribedMapTypeEncoder<Symbol,Object,MessageAnnotations>

org.apache.qpid.protonj2.codec.encoders.messaging.MessageAnnotationsTypeEncoder

All Implemented Interfaces:

DescribedTypeEncoder<MessageAnnotations>, TypeEncoder<MessageAnnotations>

public final class MessageAnnotationsTypeEncoder
extends AbstractDescribedMapTypeEncoder<Symbol,Object,MessageAnnotations>

Encoder of AMQP MessageAnnotations type values to a byte stream.

Constructor Summary

Constructors

Constructor	Description
MessageAnnotationsTypeEncoder()

Method Summary

Modifier and Type	Method	Description
UnsignedLong	getDescriptorCode()
Symbol	getDescriptorSymbol()
int	getMapSize(MessageAnnotations value)	Gets the number of elements that will result when this type is encoded into an AMQP Map type.
Class<MessageAnnotations>	getTypeClass()
boolean	hasMap(MessageAnnotations value)	Returns false when the value to be encoded has no Map body and can be written as a Null body type instead of a Map type.
void	writeMapEntries(ProtonBuffer buffer, Encoder encoder, EncoderState state, MessageAnnotations annotations)	Performs the write of the Map entries to the given buffer, the caller takes care of writing the Map preamble and tracking the final size of the written elements of the Map.

Methods inherited from class org.apache.qpid.protonj2.codec.encoders.AbstractDescribedMapTypeEncoder

getMapEncoding, writeArray, writeRawArray, writeType

Methods inherited from class org.apache.qpid.protonj2.codec.encoders.AbstractDescribedTypeEncoder

isArrayType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.qpid.protonj2.codec.DescribedTypeEncoder

encoderRegistered

Constructor Detail

MessageAnnotationsTypeEncoder

public MessageAnnotationsTypeEncoder()

Method Detail

getTypeClass

public Class<MessageAnnotations> getTypeClass()

Returns:

the Class type that this encoder handles.

getDescriptorCode

public UnsignedLong getDescriptorCode()

Returns:

the UnsignedLong value to use as the Descriptor for this type.

getDescriptorSymbol

public Symbol getDescriptorSymbol()

Returns:

the Symbol value to use as the Descriptor for this type.

hasMap

public boolean hasMap(MessageAnnotations value)

Description copied from class: AbstractDescribedMapTypeEncoder

Returns false when the value to be encoded has no Map body and can be written as a Null body type instead of a Map type.

Specified by:

hasMap in class AbstractDescribedMapTypeEncoder<Symbol,Object,MessageAnnotations>

Parameters:

value - the value which be encoded as a map type.

Returns:

true if the type to be encoded has a Map body, false otherwise.

getMapSize

public int getMapSize(MessageAnnotations value)

Description copied from class: AbstractDescribedMapTypeEncoder

Gets the number of elements that will result when this type is encoded into an AMQP Map type.

Specified by:

getMapSize in class AbstractDescribedMapTypeEncoder<Symbol,Object,MessageAnnotations>

Parameters:

value - the value which will be encoded as a map type.

Returns:

the number of elements that should comprise the encoded list.

writeMapEntries

public void writeMapEntries(ProtonBuffer buffer,
                            Encoder encoder,
                            EncoderState state,
                            MessageAnnotations annotations)

Description copied from class: AbstractDescribedMapTypeEncoder

Performs the write of the Map entries to the given buffer, the caller takes care of writing the Map preamble and tracking the final size of the written elements of the Map.

Specified by:

writeMapEntries in class AbstractDescribedMapTypeEncoder<Symbol,Object,MessageAnnotations>

Parameters:

buffer - the buffer where the type should be encoded to.

encoder - the current encoder.

state - the current encoder state.

annotations - the value which will be encoded as a map type.