public class ReplicableCommandExternalizer extends AbstractExternalizer<ReplicableCommand>
Constructor and Description |
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ReplicableCommandExternalizer(RemoteCommandsFactory cmdFactory,
GlobalComponentRegistry globalComponentRegistry) |
Modifier and Type | Method and Description |
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protected CacheRpcCommand |
fromStream(byte id,
Object[] parameters,
byte type,
String cacheName) |
Integer |
getId()
Returns an integer that identifies the externalizer type.
|
Set<Class<? extends ReplicableCommand>> |
getTypeClasses()
Returns a collection of Class instances representing the types that this
AdvancedExternalizer can marshall.
|
ReplicableCommand |
readObject(ObjectInput input)
Read an instance from the stream.
|
protected Object[] |
readParameters(ObjectInput input) |
protected void |
writeCommandHeader(ObjectOutput output,
ReplicableCommand command) |
protected static void |
writeCommandParameters(ObjectOutput output,
ReplicableCommand command) |
void |
writeObject(ObjectOutput output,
ReplicableCommand command)
Write the object reference to the stream.
|
public ReplicableCommandExternalizer(RemoteCommandsFactory cmdFactory, GlobalComponentRegistry globalComponentRegistry)
public void writeObject(ObjectOutput output, ReplicableCommand command) throws IOException
Externalizer
output
- the object output to write tocommand
- the object reference to writeIOException
- if an I/O error occursprotected static void writeCommandParameters(ObjectOutput output, ReplicableCommand command) throws IOException
IOException
protected void writeCommandHeader(ObjectOutput output, ReplicableCommand command) throws IOException
IOException
public ReplicableCommand readObject(ObjectInput input) throws IOException, ClassNotFoundException
Externalizer
Externalizer.writeObject(ObjectOutput, Object)
method. Implementations are free
to create instances of the object read from the stream in any way that they
feel like. This could be via constructor, factory or reflection.input
- the object input to read fromIOException
- if an I/O error occursClassNotFoundException
- if a class could not be foundprotected Object[] readParameters(ObjectInput input) throws IOException, ClassNotFoundException
IOException
ClassNotFoundException
protected CacheRpcCommand fromStream(byte id, Object[] parameters, byte type, String cacheName)
public Integer getId()
AdvancedExternalizer
AdvancedExternalizer
should read
the contents of the incoming buffer.
Using a positive integer allows for very efficient variable length
encoding of numbers, and it's much more efficient than shipping
AdvancedExternalizer
implementation class information around.
Negative values are not allowed.
Implementers of this interface can use any positive integer as long as
it does not clash with any other identifier in the system. You can find
information on the pre-assigned identifier ranges in
here.
It's highly recommended that maintaining of these identifiers is done
in a centralized way and you can do so by making annotations reference
a set of statically defined identifiers in a separate class or
interface. Such class/interface gives a global view of the identifiers
in use and so can make it easier to assign new ids.
Implementors can optionally avoid giving a meaningful implementation to
this method (i.e. return null) and instead rely on XML or programmatic
configuration to provide the AdvancedExternalizer id. If no id can be
determined via the implementation or XML/programmatic configuration, an
error will be reported. If an id has been defined both via the
implementation and XML/programmatic configuration, the value defined via
XML/programmatic configuration will be used ignoring the other.getId
in interface AdvancedExternalizer<ReplicableCommand>
getId
in class AbstractExternalizer<ReplicableCommand>
public Set<Class<? extends ReplicableCommand>> getTypeClasses()
AdvancedExternalizer
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