org.keridwen.core.messaging.internal
Class CommandFactory

java.lang.Object
  org.keridwen.core.messaging.internal.CommandFactory

public final class CommandFactory
extends Object

Method Summary

static <ReturnType extends Serializable,IntermediateMessageType extends Serializable,MessageType extends Serializable> Command<ReturnType,MessageType>

compose(Command<IntermediateMessageType,MessageType> command1, Command<ReturnType,IntermediateMessageType> command2) Return the composition of two Commands.

Methods inherited from class java.lang.Object

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

Method Detail

compose

public static <ReturnType extends Serializable,IntermediateMessageType extends Serializable,MessageType extends Serializable> Command<ReturnType,MessageType> compose(Command<IntermediateMessageType,MessageType> command1,
                                                                                                                                                                      Command<ReturnType,IntermediateMessageType> command2)

Return the composition of two Commands. For command2: IntermediateMessageType->ReturnType and command1: MessageType->IntermediateMessageType, composition is defined as the function h such that h(a) == command2(command1(a)) for each a.

Type Parameters:

ReturnType - the return type of the composed function.

IntermediateMessageType - the return type of the g function, that is the message type of the f function

MessageType - the message type of the composed function, that is the message type of the g function

Parameters:

command1 - the first command to compose

command2 - the second command to compose

Returns:

the composed command