com.clearlydecoded.commander.discovery

Class CommandHandlerVerifier

java.lang.Object

com.clearlydecoded.commander.discovery.CommandHandlerVerifier

public class CommandHandlerVerifier
extends Object

CommandHandlerVerifier class is a helper class that makes sure that a CommandHandler is coded properly such that its string-based command type matches the string-based type of the Java Command class that the handler is typed with.

Author:

Yaakov Chaikin (yaakov@ClearlyDecoded.com)

Constructor Summary

Constructors

Constructor and Description
CommandHandlerVerifier()

Method Summary

Modifier and Type	Method and Description
static void	verifyCommandHandlerCompatibility(CommandHandler<? extends Command<? extends CommandResponse>,? extends CommandResponse> commandHandler) Verifies that the commandHandler is associated with a concrete Command class that is implemented with the exact same string command type identifier as the commandHandler type safe concrete Command implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandHandlerVerifier

public CommandHandlerVerifier()

Method Detail

verifyCommandHandlerCompatibility

public static void verifyCommandHandlerCompatibility(CommandHandler<? extends Command<? extends CommandResponse>,? extends CommandResponse> commandHandler)
                                              throws IllegalStateException

Verifies that the commandHandler is associated with a concrete Command class that is implemented with the exact same string command type identifier as the commandHandler type safe concrete Command implementation.

If incompatibility is found, IllegalStateException is thrown.

Calling this method prevents CommandHandler/Command pair that are liked by Java type to produce inconsistent string-based type identifiers.

Parameters:

commandHandler - CommandHandler to verify for correct Command type compatibility.

Throws:

IllegalStateException - if commandHandler is found to command type incompatibility.