Command Pattern - serial running

Java

by techbard 2016. 7. 18. 13:22

# ICommand.java

public interface ICommand {
public abstract void exeute();
}

# CommandManager.java

import java.util.ArrayList;

public class CommandManager implements ICommand {
private ArrayList<ICommand> commands = new ArrayList<>();

@Override
public void exeute() {
for (ICommand command : commands)
command.exeute();
}

public boolean add(ICommand command) {
if (command != this) {
commands.add(command);
return true;
}
return false;
}

public void remove(ICommand command) {
if (commands.size() != 0)
commands.remove(command);
}

public void clear() {
commands.clear();
}
}

# Command01.java

public class Command01 implements ICommand {

@Override
public void exeute() {
System.out.println("This is a command 01.");
}
}

# Command02.java

public class Command02 implements ICommand {

@Override
public void exeute() {
System.out.println("This is a command 02.");
}
}

# Main.java

public class Main {
public static void main(String[] args) {
CommandManager commandManager = new CommandManager();
ICommand command01 = new Command01();
ICommand command02 = new Command02();

commandManager.add(command01);
commandManager.add(command02);
commandManager.exeute();
commandManager.remove(command02);

System.out.println("==============================");

commandManager.add(new ICommand() {

@Override
public void exeute() {
System.out.println("This is a new command that now added.");
}
});
commandManager.exeute();
}
}