private boolean doesCommandExist(String commandName, int arity) {
for (ShellCommand cmd : commandTable) {
if (cmd.canBeDenotedBy(commandName) && cmd.getArity() == arity) {
return true;
}
}
return false;
}
public List<ShellCommand> commandsByName(String discriminator) {
List<ShellCommand> collectedTable = new ArrayList<ShellCommand>();
// collection
for (ShellCommand cs : commandTable) {
if (cs.canBeDenotedBy(discriminator)) {
collectedTable.add(cs);
}
}
return collectedTable;
}
