public function change(BookColleague $bookColleague)
{
if ($bookColleague instanceof BookTitleColleague) {
switch ($bookColleague->getState()) {
case 'upper':
if ($this->getAuthor()->getState() != 'upper') {
$this->getAuthor()->setAuthorUpperCase();
}
break;
case 'lower':
if ($this->getAuthor()->getState() != 'lower') {
$this->getAuthor()->setAuthorLowerCase();
}
break;
}
} elseif ($bookColleague instanceof BookAuthorColleague) {
switch ($bookColleague->getState()) {
case 'upper':
if ($this->getTitle()->getState() != 'upper') {
$this->getTitle()->setTitleUpperCase();
}
break;
case 'lower':
if ($this->getTitle()->getState() != 'lower') {
$this->getTitle()->setTitleLowerCase();
}
break;
}
}
}
function change(BookColleague $changingClassIn)
{
if ($changingClassIn instanceof BookAuthorColleague) {
if ('upper' == $changingClassIn->getState()) {
if ('upper' != $this->getTitle()->getState()) {
$this->getTitle()->setTitleUpperCase();
}
} elseif ('lower' == $changingClassIn->getState()) {
if ('lower' != $this->getTitle()->getState()) {
$this->getTitle()->setTitleLowerCase();
}
}
} elseif ($changingClassIn instanceof BookTitleColleague) {
if ('upper' == $changingClassIn->getState()) {
if ('upper' != $this->getAuthor()->getState()) {
$this->getAuthor()->setAuthorUpperCase();
}
} elseif ('lower' == $changingClassIn->getState()) {
if ('lower' != $this->getAuthor()->getState()) {
$this->getAuthor()->setAuthorLowerCase();
}
}
}
}
