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PHP7 Adapter

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This commit is contained in:
Dominik Liebler
2016-09-22 20:09:07 +02:00
parent f55008ddc7
commit d151e309c5
8 changed files with 81 additions and 86 deletions
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32
Structural/Adapter/EBookAdapter.php
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@@ -3,12 +3,10 @@
namespace DesignPatterns\Structural\Adapter;
/**
* EBookAdapter is an adapter to fit an e-book like a paper book.
*
* This is the adapter here. Notice it implements PaperBookInterface,
* therefore you don't have to change the code of the client which using paper book.
* This is the adapter here. Notice it implements BookInterface,
* therefore you don't have to change the code of the client which is using a Book
*/
class EBookAdapter implements PaperBookInterface
class EBookAdapter implements BookInterface
{
/**
* @var EBookInterface
@@ -16,13 +14,11 @@ class EBookAdapter implements PaperBookInterface
protected $eBook;
/**
* Notice the constructor, it "wraps" an electronic book.
*
* @param EBookInterface $ebook
* @param EBookInterface $eBook
*/
public function __construct(EBookInterface $ebook)
public function __construct(EBookInterface $eBook)
{
$this->eBook = $ebook;
$this->eBook = $eBook;
}
/**
@@ -30,14 +26,22 @@ class EBookAdapter implements PaperBookInterface
*/
public function open()
{
$this->eBook->pressStart();
$this->eBook->unlock();
}
/**
* turns pages.
*/
public function turnPage()
{
$this->eBook->pressNext();
}
/**
* notice the adapted behavior here: EBookInterface::getPage() will return two integers, but BookInterface
* supports only a current page getter, so we adapt the behavior here
*
* @return int
*/
public function getPage(): int
{
return $this->eBook->getPage()[0];
}
}