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authorMario <mario@mariovavti.com>2020-11-27 08:04:00 +0000
committerMario <mario@mariovavti.com>2020-11-27 08:04:00 +0000
commitf4bb7bcbff3770387c2fecfa91ce4a60b916a474 (patch)
treeea007e664d435f1f3d63c87bfe1600484d2bd46c /vendor/ramsey/collection/src/Collection.php
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+<?php
+
+/**
+ * This file is part of the ramsey/collection library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+
+declare(strict_types=1);
+
+namespace Ramsey\Collection;
+
+/**
+ * A collection represents a group of objects.
+ *
+ * Each object in the collection is of a specific, defined type.
+ *
+ * This is a direct implementation of `CollectionInterface`, provided for
+ * the sake of convenience.
+ *
+ * Example usage:
+ *
+ * ``` php
+ * $collection = new \Ramsey\Collection\Collection('My\\Foo');
+ * $collection->add(new \My\Foo());
+ * $collection->add(new \My\Foo());
+ *
+ * foreach ($collection as $foo) {
+ * // Do something with $foo
+ * }
+ * ```
+ *
+ * It is preferable to subclass `AbstractCollection` to create your own typed
+ * collections. For example:
+ *
+ * ``` php
+ * namespace My\Foo;
+ *
+ * class FooCollection extends \Ramsey\Collection\AbstractCollection
+ * {
+ * public function getType()
+ * {
+ * return 'My\\Foo';
+ * }
+ * }
+ * ```
+ *
+ * And then use it similarly to the earlier example:
+ *
+ * ``` php
+ * $fooCollection = new \My\Foo\FooCollection();
+ * $fooCollection->add(new \My\Foo());
+ * $fooCollection->add(new \My\Foo());
+ *
+ * foreach ($fooCollection as $foo) {
+ * // Do something with $foo
+ * }
+ * ```
+ *
+ * The benefit with this approach is that you may do type-checking on the
+ * collection object:
+ *
+ * ``` php
+ * if ($collection instanceof \My\Foo\FooCollection) {
+ * // the collection is a collection of My\Foo objects
+ * }
+ * ```
+ */
+class Collection extends AbstractCollection
+{
+ /**
+ * The type of elements stored in this collection.
+ *
+ * A collection's type is immutable once it is set. For this reason, this
+ * property is set private.
+ *
+ * @var string
+ */
+ private $collectionType;
+
+ /**
+ * Constructs a collection object of the specified type, optionally with the
+ * specified data.
+ *
+ * @param string $collectionType The type (FQCN) associated with this
+ * collection.
+ * @param mixed[] $data The initial items to store in the collection.
+ */
+ public function __construct(string $collectionType, array $data = [])
+ {
+ $this->collectionType = $collectionType;
+ parent::__construct($data);
+ }
+
+ /**
+ * Returns the type associated with this collection.
+ */
+ public function getType(): string
+ {
+ return $this->collectionType;
+ }
+}