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<?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace OpenCloud\Common\Collection;
use Countable;
use OpenCloud\Common\ArrayAccess;
/**
* A generic, abstract collection class that allows collections to exhibit array functionality.
*
* @package OpenCloud\Common\Collection
*/
abstract class ArrayCollection extends ArrayAccess implements Countable
{
/**
* @var array The elements being held by this iterator.
*/
protected $elements;
/**
* @param array $data
*/
public function __construct(array $data = array())
{
$this->setElements($data);
}
/**
* @return int
*/
public function count()
{
return count($this->elements);
}
/**
* @param array $data
* @return $this
*/
public function setElements(array $data = array())
{
$this->elements = $data;
return $this;
}
/**
* Appends a value to the container.
*
* @param $value
*/
public function append($value)
{
$this->elements[] = $value;
}
/**
* Checks to see whether a particular value exists.
*
* @param $value
* @return bool
*/
public function valueExists($value)
{
return array_search($value, $this->elements) !== false;
}
}