48 lines
1.8 KiB
PHP
48 lines
1.8 KiB
PHP
<?php
|
|
/*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* This software consists of voluntary contributions made by many individuals
|
|
* and is licensed under the LGPL. For more information, see
|
|
* <http://www.doctrine-project.org>.
|
|
*/
|
|
|
|
|
|
namespace Doctrine\Common;
|
|
|
|
/**
|
|
* Comparable interface that allows to compare two value objects to each other for similarity.
|
|
*
|
|
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
|
|
* @link www.doctrine-project.com
|
|
* @since 2.2
|
|
* @author Benjamin Eberlei <kontakt@beberlei.de>
|
|
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
|
|
*/
|
|
interface Comparable
|
|
{
|
|
/**
|
|
* Compare the current object to the passed $other.
|
|
*
|
|
* Returns 0 if they are semantically equal, 1 if the other object
|
|
* is less than the current one, or -1 if its more than the current one.
|
|
*
|
|
* This method should not check for identity using ===, only for semantical equality for example
|
|
* when two different DateTime instances point to the exact same Date + TZ.
|
|
*
|
|
* @return int
|
|
*/
|
|
public function compareTo($other);
|
|
}
|
|
|