comparison vendor/doctrine/common/lib/Doctrine/Common/Comparable.php @ 0:4c8ae668cc8c

Initial import (non-working)
author Chris Cannam
date Wed, 29 Nov 2017 16:09:58 +0000
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-1:000000000000 0:4c8ae668cc8c
1 <?php
2 /*
3 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
4 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
5 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
6 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
7 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
8 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
9 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
10 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
12 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14 *
15 * This software consists of voluntary contributions made by many individuals
16 * and is licensed under the MIT license. For more information, see
17 * <http://www.doctrine-project.org>.
18 */
19
20 namespace Doctrine\Common;
21
22 /**
23 * Comparable interface that allows to compare two value objects to each other for similarity.
24 *
25 * @link www.doctrine-project.org
26 * @since 2.2
27 * @author Benjamin Eberlei <kontakt@beberlei.de>
28 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
29 */
30 interface Comparable
31 {
32 /**
33 * Compares the current object to the passed $other.
34 *
35 * Returns 0 if they are semantically equal, 1 if the other object
36 * is less than the current one, or -1 if its more than the current one.
37 *
38 * This method should not check for identity using ===, only for semantical equality for example
39 * when two different DateTime instances point to the exact same Date + TZ.
40 *
41 * @param mixed $other
42 *
43 * @return int
44 */
45 public function compareTo($other);
46 }