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1 <?php
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2 /*
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3 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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4 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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5 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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6 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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7 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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8 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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9 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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10 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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12 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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14 *
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15 * This software consists of voluntary contributions made by many individuals
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16 * and is licensed under the MIT license. For more information, see
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17 * <http://www.doctrine-project.org>.
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18 */
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19
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20 namespace Doctrine\Common\Collections;
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21
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22 /**
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23 * Interface for collections that allow efficient filtering with an expression API.
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24 *
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25 * Goal of this interface is a backend independent method to fetch elements
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26 * from a collections. {@link Expression} is crafted in a way that you can
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27 * implement queries from both in-memory and database-backed collections.
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28 *
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29 * For database backed collections this allows very efficient access by
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30 * utilizing the query APIs, for example SQL in the ORM. Applications using
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31 * this API can implement efficient database access without having to ask the
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32 * EntityManager or Repositories.
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33 *
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34 * @author Benjamin Eberlei <kontakt@beberlei.de>
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35 * @since 2.3
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36 */
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37 interface Selectable
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38 {
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39 /**
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40 * Selects all elements from a selectable that match the expression and
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41 * returns a new collection containing these elements.
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42 *
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43 * @param Criteria $criteria
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44 *
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45 * @return Collection
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46 */
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47 public function matching(Criteria $criteria);
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48 }
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