91 lines
2.5 KiB
PHP
91 lines
2.5 KiB
PHP
<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\Common\Collections\Expr;
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/**
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* Expression of Expressions combined by AND or OR operation.
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*
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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* @since 2.3
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*/
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class CompositeExpression implements Expression
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{
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const TYPE_AND = 'AND';
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const TYPE_OR = 'OR';
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/**
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* @var string
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*/
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private $type;
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/**
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* @var Expression[]
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*/
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private $expressions = array();
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/**
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* @param string $type
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* @param array $expressions
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*
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* @throws \RuntimeException
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*/
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public function __construct($type, array $expressions)
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{
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$this->type = $type;
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foreach ($expressions as $expr) {
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if ($expr instanceof Value) {
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throw new \RuntimeException("Values are not supported expressions as children of and/or expressions.");
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}
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if ( ! ($expr instanceof Expression)) {
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throw new \RuntimeException("No expression given to CompositeExpression.");
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}
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$this->expressions[] = $expr;
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}
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}
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/**
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* Returns the list of expressions nested in this composite.
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*
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* @return Expression[]
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*/
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public function getExpressionList()
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{
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return $this->expressions;
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}
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/**
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* @return string
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*/
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public function getType()
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{
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return $this->type;
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}
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/**
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* {@inheritDoc}
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*/
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public function visit(ExpressionVisitor $visitor)
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{
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return $visitor->walkCompositeExpression($this);
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}
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}
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