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<?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 MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Schema\Visitor\Visitor;
/**
* Sequence structure.
*
* @link www.doctrine-project.org
* @since 2.0
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class Sequence extends AbstractAsset
{
/**
* @var integer
*/
protected $_allocationSize = 1;
/**
* @var integer
*/
protected $_initialValue = 1;
/**
* @param string $name
* @param integer $allocationSize
* @param integer $initialValue
*/
public function __construct($name, $allocationSize=1, $initialValue=1)
{
$this->_setName($name);
$this->_allocationSize = (is_numeric($allocationSize))?$allocationSize:1;
$this->_initialValue = (is_numeric($initialValue))?$initialValue:1;
}
/**
* @return integer
*/
public function getAllocationSize()
{
return $this->_allocationSize;
}
/**
* @return integer
*/
public function getInitialValue()
{
return $this->_initialValue;
}
/**
* @param integer $allocationSize
*
* @return void
*/
public function setAllocationSize($allocationSize)
{
$this->_allocationSize = (is_numeric($allocationSize))?$allocationSize:1;
}
/**
* @param integer $initialValue
*
* @return void
*/
public function setInitialValue($initialValue)
{
$this->_initialValue = (is_numeric($initialValue))?$initialValue:1;
}
/**
* Checks if this sequence is an autoincrement sequence for a given table.
*
* This is used inside the comparator to not report sequences as missing,
* when the "from" schema implicitly creates the sequences.
*
* @param \Doctrine\DBAL\Schema\Table $table
*
* @return boolean
*/
public function isAutoIncrementsFor(Table $table)
{
if ( ! $table->hasPrimaryKey()) {
return false;
}
$pkColumns = $table->getPrimaryKey()->getColumns();
if (count($pkColumns) != 1) {
return false;
}
$column = $table->getColumn($pkColumns[0]);
if ( ! $column->getAutoincrement()) {
return false;
}
$sequenceName = $this->getShortestName($table->getNamespaceName());
$tableName = $table->getShortestName($table->getNamespaceName());
$tableSequenceName = sprintf('%s_%s_seq', $tableName, $pkColumns[0]);
return $tableSequenceName === $sequenceName;
}
/**
* @param \Doctrine\DBAL\Schema\Visitor\Visitor $visitor
*
* @return void
*/
public function visit(Visitor $visitor)
{
$visitor->acceptSequence($this);
}
}
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