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<?php namespace Doctrine\DBAL\Schema; use Doctrine\DBAL\Schema\Visitor\Visitor; use function count; use function sprintf; /** * Sequence structure. */ class Sequence extends AbstractAsset { /** @var int */ protected $allocationSize = 1; /** @var int */ protected $initialValue = 1; /** @var int|null */ protected $cache; /** * @param string $name * @param int $allocationSize * @param int $initialValue * @param int|null $cache */ public function __construct($name, $allocationSize = 1, $initialValue = 1, $cache = null) { $this->_setName($name); $this->setAllocationSize($allocationSize); $this->setInitialValue($initialValue); $this->cache = $cache; } /** * @return int */ public function getAllocationSize() { return $this->allocationSize; } /** * @return int */ public function getInitialValue() { return $this->initialValue; } /** * @return int|null */ public function getCache() { return $this->cache; } /** * @param int $allocationSize * * @return Sequence */ public function setAllocationSize($allocationSize) { if ($allocationSize > 0) { $this->allocationSize = $allocationSize; } else { $this->allocationSize = 1; } return $this; } /** * @param int $initialValue * * @return Sequence */ public function setInitialValue($initialValue) { if ($initialValue > 0) { $this->initialValue = $initialValue; } else { $this->initialValue = 1; } return $this; } /** * @param int $cache * * @return Sequence */ public function setCache($cache) { $this->cache = $cache; return $this; } /** * 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. * * @return bool */ public function isAutoIncrementsFor(Table $table) { $primaryKey = $table->getPrimaryKey(); if ($primaryKey === null) { return false; } $pkColumns = $primaryKey->getColumns(); if (count($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, $column->getShortestName($table->getNamespaceName())); return $tableSequenceName === $sequenceName; } /** * @return void */ public function visit(Visitor $visitor) { $visitor->acceptSequence($this); } }