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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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namespace Doctrine\DBAL\Schema;
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use Doctrine\DBAL\Schema\Visitor\Visitor;
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use Doctrine\Deprecations\Deprecation;
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use function count;
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use function sprintf;
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/**
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 * Sequence structure.
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 */
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class Sequence extends AbstractAsset
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{
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    /** @var int */
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    protected $allocationSize = 1;
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    /** @var int */
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    protected $initialValue = 1;
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    /** @var int|null */
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    protected $cache;
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    /**
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     * @param string   $name
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     * @param int      $allocationSize
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     * @param int      $initialValue
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     * @param int|null $cache
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     */
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    public function __construct($name, $allocationSize = 1, $initialValue = 1, $cache = null)
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    {
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        $this->_setName($name);
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        $this->setAllocationSize($allocationSize);
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        $this->setInitialValue($initialValue);
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        $this->cache = $cache;
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    }
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    /** @return int */
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    public function getAllocationSize()
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    {
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        return $this->allocationSize;
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    }
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    /** @return int */
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    public function getInitialValue()
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    {
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        return $this->initialValue;
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    }
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    /** @return int|null */
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    public function getCache()
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    {
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        return $this->cache;
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    }
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    /**
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     * @param int $allocationSize
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     *
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     * @return Sequence
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     */
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    public function setAllocationSize($allocationSize)
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    {
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        if ($allocationSize > 0) {
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            $this->allocationSize = $allocationSize;
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        } else {
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            $this->allocationSize = 1;
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        }
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        return $this;
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    }
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    /**
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     * @param int $initialValue
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     *
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     * @return Sequence
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     */
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    public function setInitialValue($initialValue)
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    {
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        if ($initialValue > 0) {
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            $this->initialValue = $initialValue;
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        } else {
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            $this->initialValue = 1;
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        }
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        return $this;
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    }
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    /**
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     * @param int $cache
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     *
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     * @return Sequence
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     */
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    public function setCache($cache)
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    {
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        $this->cache = $cache;
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        return $this;
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    }
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    /**
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     * Checks if this sequence is an autoincrement sequence for a given table.
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     *
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     * This is used inside the comparator to not report sequences as missing,
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     * when the "from" schema implicitly creates the sequences.
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     *
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     * @return bool
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     */
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    public function isAutoIncrementsFor(Table $table)
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    {
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        $primaryKey = $table->getPrimaryKey();
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        if ($primaryKey === null) {
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            return false;
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        }
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        $pkColumns = $primaryKey->getColumns();
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        if (count($pkColumns) !== 1) {
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            return false;
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        }
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        $column = $table->getColumn($pkColumns[0]);
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        if (! $column->getAutoincrement()) {
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            return false;
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        }
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        $sequenceName      = $this->getShortestName($table->getNamespaceName());
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        $tableName         = $table->getShortestName($table->getNamespaceName());
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        $tableSequenceName = sprintf('%s_%s_seq', $tableName, $column->getShortestName($table->getNamespaceName()));
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        return $tableSequenceName === $sequenceName;
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    }
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    /**
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     * @deprecated
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     *
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     * @return void
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     */
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    public function visit(Visitor $visitor)
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    {
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        Deprecation::triggerIfCalledFromOutside(
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            'doctrine/dbal',
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            'https://github.com/doctrine/dbal/pull/5435',
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            'Sequence::visit() is deprecated.',
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        );
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        $visitor->acceptSequence($this);
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    }
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}