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Current File : //proc/self/root/home/bitrix/www/bitrix/modules/perfmon/lib/sql/sequence.php

<?php
namespace Bitrix\Perfmon\Sql;

class Sequence extends BaseObject
{
	/**
	 * Creates sequence object from tokens.
	 * <p>
	 * Current position should point to the name of the sequence.
	 *
	 * @param Tokenizer $tokenizer Tokens collection.
	 *
	 * @return Sequence
	 */
	public static function create(Tokenizer $tokenizer)
	{
		$name = $tokenizer->getCurrentToken()->text;
		$sequence = new self($name);

		$tokenizer->resetState();
		$definition = '';
		while (!$tokenizer->endOfInput())
		{
			$definition .= $tokenizer->getCurrentToken()->text;
			$tokenizer->nextToken();
		}

		$sequence->setBody($definition);

		return $sequence;
	}

	/**
	 * Return DDL for sequence creation.
	 *
	 * @param string $dbType Database type (ORACLE only).
	 *
	 * @return array|string
	 */
	public function getCreateDdl($dbType = '')
	{
		switch ($dbType)
		{
		case "ORACLE":
			return $this->body;
		default:
			return "// ".get_class($this).":getDropDdl for database type [".$dbType."] not implemented";
		}
	}

	/**
	 * Return DDL for sequence destruction.
	 *
	 * @param string $dbType Database type (ORACLE only).
	 *
	 * @return array|string
	 */
	public function getDropDdl($dbType = '')
	{
		switch ($dbType)
		{
		case "ORACLE":
			return "DROP SEQUENCE ".$this->name;
		default:
			return "// ".get_class($this).":getDropDdl for database type [".$dbType."] not implemented";
		}
	}

	/**
	 * Return DDL for sequence modification (drop with subsequent create).
	 *
	 * @param BaseObject $target Target object.
	 * @param string $dbType Database type (ORACLE only).
	 *
	 * @return array|string
	 */
	public function getModifyDdl(BaseObject $target, $dbType = '')
	{
		switch ($dbType)
		{
		case "ORACLE":
			return array(
				$this->getDropDdl($dbType),
				$target->getCreateDdl($dbType),
			);
		default:
			return "// ".get_class($this).":getDropDdl for database type [".$dbType."] not implemented";
		}
	}
}

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