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<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Search_Lucene
 * @subpackage Search
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */


/** Zend_Search_Lucene_Index_Term */
require_once 'Zend/Search/Lucene/Index/Term.php';

/** Zend_Search_Lucene_Exception */
require_once 'Zend/Search/Lucene/Exception.php';

/** Zend_Search_Lucene_Search_QueryEntry_Term */
require_once 'Zend/Search/Lucene/Search/QueryEntry/Term.php';

/** Zend_Search_Lucene_Search_QueryEntry_Phrase */
require_once 'Zend/Search/Lucene/Search/QueryEntry/Phrase.php';

/** Zend_Search_Lucene_Search_QueryEntry_Subquery */
require_once 'Zend/Search/Lucene/Search/QueryEntry/Subquery.php';


/** Zend_Search_Lucene_Search_QueryParserException */
require_once 'Zend/Search/Lucene/Search/QueryParserException.php';


/**
 * @category   Zend
 * @package    Zend_Search_Lucene
 * @subpackage Search
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Search_Lucene_Search_QueryEntry
{
    /**
     * Query entry boost factor
     *
     * @var float
     */
    protected $_boost = 1.0;


    /**
     * Process modifier ('~')
     *
     * @param mixed $parameter
     */
    abstract public function processFuzzyProximityModifier($parameter = null);


    /**
     * Transform entry to a subquery
     *
     * @param string $encoding
     * @return Zend_Search_Lucene_Search_Query
     */
    abstract public function getQuery($encoding);

    /**
     * Boost query entry
     *
     * @param float $boostFactor
     */
    public function boost($boostFactor)
    {
        $this->_boost *= $boostFactor;
    }


}