--- /dev/null
+<?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
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: Proxy.php 16971 2009-07-22 18:05:45Z mikaelkael $
+ */
+
+/** Zend_Search_Lucene_Interface */
+require_once 'Zend/Search/Lucene/Interface.php';
+
+
+/**
+ * Proxy class intended to be used in userland.
+ *
+ * It tracks, when index object goes out of scope and forces ndex closing
+ *
+ * @category Zend
+ * @package Zend_Search_Lucene
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Search_Lucene_Proxy implements Zend_Search_Lucene_Interface
+{
+ /**
+ * Index object
+ *
+ * @var Zend_Search_Lucene_Interface
+ */
+ private $_index;
+
+ /**
+ * Object constructor
+ *
+ * @param Zend_Search_Lucene_Interface $index
+ */
+ public function __construct(Zend_Search_Lucene_Interface $index)
+ {
+ $this->_index = $index;
+ $this->_index->addReference();
+ }
+
+ /**
+ * Object destructor
+ */
+ public function __destruct()
+ {
+ if ($this->_index !== null) {
+ // This code is invoked if Zend_Search_Lucene_Interface object constructor throws an exception
+ $this->_index->removeReference();
+ }
+ $this->_index = null;
+ }
+
+ /**
+ * Get current generation number
+ *
+ * Returns generation number
+ * 0 means pre-2.1 index format
+ * -1 means there are no segments files.
+ *
+ * @param Zend_Search_Lucene_Storage_Directory $directory
+ * @return integer
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public static function getActualGeneration(Zend_Search_Lucene_Storage_Directory $directory)
+ {
+ Zend_Search_Lucene::getActualGeneration($directory);
+ }
+
+ /**
+ * Get segments file name
+ *
+ * @param integer $generation
+ * @return string
+ */
+ public static function getSegmentFileName($generation)
+ {
+ Zend_Search_Lucene::getSegmentFileName($generation);
+ }
+
+ /**
+ * Get index format version
+ *
+ * @return integer
+ */
+ public function getFormatVersion()
+ {
+ return $this->_index->getFormatVersion();
+ }
+
+ /**
+ * Set index format version.
+ * Index is converted to this format at the nearest upfdate time
+ *
+ * @param int $formatVersion
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function setFormatVersion($formatVersion)
+ {
+ $this->_index->setFormatVersion($formatVersion);
+ }
+
+ /**
+ * Returns the Zend_Search_Lucene_Storage_Directory instance for this index.
+ *
+ * @return Zend_Search_Lucene_Storage_Directory
+ */
+ public function getDirectory()
+ {
+ return $this->_index->getDirectory();
+ }
+
+ /**
+ * Returns the total number of documents in this index (including deleted documents).
+ *
+ * @return integer
+ */
+ public function count()
+ {
+ return $this->_index->count();
+ }
+
+ /**
+ * Returns one greater than the largest possible document number.
+ * This may be used to, e.g., determine how big to allocate a structure which will have
+ * an element for every document number in an index.
+ *
+ * @return integer
+ */
+ public function maxDoc()
+ {
+ return $this->_index->maxDoc();
+ }
+
+ /**
+ * Returns the total number of non-deleted documents in this index.
+ *
+ * @return integer
+ */
+ public function numDocs()
+ {
+ return $this->_index->numDocs();
+ }
+
+ /**
+ * Checks, that document is deleted
+ *
+ * @param integer $id
+ * @return boolean
+ * @throws Zend_Search_Lucene_Exception Exception is thrown if $id is out of the range
+ */
+ public function isDeleted($id)
+ {
+ return $this->_index->isDeleted($id);
+ }
+
+ /**
+ * Set default search field.
+ *
+ * Null means, that search is performed through all fields by default
+ *
+ * Default value is null
+ *
+ * @param string $fieldName
+ */
+ public static function setDefaultSearchField($fieldName)
+ {
+ Zend_Search_Lucene::setDefaultSearchField($fieldName);
+ }
+
+ /**
+ * Get default search field.
+ *
+ * Null means, that search is performed through all fields by default
+ *
+ * @return string
+ */
+ public static function getDefaultSearchField()
+ {
+ return Zend_Search_Lucene::getDefaultSearchField();
+ }
+
+ /**
+ * Set result set limit.
+ *
+ * 0 (default) means no limit
+ *
+ * @param integer $limit
+ */
+ public static function setResultSetLimit($limit)
+ {
+ Zend_Search_Lucene::setResultSetLimit($limit);
+ }
+
+ /**
+ * Set result set limit.
+ *
+ * 0 means no limit
+ *
+ * @return integer
+ */
+ public static function getResultSetLimit()
+ {
+ return Zend_Search_Lucene::getResultSetLimit();
+ }
+
+ /**
+ * Retrieve index maxBufferedDocs option
+ *
+ * maxBufferedDocs is a minimal number of documents required before
+ * the buffered in-memory documents are written into a new Segment
+ *
+ * Default value is 10
+ *
+ * @return integer
+ */
+ public function getMaxBufferedDocs()
+ {
+ return $this->_index->getMaxBufferedDocs();
+ }
+
+ /**
+ * Set index maxBufferedDocs option
+ *
+ * maxBufferedDocs is a minimal number of documents required before
+ * the buffered in-memory documents are written into a new Segment
+ *
+ * Default value is 10
+ *
+ * @param integer $maxBufferedDocs
+ */
+ public function setMaxBufferedDocs($maxBufferedDocs)
+ {
+ $this->_index->setMaxBufferedDocs($maxBufferedDocs);
+ }
+
+
+ /**
+ * Retrieve index maxMergeDocs option
+ *
+ * maxMergeDocs is a largest number of documents ever merged by addDocument().
+ * Small values (e.g., less than 10,000) are best for interactive indexing,
+ * as this limits the length of pauses while indexing to a few seconds.
+ * Larger values are best for batched indexing and speedier searches.
+ *
+ * Default value is PHP_INT_MAX
+ *
+ * @return integer
+ */
+ public function getMaxMergeDocs()
+ {
+ return $this->_index->getMaxMergeDocs();
+ }
+
+ /**
+ * Set index maxMergeDocs option
+ *
+ * maxMergeDocs is a largest number of documents ever merged by addDocument().
+ * Small values (e.g., less than 10,000) are best for interactive indexing,
+ * as this limits the length of pauses while indexing to a few seconds.
+ * Larger values are best for batched indexing and speedier searches.
+ *
+ * Default value is PHP_INT_MAX
+ *
+ * @param integer $maxMergeDocs
+ */
+ public function setMaxMergeDocs($maxMergeDocs)
+ {
+ $this->_index->setMaxMergeDocs($maxMergeDocs);
+ }
+
+
+ /**
+ * Retrieve index mergeFactor option
+ *
+ * mergeFactor determines how often segment indices are merged by addDocument().
+ * With smaller values, less RAM is used while indexing,
+ * and searches on unoptimized indices are faster,
+ * but indexing speed is slower.
+ * With larger values, more RAM is used during indexing,
+ * and while searches on unoptimized indices are slower,
+ * indexing is faster.
+ * Thus larger values (> 10) are best for batch index creation,
+ * and smaller values (< 10) for indices that are interactively maintained.
+ *
+ * Default value is 10
+ *
+ * @return integer
+ */
+ public function getMergeFactor()
+ {
+ return $this->_index->getMergeFactor();
+ }
+
+ /**
+ * Set index mergeFactor option
+ *
+ * mergeFactor determines how often segment indices are merged by addDocument().
+ * With smaller values, less RAM is used while indexing,
+ * and searches on unoptimized indices are faster,
+ * but indexing speed is slower.
+ * With larger values, more RAM is used during indexing,
+ * and while searches on unoptimized indices are slower,
+ * indexing is faster.
+ * Thus larger values (> 10) are best for batch index creation,
+ * and smaller values (< 10) for indices that are interactively maintained.
+ *
+ * Default value is 10
+ *
+ * @param integer $maxMergeDocs
+ */
+ public function setMergeFactor($mergeFactor)
+ {
+ $this->_index->setMergeFactor($mergeFactor);
+ }
+
+ /**
+ * Performs a query against the index and returns an array
+ * of Zend_Search_Lucene_Search_QueryHit objects.
+ * Input is a string or Zend_Search_Lucene_Search_Query.
+ *
+ * @param mixed $query
+ * @return array Zend_Search_Lucene_Search_QueryHit
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function find($query)
+ {
+ // actual parameter list
+ $parameters = func_get_args();
+
+ // invoke $this->_index->find() method with specified parameters
+ return call_user_func_array(array(&$this->_index, 'find'), $parameters);
+ }
+
+ /**
+ * Returns a list of all unique field names that exist in this index.
+ *
+ * @param boolean $indexed
+ * @return array
+ */
+ public function getFieldNames($indexed = false)
+ {
+ return $this->_index->getFieldNames($indexed);
+ }
+
+ /**
+ * Returns a Zend_Search_Lucene_Document object for the document
+ * number $id in this index.
+ *
+ * @param integer|Zend_Search_Lucene_Search_QueryHit $id
+ * @return Zend_Search_Lucene_Document
+ */
+ public function getDocument($id)
+ {
+ return $this->_index->getDocument($id);
+ }
+
+ /**
+ * Returns true if index contain documents with specified term.
+ *
+ * Is used for query optimization.
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @return boolean
+ */
+ public function hasTerm(Zend_Search_Lucene_Index_Term $term)
+ {
+ return $this->_index->hasTerm($term);
+ }
+
+ /**
+ * Returns IDs of all the documents containing term.
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @param Zend_Search_Lucene_Index_DocsFilter|null $docsFilter
+ * @return array
+ */
+ public function termDocs(Zend_Search_Lucene_Index_Term $term, $docsFilter = null)
+ {
+ return $this->_index->termDocs($term, $docsFilter);
+ }
+
+ /**
+ * Returns documents filter for all documents containing term.
+ *
+ * It performs the same operation as termDocs, but return result as
+ * Zend_Search_Lucene_Index_DocsFilter object
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @param Zend_Search_Lucene_Index_DocsFilter|null $docsFilter
+ * @return Zend_Search_Lucene_Index_DocsFilter
+ */
+ public function termDocsFilter(Zend_Search_Lucene_Index_Term $term, $docsFilter = null)
+ {
+ return $this->_index->termDocsFilter($term, $docsFilter);
+ }
+
+ /**
+ * Returns an array of all term freqs.
+ * Return array structure: array( docId => freq, ...)
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @param Zend_Search_Lucene_Index_DocsFilter|null $docsFilter
+ * @return integer
+ */
+ public function termFreqs(Zend_Search_Lucene_Index_Term $term, $docsFilter = null)
+ {
+ return $this->_index->termFreqs($term, $docsFilter);
+ }
+
+ /**
+ * Returns an array of all term positions in the documents.
+ * Return array structure: array( docId => array( pos1, pos2, ...), ...)
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @param Zend_Search_Lucene_Index_DocsFilter|null $docsFilter
+ * @return array
+ */
+ public function termPositions(Zend_Search_Lucene_Index_Term $term, $docsFilter = null)
+ {
+ return $this->_index->termPositions($term, $docsFilter);
+ }
+
+ /**
+ * Returns the number of documents in this index containing the $term.
+ *
+ * @param Zend_Search_Lucene_Index_Term $term
+ * @return integer
+ */
+ public function docFreq(Zend_Search_Lucene_Index_Term $term)
+ {
+ return $this->_index->docFreq($term);
+ }
+
+ /**
+ * Retrive similarity used by index reader
+ *
+ * @return Zend_Search_Lucene_Search_Similarity
+ */
+ public function getSimilarity()
+ {
+ return $this->_index->getSimilarity();
+ }
+
+ /**
+ * Returns a normalization factor for "field, document" pair.
+ *
+ * @param integer $id
+ * @param string $fieldName
+ * @return float
+ */
+ public function norm($id, $fieldName)
+ {
+ return $this->_index->norm($id, $fieldName);
+ }
+
+ /**
+ * Returns true if any documents have been deleted from this index.
+ *
+ * @return boolean
+ */
+ public function hasDeletions()
+ {
+ return $this->_index->hasDeletions();
+ }
+
+ /**
+ * Deletes a document from the index.
+ * $id is an internal document id
+ *
+ * @param integer|Zend_Search_Lucene_Search_QueryHit $id
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function delete($id)
+ {
+ return $this->_index->delete($id);
+ }
+
+ /**
+ * Adds a document to this index.
+ *
+ * @param Zend_Search_Lucene_Document $document
+ */
+ public function addDocument(Zend_Search_Lucene_Document $document)
+ {
+ $this->_index->addDocument($document);
+ }
+
+ /**
+ * Commit changes resulting from delete() or undeleteAll() operations.
+ */
+ public function commit()
+ {
+ $this->_index->commit();
+ }
+
+ /**
+ * Optimize index.
+ *
+ * Merges all segments into one
+ */
+ public function optimize()
+ {
+ $this->_index->optimize();
+ }
+
+ /**
+ * Returns an array of all terms in this index.
+ *
+ * @return array
+ */
+ public function terms()
+ {
+ return $this->_index->terms();
+ }
+
+
+ /**
+ * Reset terms stream.
+ */
+ public function resetTermsStream()
+ {
+ $this->_index->resetTermsStream();
+ }
+
+ /**
+ * Skip terms stream up to specified term preffix.
+ *
+ * Prefix contains fully specified field info and portion of searched term
+ *
+ * @param Zend_Search_Lucene_Index_Term $prefix
+ */
+ public function skipTo(Zend_Search_Lucene_Index_Term $prefix)
+ {
+ return $this->_index->skipTo($prefix);
+ }
+
+ /**
+ * Scans terms dictionary and returns next term
+ *
+ * @return Zend_Search_Lucene_Index_Term|null
+ */
+ public function nextTerm()
+ {
+ return $this->_index->nextTerm();
+ }
+
+ /**
+ * Returns term in current position
+ *
+ * @return Zend_Search_Lucene_Index_Term|null
+ */
+ public function currentTerm()
+ {
+ return $this->_index->currentTerm();
+ }
+
+ /**
+ * Close terms stream
+ *
+ * Should be used for resources clean up if stream is not read up to the end
+ */
+ public function closeTermsStream()
+ {
+ $this->_index->closeTermsStream();
+ }
+
+
+ /**
+ * Undeletes all documents currently marked as deleted in this index.
+ */
+ public function undeleteAll()
+ {
+ return $this->_index->undeleteAll();
+ }
+
+ /**
+ * Add reference to the index object
+ *
+ * @internal
+ */
+ public function addReference()
+ {
+ return $this->_index->addReference();
+ }
+
+ /**
+ * Remove reference from the index object
+ *
+ * When reference count becomes zero, index is closed and resources are cleaned up
+ *
+ * @internal
+ */
+ public function removeReference()
+ {
+ return $this->_index->removeReference();
+ }
+}
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