Facing Issue in zend_search_lucene - zend-framework

Question

I am using Zend Lucene Search:
......
$results = $test->fetchAll();
setlocale(LC_CTYPE, 'de_DE.iso-8859-1');
Zend_Search_Lucene_Analysis_Analyzer::setDefault(new Zend_Search_Lucene_Analysis_Analyzer_Common_Utf8());
foreach ($results as $result) {
$doc = new Zend_Search_Lucene_Document();
// add Fields
$doc->addField(
Zend_Search_Lucene_Field::Text('testid', $result->id));
$doc->addField(
Zend_Search_Lucene_Field::Keyword('testemail', strtolower(($result->email))));
$doc->addField(
Zend_Search_Lucene_Field::Text('testconfirmdate', $result->confirmdate));
$doc->addField(
Zend_Search_Lucene_Field::Text('testcreateddate', $result->createddate));
// Add document to the index
$index->addDocument($doc);
}
// Optimize index.
$index->optimize();
// Search by query
setlocale(LC_CTYPE, 'de_DE.iso-8859-1');
if(strlen($Data['name']) > 2){
//$query = Zend_Search_Lucene_Search_QueryParser::parse($Data['name'].'*');
$pattern = new Zend_Search_Lucene_Index_Term($Data['name'].'*');
$query = new Zend_Search_Lucene_Search_Query_Wildcard($pattern);
$this->view->hits = $index->find(strtolower($query));
}
else{
$query = $Data['name'];
$this->view->hits = $index->find($query);
}
............
Works fine here:
It works when I give complete word, first 3 character, case insensitive words
My issues are:
When I search for email, i got error like "Wildcard search is supported only for non-multiple word terms "
When I search for number/date like "1234" or 09/06/2011, I got error like "At least 3 non-wildcard characters are required at the beginning of pattern"
I want to search date, email, number here.

Answer 1

In file zend/search/Lucene/search/search/query/wildcard a parameter is set,
private static $_minPrefixLength = 3;
chnage it and it may work..!

Answer 2

Based on NaanuManu's suggestion, I did a little more digging to figure this out - I posted my answer on a related question here, but repeating for convenience:
Taken directly from the Zend Reference documentation, you can use:
Zend_Search_Lucene_Search_Query_Wildcard::getMinPrefixLength() to
query the minimum required prefix length and
use Zend_Search_Lucene_Search_Query_Wildcard::setMinPrefixLength() to
set it.
So my suggestion would be either of two things:
Set the prefixMinLength to 0 using Zend_Search_Lucene_Search_Query_Wildcard::setMinPrefixLength(0)
Validate all search queries using javascript or otherwise to ensure there is a minimum of Zend_Search_Lucene_Search_Query_Wildcard::getMinPrefixLength() before any wildcards used (I recommend querying that instead of assuming the default of "3" so the validation is flexible)