Solr searchField schema for a single match

Question

I would like to write a specific fieldType that will work as shown at the example below:
Say we have a name: foo MooBar (f00B2r);

"f" => foo MooBar (f00B2r) (and others with a "f")
"foo moob" => foo MooBar (f00B2r) (and others with a "foo moob", etc.)
"foo (f0" => foo MooBar (f00B2r)
"moobar f" => foo MooBar (f00B2r)
"(f00b2r)" => foo MooBar (f00B2r)
"bar" => none
"moobar o" => none
"moob foo" => none

My problems:

If i search for "moobar f" i'll get none;
If i search for "(f00b2r)" i'll get none;

my fieldType in solr/conf/schema.xml:

<fieldType name="frontMatch" class="solr.TextField" positionIncrementGap="255">
  <analyzer type="index">
    <tokenizer class="solr.LowerCaseTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="255" side="front" />
  </analyzer>
  <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="255" side="front" />
  </analyzer>
</fieldType>

P.S.
Sorry for my English and Thanks;

I don't know about the first issue but as far as the second is concerned -- have you tried escaping the parentheses? E.g., querying for `\(foob2r\)` instead of `(foob2r)`? — David Faber, Mar 25 '12 at 02:28

score 0 · Accepted Answer · answered Mar 25 '12 at 05:28

The solution for me:
Part of scheme.xml

<fieldType name="frontMatch" class="solr.TextField" positionIncrementGap="0" >
  <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="255" side="front" />
  </analyzer>
  <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="255" side="front" />
  </analyzer>
</fieldType>

That solves the second problem.
To solve the first one:
Every query should be done with Proximity;
Number 1000000 is equal to operator "AND" when searching.
So, the search query looks like: name:"moobar f"~1000000;
where name is the field we're searching in;

Solr searchField schema for a single match

1 Answers1