Thanks for your reply :)
1. I tested that "q=*:*&fl=body" , 1 doc returned as result as I expected.
2. I'm edit my scheme.xml as you instructed.
<analyzer type="query"
class="com.testsolr.ir.customAnalyzer.MyCustomQueryAnalyzer">
//No filter description.
</analyzer>
but no result returned.
3. I wonder that...
Tipically Tokenizer and filter flow was
1) Input stream provide text stream to tokenizer or filter.
2) tokenizer or filter get a token, and processed token and offset
attribute info has returned.
3) offset attributes has the infomation of token's.
This is a part of tipical filter src that I thought.
------------------------------------------------------------------------------------
public class CustomStemFilter extends TokenFilter {
private MyCustomStemer stemmer;
private TermAttribute termAttr;
private OffsetAttribute offsetAttr;
private TypeAttribute typeAttr;
private Hashtable<String,String> reserved = new
Hashtable<String,String>();
public CustomStemFilter( TokenStream tokenStream, boolean
isQuery,
MyCustomStemer stemmer ){
super( tokenStream );
this.stemmer = stemmer;
termAttr = (TermAttribute)
addAttribute(TermAttribute.class);
offsetAttr = (OffsetAttribute)
addAttribute(OffsetAttribute.class);
typeAttr = (TypeAttribute)
addAttribute(TypeAttribute.class);
addAttribute(PositionIncrementAttribute.class);
//Some of my custom logic here.
//do something.
}
private MyCustomStemmer stemmer = new MyCustomStemmer();
public boolean incrementToken() throws IOException {
clearAttributes();
if (!input.incrementToken())
return false;
StringBuffer queryBuffer = new StringBuffer();
//stemming logic here.
//generated query string has append to queryBuffer.
termAttr.setTermBuffer(queryBuffer.toString(), 0,
queryBuffer.length());
offsetAttr.setOffset(0, queryBuffer.length());
offSet += queryBuffer.length();
typeAttr.setType("word");
return true;
}
}
------------------------------------------------------------------------------------
※ MyCustomStemmer analyze input string "flyaway" to query string :
fly +body:away
and return it.
At index time, contents to be searched is normally analyzed and
indexed as below.
a) Contents to be indexed : fly away
b) Token "fly" and length of "fly" = 3(Has been setup by offset
attribute method)
has returned by filter or analyzer.
c) Next token "away" and length of "away" = 4 has returned.
I think it's a general index flow.
But, I customized MyCustomFilter that filter generate query string,
not a token.
In the process, offset value has changed : query's length, not a
single token's length.
I wonder that value to be set up by offsetAttr.setOffset() method
has influence on search result on using solr?
(I tested this on main page's query input box at
http://localhost:8983/solr/admin/ )
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