java - Lucene TextField not tokenized -


i saving following title index

doc.add(new textfield(title, "button",field.store.yes ));

then when search "butto", nothing returns. must search "button" back. have substring of button gives result? using 

 standardanalyzer analyzer = new standardanalyzer();

the standardanalyzer creates token button input text , so, query button matches document. search substring of button, have 2 options.

at search-time, can use different query, e.g. prefixquery or wildcardquery. if use query parser, can use butto? or butto*.

at index-time, can use different analyzer, emits substrings tokens, example edgengramtokenizer emit [bu, but, butt, butto, button] based on configuration; or ngramtokenizer, emit [bu, ut, tt, to, on] , on configured size(s).


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