How can i use multiple Boolean operators in a search query.?
For example , from the search text field , i usually get the queries which
looks like
Any (word or phrase) and ( a list of URI's)
example:: rice land http\://www.wtr.org/wordlist#c_2379
http\://www.wtr.org/wordlist#c_65748 http\://www.wtr.org/wordlist#c_7612
here the search term or phrase is = rice land
URIs are= http\://www.wtr.org/wordlist#c_2379
http\://www.wtr.org/wordlist#c_65748 http\://www.wtr.org/wordlist#c_7612
Now the way i want to build the Query is::
rice land AND ( http\://www.wtr.org/wordlist#c_2379 OR
http\://www.wtr.org/wordlist#c_65748 OR http\://www.wtr.org/wordlist#c_7612
)
i tried this-
try {
if (queryString != null && fields != null) {
PerFieldAnalyzerWrapper perFieldAnalyzer =
new PerFieldAnalyzerWrapper(analyzer);
perFieldAnalyzer.addAnalyzer("conceptURI", new
KeywordAnalyzer());
MultiFieldQueryParser mfqp = new MultiFieldQueryParser(
fields, perFieldAnalyzer);
if (queryString.contains("http") && !queryString.startsWith("http")) {
String orgQuery =queryString.substring(0, queryString.indexOf("http"));
String
uri=queryString.substring(queryString.indexOf("http"),
queryString.length());
uri = uri.trim();
String[] uris = uri.split(" ");
String tempUri="";
for (int i = 0; i < uris.length; i++) {
if(i== uris.length-1){
tempUri = tempUri +
uris[i];
}else {
tempUri = tempUri +
uris[i]+QueryParser.OR_OPERATOR;
}
}
query = mfqp.parse(orgQuery+ QueryParser.AND_OPERATOR+ tempUri );
is this is the correct way to form a Query..?? Are there any other
methods?
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