本文整理匯總了Java中org.apache.lucene.index.TermsEnum.term方法的典型用法代碼示例。如果您正苦於以下問題：Java TermsEnum.term方法的具體用法？Java TermsEnum.term怎麽用？Java TermsEnum.term使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.lucene.index.TermsEnum的用法示例。
在下文中一共展示了TermsEnum.term方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: getPrefixTerms
import org.apache.lucene.index.TermsEnum; //導入方法依賴的package包/類
private void getPrefixTerms(ObjectHashSet<Term> terms, final Term prefix, final IndexReader reader) throws IOException {
// SlowCompositeReaderWrapper could be used... but this would merge all terms from each segment into one terms
// instance, which is very expensive. Therefore I think it is better to iterate over each leaf individually.
List<LeafReaderContext> leaves = reader.leaves();
for (LeafReaderContext leaf : leaves) {
Terms _terms = leaf.reader().terms(field);
if (_terms == null) {
continue;
}
TermsEnum termsEnum = _terms.iterator();
TermsEnum.SeekStatus seekStatus = termsEnum.seekCeil(prefix.bytes());
if (TermsEnum.SeekStatus.END == seekStatus) {
continue;
}
for (BytesRef term = termsEnum.term(); term != null; term = termsEnum.next()) {
if (!StringHelper.startsWith(term, prefix.bytes())) {
break;
}
terms.add(new Term(field, BytesRef.deepCopyOf(term)));
if (terms.size() >= maxExpansions) {
return;
}
}
}
}
示例2: visitMatchingTerms
import org.apache.lucene.index.TermsEnum; //導入方法依賴的package包/類
@Override
public void visitMatchingTerms(
IndexReader reader,
String fieldName,
MatchingTermVisitor mtv) throws IOException
{
int prefixLength = prefix.length();
Terms terms = MultiFields.getTerms(reader, fieldName);
if (terms != null) {
Matcher matcher = pattern.matcher("");
try {
TermsEnum termsEnum = terms.iterator(null);
TermsEnum.SeekStatus status = termsEnum.seekCeil(prefixRef);
BytesRef text;
if (status == TermsEnum.SeekStatus.FOUND) {
text = prefixRef;
} else if (status == TermsEnum.SeekStatus.NOT_FOUND) {
text = termsEnum.term();
} else {
text = null;
}
while(text != null) {
if (text != null && StringHelper.startsWith(text, prefixRef)) {
String textString = text.utf8ToString();
matcher.reset(textString.substring(prefixLength));
if (matcher.matches()) {
mtv.visitMatchingTerm(new Term(fieldName, textString));
}
} else {
break;
}
text = termsEnum.next();
}
} finally {
matcher.reset();
}
}
}
示例3: getTermStatistics
import org.apache.lucene.index.TermsEnum; //導入方法依賴的package包/類
private TermStatistics getTermStatistics(TermsEnum termsEnum, Term term) throws IOException {
if (dfs != null) {
return dfs.termStatistics().get(term);
}
return new TermStatistics(termsEnum.term(), termsEnum.docFreq(), termsEnum.totalTermFreq());
}