本文整理匯總了Java中org.apache.lucene.index.TermsEnum.SeekStatus方法的典型用法代碼示例。如果您正苦於以下問題：Java TermsEnum.SeekStatus方法的具體用法？Java TermsEnum.SeekStatus怎麽用？Java TermsEnum.SeekStatus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.SeekStatus方法的4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: 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
{
/* check term presence in index here for symmetry with other SimpleTerm's */
Terms terms = MultiFields.getTerms(reader, fieldName);
if (terms != null) {
TermsEnum termsEnum = terms.iterator(null);
TermsEnum.SeekStatus status = termsEnum.seekCeil(new BytesRef(getTermText()));
if (status == TermsEnum.SeekStatus.FOUND) {
mtv.visitMatchingTerm(getLuceneTerm(fieldName));
}
}
}
示例2: 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3: 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4: 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
{
/* inspired by PrefixQuery.rewrite(): */
Terms terms = MultiFields.getTerms(reader, fieldName);
if (terms != null) {
TermsEnum termsEnum = terms.iterator(null);
boolean skip = false;
TermsEnum.SeekStatus status = termsEnum.seekCeil(new BytesRef(getPrefix()));
if (status == TermsEnum.SeekStatus.FOUND) {
mtv.visitMatchingTerm(getLucenePrefixTerm(fieldName));
} else if (status == TermsEnum.SeekStatus.NOT_FOUND) {
if (StringHelper.startsWith(termsEnum.term(), prefixRef)) {
mtv.visitMatchingTerm(new Term(fieldName, termsEnum.term().utf8ToString()));
} else {
skip = true;
}
} else {
// EOF
skip = true;
}
if (!skip) {
while(true) {
BytesRef text = termsEnum.next();
if (text != null && StringHelper.startsWith(text, prefixRef)) {
mtv.visitMatchingTerm(new Term(fieldName, text.utf8ToString()));
} else {
break;
}
}
}
}
}