[
https://issues.apache.org/jira/browse/LUCENE-4777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
André updated LUCENE-4777:
---------------------------
Description:
The method getRegexpQuery() in MultiFieldQueryParser is not overridden.
That leads to RegexpQueries where field=null (see example below).
{code}
QueryParser qp = new MultiFieldQueryParser(Version.LUCENE_41, new String[]{
"content" }, new StandardAnalyzer(Version.LUCENE_41))
Query q = qp.parse("path:foo/bar/foo"); // throws no ParseException
q.toString() // throws NPE
{code}
Workaround for MultiFieldQueryParser:
{code}
protected Query getRegexpQuery(String field, String termStr) throws
ParseException {
if (field == null) {
List<BooleanClause> clauses = new ArrayList<BooleanClause>();
for (int i = 0; i < fields.length; i++) {
clauses.add(new BooleanClause(getRegexpQuery(fields[i], termStr),
BooleanClause.Occur.SHOULD));
}
return getBooleanQuery(clauses, true);
}
return super.getRegexpQuery(field, termStr);
}
{code}
was:
The method getRegexpQuery() in MultiFieldQueryParser is not overridden.
That leads to RegexpQueries where field=null (see example below).
{code}
QueryParser qp = new MultiFieldQueryParser(Version.LUCENE_41, new String[]{
"content" }, new StandardAnalyzer(Version.LUCENE_41))
Query q = qp.parse("path:foo/bar/foo"); // throws no ParseException
q.toString() // throws NPE
{code}
Workaround for MultiFieldQueryParser:
{code}
protected Query _getRegexpQuery(String field, String termStr) throws
ParseException {
if (field == null) {
List<BooleanClause> clauses = new
ArrayList<BooleanClause>();
for (int i = 0; i < fields.length; i++) {
clauses.add(new BooleanClause(getRegexpQuery(fields[i],
termStr),
BooleanClause.Occur.SHOULD));
}
return getBooleanQuery(clauses, true);
}
return super.getRegexpQuery(field, termStr);
}
{code}
> NPE in MultiFieldQueryParser
> ----------------------------
>
> Key: LUCENE-4777
> URL: https://issues.apache.org/jira/browse/LUCENE-4777
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/queryparser
> Affects Versions: 4.1
> Reporter: André
>
> The method getRegexpQuery() in MultiFieldQueryParser is not overridden.
> That leads to RegexpQueries where field=null (see example below).
> {code}
> QueryParser qp = new MultiFieldQueryParser(Version.LUCENE_41, new String[]{
> "content" }, new StandardAnalyzer(Version.LUCENE_41))
> Query q = qp.parse("path:foo/bar/foo"); // throws no ParseException
> q.toString() // throws NPE
> {code}
> Workaround for MultiFieldQueryParser:
> {code}
> protected Query getRegexpQuery(String field, String termStr) throws
> ParseException {
> if (field == null) {
> List<BooleanClause> clauses = new ArrayList<BooleanClause>();
> for (int i = 0; i < fields.length; i++) {
> clauses.add(new BooleanClause(getRegexpQuery(fields[i], termStr),
> BooleanClause.Occur.SHOULD));
> }
> return getBooleanQuery(clauses, true);
> }
> return super.getRegexpQuery(field, termStr);
> }
> {code}
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