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https://issues.apache.org/jira/browse/LUCENE-8845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16860689#comment-16860689
]
Alan Woodward commented on LUCENE-8845:
---------------------------------------
I can add the following:
{code}
diff --git
a/lucene/sandbox/src/java/org/apache/lucene/search/intervals/MultiTermIntervalsSource.java
b/lucene/sandbox/src/java/org/apache/lucene/search/intervals/MultiTermIntervalsSource.java
index 213ef730476..9c9b5f95c28 100644
---
a/lucene/sandbox/src/java/org/apache/lucene/search/intervals/MultiTermIntervalsSource.java
+++
b/lucene/sandbox/src/java/org/apache/lucene/search/intervals/MultiTermIntervalsSource.java
@@ -27,6 +27,7 @@ import java.util.Objects;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.Terms;
import org.apache.lucene.index.TermsEnum;
+import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.MatchesIterator;
import org.apache.lucene.search.MatchesUtils;
import org.apache.lucene.search.QueryVisitor;
@@ -41,6 +42,10 @@ class MultiTermIntervalsSource extends IntervalsSource {
MultiTermIntervalsSource(CompiledAutomaton automaton, int maxExpansions,
String pattern) {
this.automaton = automaton;
+ if (maxExpansions > BooleanQuery.getMaxClauseCount()) {
+ throw new IllegalArgumentException("maxExpansions [" + maxExpansions
+ + "] cannot be greater than BooleanQuery.getMaxClauseCount [" +
BooleanQuery.getMaxClauseCount() + "]");
+ }
this.maxExpansions = maxExpansions;
this.pattern = pattern;
}
{code}
> Allow maxExpansions to be set on multi-term Intervals
> -----------------------------------------------------
>
> Key: LUCENE-8845
> URL: https://issues.apache.org/jira/browse/LUCENE-8845
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Fix For: 8.2
>
> Attachments: LUCENE-8845.patch
>
>
> MultiTermIntervalsSource has a maxExpansions parameter which is always set to
> 128 by the factory methods Intervals.prefix() and Intervals.wildcard(). We
> should keep 128 as the default, but also add additional methods that take a
> configurable maximum.
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