madrob commented on a change in pull request #1444:
URL: https://github.com/apache/lucene-solr/pull/1444#discussion_r413933007
##########
File path:
lucene/expressions/src/java/org/apache/lucene/expressions/SimpleBindings.java
##########
@@ -96,24 +90,51 @@ public DoubleValuesSource getDoubleValuesSource(String
name) {
case SCORE:
return DoubleValuesSource.SCORES;
default:
- throw new UnsupportedOperationException();
+ throw new UnsupportedOperationException();
}
}
- /**
- * Traverses the graph of bindings, checking there are no cycles or missing
references
- * @throws IllegalArgumentException if the bindings is inconsistent
+ @Override
+ public DoubleValuesSource getDoubleValuesSource(String name) {
+ if (map.containsKey(name) == false) {
Review comment:
Is `containsKey` boolean check more clear than `get` with a null check?
I think the latter is going to be more efficient because it's only a single map
operation, but I guess this way might be better for the JVM's escape analysis?
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