gsmiller commented on a change in pull request #138:
URL: https://github.com/apache/lucene/pull/138#discussion_r633758104
##########
File path: lucene/facet/src/java/org/apache/lucene/facet/DrillDownQuery.java
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@@ -170,11 +170,22 @@ private BooleanQuery getBooleanQuery() {
return bq.build();
}
- Query getBaseQuery() {
+ /**
+ * Returns the internal baseQuery of the DrillDownQuery
+ *
+ * @return The baseQuery used on initialization of DrillDownQuery
+ */
+ public Query getBaseQuery() {
return baseQuery;
}
- Query[] getDrillDownQueries() {
+ /**
+ * Returns the dimension queries added either via {@link #add(String,
Query)} or {@link
+ * #add(String, String...)}
+ *
+ * @return The array of dimQueries
+ */
+ public Query[] getDrillDownQueries() {
Query[] dimQueries = new Query[this.dimQueries.size()];
Review comment:
Got it. That makes sense @gautamworah96. In that case, what do you think
of caching the built queries and keeping track if they've been modified since
last being built? So `getDrillDownQueries` would first check a "dirty" status
and build the queries only if the boolean clauses have been modified since last
being built (or if they've never been built). This way repeated calls to
`getDrillDownQueries` wouldn't unnecessarily rebuild them. This isn't important
currently since the method is package-private and its use is tightly coupled
with `DrillSideways`, but if this is being made public, callers could
unknowingly be doing wasted work by calling this thing multiple times.
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