risdenk commented on code in PR #1184: URL: https://github.com/apache/solr/pull/1184#discussion_r1028485479
########## solr/core/src/java/org/apache/solr/search/MutableBitDocSet.java: ########## @@ -0,0 +1,103 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.solr.search; + +import org.apache.lucene.util.FixedBitSet; + +/** + * A {@link BitDocSet} based implementation that mutates the underlying bits for andNot and + * intersection. This allows for computing the combinations of sets without duplicating the + * underlying array. This MutableBitDocSet should not be cached because it can be modified. + * + * @since solr 9.2 + */ +class MutableBitDocSet extends BitDocSet { + private MutableBitDocSet(FixedBitSet bits) { + super(bits); + } + + /** + * Returns a mutable BitDocSet that is a copy of the provided BitDocSet. + * + * @param bitDocSet a BitDocSet + * @return copy of bitDocSet that is now mutable + */ + public static MutableBitDocSet fromBitDocSet(BitDocSet bitDocSet) { + return new MutableBitDocSet(bitDocSet.getFixedBitSetClone()); + } + + /** + * Returns a new BitDocSet with the same bits if the DocSet provided is a MutableBitDocSet. + * Otherwise, just returns the provided DocSet. + * + * @param docSet DocSet to unwrap if it is a MutableBitDocSet + * @return Unwrapped DocSet that is not mutable + */ + public static DocSet unwrapIfMutable(DocSet docSet) { + if (docSet instanceof MutableBitDocSet) { + return new BitDocSet(((MutableBitDocSet) docSet).getBits()); + } + return docSet; + } + + /** + * Returns the documents in this set that are not in the other set. This mutates the underlying + * bits so do not cache the returned bitset. + * + * @return a DocSet representing this AND NOT other + */ + @Override + public DocSet andNot(DocSet other) { + if (other instanceof BitDocSet) { + bits.andNot(((BitDocSet) other).bits); + } else { + DocIterator iter = other.iterator(); Review Comment: Fixed in 26754f8e2f8db5ad6a5535eb10cb73d43d4739d3 ########## solr/core/src/java/org/apache/solr/search/MutableBitDocSet.java: ########## @@ -0,0 +1,103 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.solr.search; + +import org.apache.lucene.util.FixedBitSet; + +/** + * A {@link BitDocSet} based implementation that mutates the underlying bits for andNot and + * intersection. This allows for computing the combinations of sets without duplicating the + * underlying array. This MutableBitDocSet should not be cached because it can be modified. Review Comment: Fixed in e4c92289514e91bfdefb727437f6e2a042e0577e -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
