| /* |
| * 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.druid.query.filter; |
| |
| import org.apache.druid.query.monomorphicprocessing.CalledFromHotLoop; |
| import org.apache.druid.query.monomorphicprocessing.HotLoopCallee; |
| |
| /** |
| * An object that returns a boolean indicating if the "current" row should be selected or not. The most prominent use |
| * of this interface is that it is returned by the {@link Filter} "makeMatcher" method, where it is used to identify |
| * selected rows for filtered cursors and filtered aggregators. |
| * |
| * @see org.apache.druid.query.filter.vector.VectorValueMatcher, the vectorized version |
| */ |
| public interface ValueMatcher extends HotLoopCallee |
| { |
| @CalledFromHotLoop |
| boolean matches(); |
| } |