| /* |
| * 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.analytics.value; |
| |
| import org.apache.solr.analytics.facet.compare.FacetResultsComparator; |
| |
| /** |
| * A single-valued analytics value that can be compared and used to sort a facet. |
| */ |
| public interface ComparableValue extends AnalyticsValue { |
| /** |
| * Create an entry comparator used to sort the facet-value buckets of a facet. |
| * |
| * @param expression the name of the expression in the results array |
| * @return a comparator to sort the buckets with |
| */ |
| FacetResultsComparator getObjectComparator(String expression); |
| } |