| package org.apache.rya.api.persist; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.List; |
| |
| import org.apache.rya.api.RdfCloudTripleStoreConfiguration; |
| import org.eclipse.rdf4j.model.Resource; |
| import org.eclipse.rdf4j.model.Value; |
| |
| /** |
| * Class RdfEvalStatsDAO |
| * Date: Feb 28, 2012 |
| * Time: 4:17:05 PM |
| */ |
| public interface RdfEvalStatsDAO<C extends RdfCloudTripleStoreConfiguration> { |
| public enum CARDINALITY_OF { |
| SUBJECT, PREDICATE, OBJECT, SUBJECTPREDICATE, SUBJECTOBJECT, PREDICATEOBJECT |
| } |
| |
| public void init() throws RdfDAOException; |
| |
| public boolean isInitialized() throws RdfDAOException; |
| |
| public void destroy() throws RdfDAOException; |
| |
| // XXX returns -1 if no cardinality could be found. |
| public double getCardinality(C conf, CARDINALITY_OF card, List<Value> val) throws RdfDAOException; |
| public double getCardinality(C conf, CARDINALITY_OF card, List<Value> val, Resource context) throws RdfDAOException; |
| |
| public void setConf(C conf); |
| |
| public C getConf(); |
| |
| } |