/*
* Copyright (c) 2011-2015 EPFL DATA Laboratory
* Copyright (c) 2014-2015 The Squall Collaboration (see NOTICE)
*
* All rights reserved.
*
* Licensed 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 ch.epfl.data.squall.components.hyper_cube;
import ch.epfl.data.squall.components.Component;
import ch.epfl.data.squall.predicates.Predicate;
import ch.epfl.data.squall.types.Type;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.List;
import java.util.LinkedList;
public class HyperCubeJoinComponentFactory {
private Map<String, Predicate> joinPredicate;
private Component[] parents;
private List<Component> _relations = new LinkedList<Component>();
private Map<String, Type[]> _relColTypes = new HashMap<String, Type[]>();
private Map<String, String[]> _relColNames = new HashMap<String, String[]>();
private Set<String> _randomColumns = new HashSet<String>();
public void addRelation(Component relation, Type... types) {
_relations.add(relation);
_relColTypes.put(relation.getName(), types);
}
public void addRelation(Component relation, Type[] types, String[] columnNames) {
_relColNames.put(relation.getName(), columnNames);
addRelation(relation, types);
}
public void addRelation(Component relation,
Type[] types, String[] columnNames, int[] randomColumns) {
for(int i : randomColumns) {
_randomColumns.add(columnNames[i]);
}
_relColNames.put(relation.getName(), columnNames);
addRelation(relation, types);
}
public HyperCubeJoinComponentFactory(Component[] parents) {
this.parents = parents;
this.joinPredicate = new HashMap<String, Predicate>();
}
public void addPredicate(String key, Predicate pred) {
joinPredicate.put(key, pred);
}
public HyperCubeJoinComponent createHyperCubeJoinOperator() {
return new HyperCubeJoinComponent(parents, joinPredicate,
_relColTypes, _relColNames, _randomColumns);
}
}