| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.commons.lang3.mutable.Mutable; |
| |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable; |
| |
| public abstract class AbstractOperatorWithNestedPlans extends AbstractLogicalOperator { |
| protected final List<ILogicalPlan> nestedPlans; |
| |
| public AbstractOperatorWithNestedPlans() { |
| nestedPlans = new ArrayList<ILogicalPlan>(); |
| } |
| |
| public AbstractOperatorWithNestedPlans(List<ILogicalPlan> nestedPlans) { |
| this.nestedPlans = nestedPlans; |
| } |
| |
| public List<ILogicalPlan> getNestedPlans() { |
| return nestedPlans; |
| } |
| |
| @Override |
| public boolean hasNestedPlans() { |
| return true; |
| } |
| |
| public LinkedList<Mutable<ILogicalOperator>> allRootsInReverseOrder() { |
| LinkedList<Mutable<ILogicalOperator>> allRoots = new LinkedList<Mutable<ILogicalOperator>>(); |
| for (ILogicalPlan p : nestedPlans) { |
| for (Mutable<ILogicalOperator> r : p.getRoots()) { |
| allRoots.addFirst(r); |
| } |
| } |
| return allRoots; |
| } |
| |
| // |
| // @Override |
| // public void computeConstraintsAndEquivClasses() { |
| // for (ILogicalPlan p : nestedPlans) { |
| // for (LogicalOperatorReference r : p.getRoots()) { |
| // AbstractLogicalOperator op = (AbstractLogicalOperator) r.getOperator(); |
| // equivalenceClasses.putAll(op.getEquivalenceClasses()); |
| // functionalDependencies.addAll(op.getFDs()); |
| // } |
| // } |
| // } |
| |
| @Override |
| public void recomputeSchema() { |
| schema = new ArrayList<LogicalVariable>(); |
| schema.addAll(inputs.get(0).getValue().getSchema()); |
| for (ILogicalPlan p : nestedPlans) { |
| for (Mutable<ILogicalOperator> r : p.getRoots()) { |
| schema.addAll(r.getValue().getSchema()); |
| } |
| } |
| } |
| |
| @Override |
| public boolean isMap() { |
| return false; |
| } |
| |
| public abstract void getUsedVariablesExceptNestedPlans(Collection<LogicalVariable> vars); |
| |
| public abstract void getProducedVariablesExceptNestedPlans(Collection<LogicalVariable> vars); |
| |
| } |