| /* |
| * 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.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 org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator; |
| import org.apache.hyracks.algebricks.core.algebra.base.ILogicalPlan; |
| import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable; |
| import org.apache.hyracks.algebricks.core.algebra.properties.TypePropagationPolicy; |
| import org.apache.hyracks.algebricks.core.algebra.typing.ITypeEnvPointer; |
| import org.apache.hyracks.algebricks.core.algebra.typing.ITypingContext; |
| import org.apache.hyracks.algebricks.core.algebra.typing.OpRefTypeEnvPointer; |
| import org.apache.hyracks.algebricks.core.algebra.typing.PropagatingTypeEnvironment; |
| |
| 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; |
| } |
| |
| public int getNumberOfRoots() { |
| int n = 0; |
| for (ILogicalPlan p : nestedPlans) { |
| n += p.getRoots().size(); |
| } |
| return n; |
| } |
| |
| // |
| // @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; |
| } |
| |
| protected PropagatingTypeEnvironment createNestedPlansPropagatingTypeEnvironment(ITypingContext ctx, |
| boolean propagateInput) { |
| int n = 0; |
| for (ILogicalPlan p : nestedPlans) { |
| n += p.getRoots().size(); |
| } |
| |
| int i; |
| ITypeEnvPointer[] envPointers; |
| if (propagateInput) { |
| i = inputs.size(); |
| envPointers = new ITypeEnvPointer[n + i]; |
| for (int j = 0; j < i; j++) { |
| envPointers[j] = new OpRefTypeEnvPointer(inputs.get(j), ctx); |
| } |
| } else { |
| envPointers = new ITypeEnvPointer[n]; |
| i = 0; |
| } |
| for (ILogicalPlan p : nestedPlans) { |
| for (Mutable<ILogicalOperator> r : p.getRoots()) { |
| envPointers[i] = new OpRefTypeEnvPointer(r, ctx); |
| i++; |
| } |
| } |
| return new PropagatingTypeEnvironment(ctx.getExpressionTypeComputer(), ctx.getMissableTypeComputer(), |
| ctx.getMetadataProvider(), TypePropagationPolicy.ALL, envPointers); |
| } |
| |
| public abstract void getUsedVariablesExceptNestedPlans(Collection<LogicalVariable> vars); |
| |
| public abstract void getProducedVariablesExceptNestedPlans(Collection<LogicalVariable> vars); |
| } |