| /* |
| * 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.physical; |
| |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder.TargetConstraint; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext; |
| import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.core.utils.Pair; |
| import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor; |
| import edu.uci.ics.hyracks.api.job.JobSpecification; |
| |
| public abstract class AbstractExchangePOperator extends AbstractPhysicalOperator { |
| public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op, |
| IOperatorSchema opSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema) |
| throws AlgebricksException { |
| Pair<IConnectorDescriptor, TargetConstraint> connPair = createConnectorDescriptor(builder.getJobSpec(), op, |
| opSchema, context); |
| builder.contributeConnectorWithTargetConstraint(op, connPair.first, connPair.second); |
| ILogicalOperator src = op.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src, 0, op, 0); |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return false; |
| } |
| |
| public abstract Pair<IConnectorDescriptor, TargetConstraint> createConnectorDescriptor(JobSpecification spec, |
| ILogicalOperator op, IOperatorSchema opSchema, JobGenContext context) throws AlgebricksException; |
| } |