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/*
* 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.drill.exec.planner.physical;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.physical.config.ComplexToJson;
import org.apache.drill.exec.planner.physical.visitor.PrelVisitor;
import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.SingleRel;
import org.apache.calcite.plan.RelTraitSet;
public class ComplexToJsonPrel extends SingleRel implements Prel {
public ComplexToJsonPrel(Prel phyRelNode) {
super(phyRelNode.getCluster(), phyRelNode.getTraitSet(), phyRelNode);
}
@Override
public final RelNode copy(RelTraitSet traitSet, List<RelNode> inputs) {
return new ComplexToJsonPrel((Prel) sole(inputs));
}
@Override
public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator) throws IOException {
ComplexToJson p = new ComplexToJson(((Prel) getInput()).getPhysicalOperator(creator));
return creator.addMetadata(this, p);
}
@Override
public Iterator<Prel> iterator() {
return PrelUtil.iter(getInput());
}
@Override
public SelectionVectorMode[] getSupportedEncodings() {
return SelectionVectorMode.DEFAULT;
}
@Override
public SelectionVectorMode getEncoding() {
return SelectionVectorMode.NONE;
}
@Override
public <T, X, E extends Throwable> T accept(PrelVisitor<T, X, E> logicalVisitor, X value) throws E {
return logicalVisitor.visitPrel(this, value);
}
@Override
public boolean needsFinalColumnReordering() {
return true;
}
}
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