/**
* 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.logical;
import java.util.List;
import org.apache.drill.common.logical.data.Filter;
import org.apache.drill.common.logical.data.LogicalOperator;
import org.apache.drill.exec.planner.common.DrillFilterRelBase;
import org.apache.drill.exec.planner.torel.ConversionContext;
import org.eigenbase.rel.InvalidRelException;
import org.eigenbase.rel.RelNode;
import org.eigenbase.relopt.RelOptCluster;
import org.eigenbase.relopt.RelTraitSet;
import org.eigenbase.rex.RexNode;
public class DrillFilterRel extends DrillFilterRelBase implements DrillRel {
protected DrillFilterRel(RelOptCluster cluster, RelTraitSet traits, RelNode child, RexNode condition) {
super(DRILL_LOGICAL, cluster, traits, child, condition);
}
@Override
public RelNode copy(RelTraitSet traitSet, List<RelNode> inputs) {
return new DrillFilterRel(getCluster(), traitSet, sole(inputs), getCondition());
}
@Override
public LogicalOperator implement(DrillImplementor implementor) {
final LogicalOperator input = implementor.visitChild(this, 0, getChild());
Filter f = new Filter(getFilterExpression(implementor.getContext()));
f.setInput(input);
return f;
}
public static DrillFilterRel convert(Filter filter, ConversionContext context) throws InvalidRelException{
RelNode input = context.toRel(filter.getInput());
return new DrillFilterRel(context.getCluster(), context.getLogicalTraits(), input, context.toRex(filter.getExpr()));
}
}