/**
* 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.tajo.engine.planner.logical;
import com.google.gson.annotations.Expose;
import org.apache.tajo.engine.planner.PlanString;
import org.apache.tajo.engine.planner.Target;
import org.apache.tajo.util.TUtil;
public class EvalExprNode extends LogicalNode implements Projectable {
@Expose private Target[] exprs;
public EvalExprNode(int pid) {
super(pid, NodeType.EXPRS);
}
@Override
public boolean hasTargets() {
return true;
}
@Override
public void setTargets(Target[] targets) {
this.exprs = targets;
}
@Override
public Target[] getTargets() {
return exprs;
}
public Target[] getExprs() {
return this.exprs;
}
@Override
public String toString() {
return "EvalExprNode (" + TUtil.arrayToString(exprs) + ")";
}
public boolean equals(Object object) {
if (object instanceof EvalExprNode) {
EvalExprNode other = (EvalExprNode) object;
return TUtil.checkEquals(this.exprs, other.exprs);
} else {
return false;
}
}
@Override
public void preOrder(LogicalNodeVisitor visitor) {
// nothing
}
@Override
public void postOrder(LogicalNodeVisitor visitor) {
// nothing
}
@Override
public PlanString getPlanString() {
return null;
}
}