/**
* 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.eval.EvalNode;
import org.apache.tajo.engine.planner.PlanString;
public class SelectionNode extends UnaryNode implements Cloneable {
@Expose private EvalNode qual;
public SelectionNode(int pid, EvalNode qual) {
super(pid, NodeType.SELECTION);
setQual(qual);
}
public EvalNode getQual() {
return this.qual;
}
public void setQual(EvalNode qual) {
this.qual = qual;
}
@Override
public PlanString getPlanString() {
PlanString planStr = new PlanString("Filter");
planStr.addExplan("Search Cond: " + getQual());
return planStr;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof SelectionNode) {
SelectionNode other = (SelectionNode) obj;
return super.equals(other)
&& this.qual.equals(other.qual)
&& child.equals(other.child);
} else {
return false;
}
}
@Override
public Object clone() throws CloneNotSupportedException {
SelectionNode selNode = (SelectionNode) super.clone();
selNode.qual = (EvalNode) this.qual.clone();
return selNode;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("\"Selection\": {\"qual\": \"").append(qual.toString()).append("\",");
sb.append("\n \"out schema\": ").append(getOutSchema()).append(",");
sb.append("\n \"in schema\": ").append(getInSchema()).append("}");
return sb.toString()+"\n"
+ getChild().toString();
}
}