org.apache.pig.newplan.logical.expression.ColumnExpression Maven / Gradle / Ivy
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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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pig.newplan.logical.expression;
import org.apache.pig.newplan.OperatorPlan;
/**
* Super class for all column expressions, including projection, constants, and deferences.
*
*/
public abstract class ColumnExpression extends LogicalExpression {
/**
*
* @param name of the operator
* @param plan LogicalExpressionPlan this column expression is part of
*/
public ColumnExpression(String name, OperatorPlan plan) {
super(name, plan);
}
}