/**
 * 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.common.logical.data;

import org.apache.drill.common.expression.FieldReference;
import org.apache.drill.common.expression.LogicalExpression;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;

@JsonPropertyOrder({"ref", "expr"})
public class NamedExpression {
  private final LogicalExpression expr;
  private final FieldReference ref;

  @JsonCreator
  public NamedExpression(@JsonProperty("expr") LogicalExpression expr, @JsonProperty("ref") FieldReference ref) {
    super();
    this.expr = expr;
    this.ref = ref;
  }

  public LogicalExpression getExpr() {
    return expr;
  }

  public FieldReference getRef() {
    return ref;
  }

  @Override
  public String toString() {
    return "NamedExpression [expr=" + expr + ", ref=" + ref + "]";
  }

}