content: /*
   * Copyright 2020 Alibaba Group Holding Limited.
   *
   * Licensed 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 com.alibaba.graphscope.common.intermediate;
  
  public class ArgVariable {
      private final String tagName;
      private final String propertyName;
  
      public ArgVariable(String tagName, String propertyName) {
          this.tagName = tagName;
          this.propertyName = propertyName;
      }
  
      @Override
      public String toString() {
          return (propertyName == null || propertyName.isEmpty())
                  ? "@" + tagName
                  : "@" + tagName + "." + propertyName;
      }
  }
  