content: /*
   * Copyright 1999-2017 Alibaba Group Holding Ltd.
   *
   * 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.druid.sql.ast.expr;
  
  import com.alibaba.druid.sql.ast.SQLExprImpl;
  
  import java.util.Collections;
  import java.util.List;
  
  public abstract class SQLTextLiteralExpr extends SQLExprImpl implements SQLLiteralExpr {
      protected String text;
  
      public SQLTextLiteralExpr() {
      }
  
      public SQLTextLiteralExpr(String text) {
          this.text = text;
      }
  
      public String getText() {
          return this.text;
      }
  
      public void setText(String text) {
          this.text = text;
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + ((text == null) ? 0 : text.hashCode());
          return result;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
          if (obj == null) {
              return false;
          }
          if (getClass() != obj.getClass()) {
              return false;
          }
          SQLTextLiteralExpr other = (SQLTextLiteralExpr) obj;
          if (text == null) {
              if (other.text != null) {
                  return false;
              }
          } else if (!text.equals(other.text)) {
              return false;
          }
          return true;
      }
  
      public abstract SQLTextLiteralExpr clone();
  
      @Override
      public List getChildren() {
          return Collections.emptyList();
      }
  }
  