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.SQLDataType;
  
  import java.util.Collections;
  import java.util.List;
  
  public abstract class SQLNumericLiteralExpr extends SQLTypeExpr {
      public SQLNumericLiteralExpr(SQLDataType sqlDataType) {
          super(sqlDataType);
      }
  
      public abstract Number getNumber();
  
      public abstract void setNumber(Number number);
  
      public abstract SQLNumericLiteralExpr clone();
  
      @Override
      public List getChildren() {
          return Collections.emptyList();
      }
  }
  