content: /*
   *
   *  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.dinky.data.typehandler;
  
  import org.apache.ibatis.type.BaseTypeHandler;
  import org.apache.ibatis.type.JdbcType;
  
  import java.sql.CallableStatement;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  
  public abstract class AbstractJsonTypeHandler<T> extends BaseTypeHandler<T> {
  
      @Override
      public void setNonNullParameter(PreparedStatement ps, int i, T parameter, JdbcType jdbcType) throws SQLException {
          ps.setString(i, toJson(parameter));
      }
  
      @Override
      public T getNullableResult(ResultSet rs, String columnName) throws SQLException {
          String json = rs.getString(columnName);
          return parse(json);
      }
  
      @Override
      public T getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
          final String json = rs.getString(columnIndex);
          return parse(json);
      }
  
      @Override
      public T getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
          final String json = cs.getString(columnIndex);
          return parse(json);
      }
  
      protected abstract T parse(String json);
  
      protected abstract String toJson(T obj);
  }
  