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   *   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
   *
   *    https://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.cayenne.access.types;
  
  import java.sql.CallableStatement;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  
  /**
   * @since 3.0
   */
  public class DoubleType implements ExtendedType<Double> {
  
      @Override
      public String getClassName() {
          return Double.class.getName();
      }
  
      @Override
      public Double materializeObject(ResultSet rs, int index, int type) throws Exception {
          double d = rs.getDouble(index);
          return rs.wasNull() ? null : d;
      }
  
      @Override
      public Double materializeObject(CallableStatement rs, int index, int type) throws Exception {
          double d = rs.getDouble(index);
          return rs.wasNull() ? null : d;
      }
  
      @Override
      public void setJdbcObject(
              PreparedStatement statement,
              Double value,
              int pos,
              int type,
              int scale) throws Exception {
  
          if (value == null) {
              statement.setNull(pos, type);
          } else {
              statement.setDouble(pos, value);
          }
      }
  
      @Override
      public String toString(Double value) {
          if (value == null) {
              return "NULL";
          }
  
          return value.toString();
      }
  }
  