Class CompositeMapper

java.lang.Object
org.apache.torque.om.mapper.CompositeMapper
All Implemented Interfaces:
Serializable, RecordMapper<List<Object>>

public class CompositeMapper extends Object implements RecordMapper<List<Object>>
Uses a list of mappers to map a database record to a list of objects.
Version:
$Id: CompositeMapper.java 1840416 2018-09-09 15:10:22Z tv $
See Also:
  • Constructor Details

    • CompositeMapper

      public CompositeMapper()
  • Method Details

    • addMapper

      public void addMapper(RecordMapper<?> mapper, int offset)
      Adds a new mapper to be applied to a result set.
      Parameters:
      mapper - the mapper.
      offset - the offset of the mapper within this mapper, 0 based.
    • processRow

      public List<Object> processRow(ResultSet resultSet, int offset, Criteria criteria) throws TorqueException
      Maps the current row in the result Set by applying all known mappers and putting the result of each mapper in the result list.
      Specified by:
      processRow in interface RecordMapper<List<Object>>
      Parameters:
      resultSet - the result set to map, not null.
      offset - the total column offset of this mapper within the result set.
      criteria - The criteria which created the result set, or null if not known. This parameter is not used by this record mapper.
      Returns:
      a list of mapped objects in the same order as the mappers were ordered, not null.
      Throws:
      TorqueException - when the mapping fails.