Package org.apache.torque.om.mapper
Class CompositeMapper
java.lang.Object
org.apache.torque.om.mapper.CompositeMapper
- All Implemented Interfaces:
Serializable,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:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidaddMapper(RecordMapper<?> mapper, int offset) Adds a new mapper to be applied to a result set.processRow(ResultSet resultSet, int offset, Criteria criteria) Maps the current row in the result Set by applying all known mappers and putting the result of each mapper in the result list.
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Constructor Details
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CompositeMapper
public CompositeMapper()
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Method Details
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addMapper
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.
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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:
processRowin interfaceRecordMapper<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.
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