Package com.randomnoun.common.spring

Class StructuredMapCallbackHandlerResultSetExtractor

java.lang.Object

com.randomnoun.common.spring.StructuredMapCallbackHandlerResultSetExtractor

All Implemented Interfaces:

org.springframework.jdbc.core.ResultSetExtractor<Object>

public class StructuredMapCallbackHandlerResultSetExtractor
extends Object
implements org.springframework.jdbc.core.ResultSetExtractor<Object>

A bit like a StructuredListResultSetExtractor, but executes a callback on each object, rather than returning List of them.

Author:

knoxg

See Also:

• StructuredListResultSetExtractor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	StructuredMapCallbackHandlerResultSetExtractor.StructuredMapCallbackHandler

Constructor Summary

Constructors

Constructor	Description
StructuredMapCallbackHandlerResultSetExtractor(org.springframework.jdbc.core.JdbcTemplate jt, String mappings, StructuredMapCallbackHandlerResultSetExtractor.StructuredMapCallbackHandler smch)	Create a new RowMapperResultReader.

Method Summary

Modifier and Type	Method	Description
Object	extractData(ResultSet rs)	Required to support ResultSetExtractor interface
void	processRow(ResultSet rs)	Used by the ResultReader interface to process a single row from the database.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StructuredMapCallbackHandlerResultSetExtractor

public StructuredMapCallbackHandlerResultSetExtractor(org.springframework.jdbc.core.JdbcTemplate jt,
 String mappings,
 StructuredMapCallbackHandlerResultSetExtractor.StructuredMapCallbackHandler smch)

Create a new RowMapperResultReader.

Parameters:

jt - jdbcTemplate for some reason

Method Details

extractData

public Object extractData(ResultSet rs)
                   throws SQLException,
org.springframework.dao.DataAccessException

Required to support ResultSetExtractor interface

Specified by:

extractData in interface org.springframework.jdbc.core.ResultSetExtractor<Object>

Parameters:

rs - resultSet to process

Returns:

null

Throws:

SQLException

org.springframework.dao.DataAccessException

processRow

public void processRow(ResultSet rs)
                throws SQLException

Used by the ResultReader interface to process a single row from the database.

The row is read and matched against the 'levels' specified in the object constructor. As values change, tree branches are created in the returned structured List.

Throws:

SQLException

See Also:

• RowCallbackHandler.processRow(java.sql.ResultSet)