org.springframework.integration.jdbc
Class JdbcMessageHandler

java.lang.Object
  org.springframework.integration.context.IntegrationObjectSupport
      org.springframework.integration.handler.AbstractMessageHandler
          org.springframework.integration.jdbc.JdbcMessageHandler

All Implemented Interfaces:

BeanFactoryAware, BeanNameAware, InitializingBean, Ordered, NamedComponent, MessageHandler, TrackableComponent

public class JdbcMessageHandler
extends AbstractMessageHandler

A message handler that executes an SQL update. Dynamic query parameters are supported through the SqlParameterSourceFactory abstraction, the default implementation of which wraps the message so that its bean properties can be referred to by name in the query string E.g.

 INSERT INTO FOOS (MESSAGE_ID, PAYLOAD) VALUES (:headers[$id], :payload)
 

N.B. do not use quotes to escape the header keys. The default SQL parameter source (from Spring JDBC) can also handle headers with dotted names (e.g. business.id)

Since:

2.0

Author:

Dave Syer

Field Summary

Fields inherited from class org.springframework.integration.handler.AbstractMessageHandler

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

JdbcMessageHandler(DataSource dataSource, String updateSql)
Constructor taking DataSource from which the DB Connection can be obtained and the select query to execute to retrieve new rows.

JdbcMessageHandler(JdbcOperations jdbcOperations, String updateSql)
Constructor taking JdbcOperations instance to use for query execution and the select query to execute to retrieve new rows.

Method Summary

protected List<? extends Map<String,Object>>	executeUpdateQuery(Object obj, boolean keysGenerated)
protected void	handleMessageInternal(Message<?> message) Executes the update, passing the message into the SqlParameterSourceFactory.
void	setKeysGenerated(boolean keysGenerated) Flag to indicate that the update query is an insert with autogenerated keys, which will be logged at debug level.
void	setSqlParameterSourceFactory(SqlParameterSourceFactory sqlParameterSourceFactory)
void	setUpdateSql(String updateSql)

Methods inherited from class org.springframework.integration.handler.AbstractMessageHandler

getComponentType, getOrder, handleMessage, setOrder, setShouldTrack

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, getBeanFactory, getComponentName, getConversionService, getRequiredMetadataPersister, getTaskScheduler, onInit, setBeanFactory, setBeanName, setComponentName, setConversionService, setTaskScheduler, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.integration.context.NamedComponent

getComponentName

Constructor Detail

JdbcMessageHandler

public JdbcMessageHandler(DataSource dataSource,
                          String updateSql)

Constructor taking DataSource from which the DB Connection can be obtained and the select query to execute to retrieve new rows.

Parameters:

dataSource - used to create a SimpleJdbcTemplate

updateSql - query to execute

JdbcMessageHandler

public JdbcMessageHandler(JdbcOperations jdbcOperations,
                          String updateSql)

Constructor taking JdbcOperations instance to use for query execution and the select query to execute to retrieve new rows.

Parameters:

jdbcOperations - instance to use for query execution

updateSql - query to execute

Method Detail

setKeysGenerated

public void setKeysGenerated(boolean keysGenerated)

Flag to indicate that the update query is an insert with autogenerated keys, which will be logged at debug level.

Parameters:

keysGenerated - the flag value to set

setUpdateSql

public void setUpdateSql(String updateSql)

setSqlParameterSourceFactory

public void setSqlParameterSourceFactory(SqlParameterSourceFactory sqlParameterSourceFactory)

handleMessageInternal

protected void handleMessageInternal(Message<?> message)
                              throws MessageRejectedException,
                                     MessageHandlingException,
                                     MessageDeliveryException

Executes the update, passing the message into the SqlParameterSourceFactory.

Specified by:

handleMessageInternal in class AbstractMessageHandler

Throws:

MessageRejectedException

MessageHandlingException

MessageDeliveryException

executeUpdateQuery

protected List<? extends Map<String,Object>> executeUpdateQuery(Object obj,
                                                                boolean keysGenerated)