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java.lang.Objectorg.springframework.integration.context.IntegrationObjectSupport
org.springframework.integration.jdbc.JdbcPollingChannelAdapter
public class JdbcPollingChannelAdapter
A polling channel adapter that creates messages from the payload returned by executing a select query. Optionally an update can be executed after the select in order to update processed rows.
Field Summary |
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Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport |
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logger |
Constructor Summary | |
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JdbcPollingChannelAdapter(javax.sql.DataSource dataSource,
java.lang.String selectQuery)
Constructor taking DataSource from which the DB Connection can be
obtained and the select query to execute to retrieve new rows. |
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JdbcPollingChannelAdapter(JdbcOperations jdbcOperations,
java.lang.String selectQuery)
Constructor taking JdbcOperations instance to use for query
execution and the select query to execute to retrieve new rows. |
Method Summary | |
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protected java.util.List<?> |
doPoll(SqlParameterSource sqlQueryParameterSource)
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java.lang.String |
getComponentType()
Subclasses may implement this method to provide component type information. |
Message<java.lang.Object> |
receive()
Executes the query. |
void |
setMaxRowsPerPoll(int maxRows)
The maximum number of rows to pull out of the query results per poll (if greater than zero, otherwise all rows will be packed into the outgoing message). |
void |
setRowMapper(RowMapper<?> rowMapper)
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void |
setSelectSqlParameterSource(SqlParameterSource sqlQueryParameterSource)
A source of parameters for the select query used for polling. |
void |
setUpdatePerRow(boolean updatePerRow)
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void |
setUpdateSql(java.lang.String updateSql)
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void |
setUpdateSqlParameterSourceFactory(SqlParameterSourceFactory sqlParameterSourceFactory)
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Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport |
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afterPropertiesSet, getBeanFactory, getComponentName, getConversionService, getTaskScheduler, onInit, setBeanFactory, setBeanName, setComponentName, setConversionService, setTaskScheduler, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public JdbcPollingChannelAdapter(javax.sql.DataSource dataSource, java.lang.String selectQuery)
DataSource
from which the DB Connection can be
obtained and the select query to execute to retrieve new rows.
dataSource
- used to create a SimpleJdbcTemplate
selectQuery
- query to executepublic JdbcPollingChannelAdapter(JdbcOperations jdbcOperations, java.lang.String selectQuery)
JdbcOperations
instance to use for query
execution and the select query to execute to retrieve new rows.
jdbcOperations
- instance to use for query executionselectQuery
- query to executeMethod Detail |
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public void setRowMapper(RowMapper<?> rowMapper)
public void setUpdateSql(java.lang.String updateSql)
public void setUpdatePerRow(boolean updatePerRow)
public void setUpdateSqlParameterSourceFactory(SqlParameterSourceFactory sqlParameterSourceFactory)
public void setSelectSqlParameterSource(SqlParameterSource sqlQueryParameterSource)
sqlQueryParameterSource
- the sql query parameter source to setpublic void setMaxRowsPerPoll(int maxRows)
maxRows
- the max rows to setpublic Message<java.lang.Object> receive()
null
.
receive
in interface MessageSource<java.lang.Object>
protected java.util.List<?> doPoll(SqlParameterSource sqlQueryParameterSource)
public java.lang.String getComponentType()
IntegrationObjectSupport
getComponentType
in interface NamedComponent
getComponentType
in class IntegrationObjectSupport
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