Class CacheJdbcStoreSessionListener
- java.lang.Object
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- org.apache.ignite.cache.store.jdbc.CacheJdbcStoreSessionListener
 
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- All Implemented Interfaces:
- CacheStoreSessionListener,- LifecycleAware
 
 public class CacheJdbcStoreSessionListener extends Object implements CacheStoreSessionListener, LifecycleAware Cache store session listener based on JDBC connection.For each session this listener gets a new JDBC connection from provided DataSourceand commits (or rolls back) it when session ends.The connection is saved as a store session attachment. The listener guarantees that the connection will be available for any store operation. If there is an ongoing cache transaction, all operations within this transaction will be committed or rolled back only when the session ends.As an example, here is how the CacheWriter.write(Cache.Entry)method can be implemented ifCacheJdbcStoreSessionListeneris configured:private static class Store extends CacheStoreAdapter<Integer, Integer> { @CacheStoreSessionResource private CacheStoreSession ses; @Override public void write(Cache.Entry<? extends Integer, ? extends Integer> entry) throws CacheWriterException { // Get connection from the current session. Connection conn = ses.attachment(); // Execute update SQL query. try { conn.createStatement().executeUpdate("..."); } catch (SQLException e) { throw new CacheWriterException("Failed to update the store.", e); } } }JDBC connection will be automatically created by the listener at the start of the session and closed when it ends.
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Constructor SummaryConstructors Constructor Description CacheJdbcStoreSessionListener()
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description DataSourcegetDataSource()Gets data source.voidonSessionEnd(CacheStoreSession ses, boolean commit)On session end callback.voidonSessionStart(CacheStoreSession ses)On session start callback.voidsetDataSource(DataSource dataSrc)Sets data source.voidstart()Starts grid component, called on grid start.voidstop()Stops grid component, called on grid shutdown.
 
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Method Detail- 
setDataSourcepublic void setDataSource(DataSource dataSrc) Sets data source.This is a required parameter. If data source is not set, exception will be thrown on startup. - Parameters:
- dataSrc- Data source.
 
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getDataSourcepublic DataSource getDataSource() Gets data source.- Returns:
- Data source.
 
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startpublic void start() throws IgniteExceptionStarts grid component, called on grid start.- Specified by:
- startin interface- LifecycleAware
- Throws:
- IgniteException- If failed.
 
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stoppublic void stop() throws IgniteExceptionStops grid component, called on grid shutdown.- Specified by:
- stopin interface- LifecycleAware
- Throws:
- IgniteException- If failed.
 
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onSessionStartpublic void onSessionStart(CacheStoreSession ses) On session start callback.Called before any store operation within a session is invoked. - Specified by:
- onSessionStartin interface- CacheStoreSessionListener
- Parameters:
- ses- Current session.
 
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onSessionEndpublic void onSessionEnd(CacheStoreSession ses, boolean commit) On session end callback.Called after all operations within a session are invoked. - Specified by:
- onSessionEndin interface- CacheStoreSessionListener
- Parameters:
- ses- Current session.
- commit-- Trueif persistence store transaction should commit,- falsefor rollback.
 
 
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