org.apache.openjpa.jdbc.kernel
Class BatchingConstraintUpdateManager

java.lang.Object
  org.apache.openjpa.jdbc.kernel.AbstractUpdateManager
      org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager
          org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager

All Implemented Interfaces:

UpdateManager, Configurable

public class BatchingConstraintUpdateManager
extends ConstraintUpdateManager

Batch update manager that writes the SQL in object-level operation order. This update manager initiates a BatchPreparedStatementManagerImpl which will utilize the JDBC addBatch() and executeBatch() APIs to batch the statements for performance improvement.

This is the default plug-in class for UpdateManager to support statement batching. You can plug-in your own statement batch implementation through the following property:

   < property name="openjpa.jdbc.UpdateManager" 
     value="org.apache.openjpa.jdbc.kernel.YourOperationOrderUpdateManager" />   
 

Author:

Teresa Kan

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.openjpa.jdbc.kernel.AbstractUpdateManager

AbstractUpdateManager.CustomMapping

Field Summary

Fields inherited from class org.apache.openjpa.jdbc.kernel.AbstractUpdateManager

conf, dict

Constructor Summary

BatchingConstraintUpdateManager()

Method Summary

protected Collection	flush(RowManager rowMgr, PreparedStatementManager psMgr, Collection exceps) Flush all rows of the given row manager.
protected PreparedStatementManager	newPreparedStatementManager(JDBCStore store, Connection conn) Return a new PreparedStatementManager.

Methods inherited from class org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager

flush, flushGraph, newDepthFirstAnalysis, newRowManager, orderDirty

Methods inherited from class org.apache.openjpa.jdbc.kernel.AbstractUpdateManager

addException, delete, endConfiguration, flush, insert, populateRowManager, setConfiguration, startConfiguration, update, updateIndicators

Methods inherited from class java.lang.Object

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

Constructor Detail

BatchingConstraintUpdateManager

public BatchingConstraintUpdateManager()

Method Detail

newPreparedStatementManager

protected PreparedStatementManager newPreparedStatementManager(JDBCStore store,
                                                               Connection conn)

Description copied from class: AbstractUpdateManager

Return a new PreparedStatementManager.

Overrides:

newPreparedStatementManager in class ConstraintUpdateManager

flush

protected Collection flush(RowManager rowMgr,
                           PreparedStatementManager psMgr,
                           Collection exceps)

Description copied from class: AbstractUpdateManager

Flush all rows of the given row manager. Add exceptions to exceps (which may start as null) using AbstractUpdateManager.addException(java.util.Collection, java.lang.Exception). Return exceps.

Overrides:

flush in class ConstraintUpdateManager