kodo.jdbc.kernel
Class AutoOrderUpdateManager

java.lang.Object
  org.apache.openjpa.jdbc.kernel.AbstractUpdateManager
      kodo.jdbc.kernel.AutoOrderUpdateManager

All Implemented Interfaces:

UpdateManager, Configurable

Direct Known Subclasses:

ConstraintUpdateManager, TableLockUpdateManager

public abstract class AutoOrderUpdateManager
extends AbstractUpdateManager

Base update manager for subclasses that order statements and batch statements when possible.

Nested Class Summary

protected static class

AutoOrderUpdateManager.SQLComparator Compares rows on their flush SQL.

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

AbstractUpdateManager.CustomMapping

Field Summary

protected boolean	batch
protected boolean	maxBatch
protected AutoOrderUpdateManager.SQLComparator	sqlComparator

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

conf, dict

Constructor Summary

AutoOrderUpdateManager()

Method Summary

protected void	flush(Collection rows, PreparedStatementManager psMgr) Flush the given collection of secondary rows.
boolean	getMaximizeBatchSize() Whether or not statements will be dynamically re-ordered to maximize batching.
protected PreparedStatementManager	newPreparedStatementManager(JDBCStore store, Connection conn)
void	setConfiguration(Configuration c)
void	setMaximizeBatchSize(boolean max) Whether or not statements will be dynamically re-ordered to maximize batching.

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.jdbc.kernel.UpdateManager

orderDirty

Field Detail

batch

protected boolean batch

maxBatch

protected boolean maxBatch

sqlComparator

protected AutoOrderUpdateManager.SQLComparator sqlComparator

Constructor Detail

AutoOrderUpdateManager

public AutoOrderUpdateManager()

Method Detail

getMaximizeBatchSize

public boolean getMaximizeBatchSize()

Whether or not statements will be dynamically re-ordered to maximize batching. When set to true, Kodo will automatically re-order SQL statements to maximize the amount of statement batching that can occur. When set to false, Kodo will do no reordering, but batching will still occur when it happens to do so.

setMaximizeBatchSize

public void setMaximizeBatchSize(boolean max)

Whether or not statements will be dynamically re-ordered to maximize batching. When set to true, Kodo will automatically re-order SQL statements to maximize the amount of statement batching that can occur. When set to false, Kodo will do no reordering, but batching will still occur when it happens to do so.

setConfiguration

public void setConfiguration(Configuration c)

Specified by:

setConfiguration in interface Configurable

Overrides:

setConfiguration in class AbstractUpdateManager

newPreparedStatementManager

protected PreparedStatementManager newPreparedStatementManager(JDBCStore store,
                                                               Connection conn)

Specified by:

newPreparedStatementManager in class AbstractUpdateManager

flush

protected void flush(Collection rows,
                     PreparedStatementManager psMgr)

Flush the given collection of secondary rows.