Package org.apache.cayenne.access.util

Class DoNothingOperationObserver

java.lang.Object

org.apache.cayenne.access.util.DoNothingOperationObserver

All Implemented Interfaces:

OperationHints, OperationObserver

public class DoNothingOperationObserver
extends Object
implements OperationObserver

A very simple observer that does nothing with provided data, and rethrows any reported exceptions. Can be used as a base superclass for custom observers.

Since:

4.0

Constructor Summary

Constructors

Constructor	Description
DoNothingOperationObserver()

Method Summary

Modifier and Type	Method	Description
boolean	isIteratedResult()	Returns true to indicate that any results of a select operation should be returned as a ResultIterator.
void	nextBatchCount(Query query, int[] resultCount)	Callback method invoked after a batch update is executed.
void	nextCount(Query query, int resultCount)	Callback method invoked after an updating query is executed.
void	nextGeneratedRows(Query query, ResultIterator<?> keys, List<ObjectId> idsToUpdate)	Callback method invoked after each batch of generated values is read during an update.
void	nextGlobalException(Exception ex)	Callback method invoked on exceptions that are not tied to a specific query execution, such as JDBC connection exceptions, etc.
void	nextQueryException(Query query, Exception ex)	Callback method invoked on exceptions that happen during an execution of a specific query.
void	nextRows(Query query, List<?> dataRows)	Callback method invoked for each processed ResultSet.
void	nextRows(Query q, ResultIterator<?> it)	Callback method invoked for each opened ResultIterator.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cayenne.access.OperationObserver

nextGeneratedRows

Constructor Detail

DoNothingOperationObserver

public DoNothingOperationObserver()

Method Detail

isIteratedResult

public boolean isIteratedResult()

Description copied from interface: OperationHints

Returns true to indicate that any results of a select operation should be returned as a ResultIterator. false is returned when the results are expected as a list.

Specified by:

isIteratedResult in interface OperationHints

nextCount

public void nextCount(Query query,
                      int resultCount)

Description copied from interface: OperationObserver

Callback method invoked after an updating query is executed.

Specified by:

nextCount in interface OperationObserver

nextBatchCount

public void nextBatchCount(Query query,
                           int[] resultCount)

Description copied from interface: OperationObserver

Callback method invoked after a batch update is executed.

Specified by:

nextBatchCount in interface OperationObserver

nextRows

public void nextRows(Query query,
                     List<?> dataRows)

Description copied from interface: OperationObserver

Callback method invoked for each processed ResultSet.

Specified by:

nextRows in interface OperationObserver

nextRows

public void nextRows(Query q,
                     ResultIterator<?> it)

Description copied from interface: OperationObserver

Callback method invoked for each opened ResultIterator. If this observer requested results to be returned as a ResultIterator, this method is invoked instead of OperationObserver.nextRows(Query, List).

Specified by:

nextRows in interface OperationObserver

nextGeneratedRows

public void nextGeneratedRows(Query query,
                              ResultIterator<?> keys,
                              List<ObjectId> idsToUpdate)

Description copied from interface: OperationObserver

Callback method invoked after each batch of generated values is read during an update.

Specified by:

nextGeneratedRows in interface OperationObserver

nextQueryException

public void nextQueryException(Query query,
                               Exception ex)

Description copied from interface: OperationObserver

Callback method invoked on exceptions that happen during an execution of a specific query.

Specified by:

nextQueryException in interface OperationObserver

nextGlobalException

public void nextGlobalException(Exception ex)

Description copied from interface: OperationObserver

Callback method invoked on exceptions that are not tied to a specific query execution, such as JDBC connection exceptions, etc.

Specified by:

nextGlobalException in interface OperationObserver