er.extensions.jdbc
Class ERXJDBCAdaptor.Channel

java.lang.Object
  com.webobjects.eoaccess.EOAdaptorChannel
      com.webobjects.jdbcadaptor.JDBCChannel
          er.extensions.jdbc.ERXJDBCAdaptor.Channel

Enclosing class:

ERXJDBCAdaptor

public static class ERXJDBCAdaptor.Channel
extends com.webobjects.jdbcadaptor.JDBCChannel

Channel subclass to support notification posting.

Author:

ak

Nested Class Summary

Nested classes/interfaces inherited from class com.webobjects.eoaccess.EOAdaptorChannel

com.webobjects.eoaccess.EOAdaptorChannel.Delegate

Field Summary

Fields inherited from class com.webobjects.jdbcadaptor.JDBCChannel

_attributes, _fetchColumnCount, _isOpen, _resultSet, _rowsProcessedCount, _rowsUpdateCount, _selectedColumns, _statement, _storedProcedureBindings

Fields inherited from class com.webobjects.eoaccess.EOAdaptorChannel

_context, _debug, _delegate, _delegateRespondsTo_didChangeResultSet, _delegateRespondsTo_didEvaluateExpression, _delegateRespondsTo_didExecuteStoredProcedure, _delegateRespondsTo_didFetchRow, _delegateRespondsTo_didFinishFetching, _delegateRespondsTo_didPerformOperations, _delegateRespondsTo_didSelectAttributes, _delegateRespondsTo_shouldConstructStoredProcedureReturnValues, _delegateRespondsTo_shouldEvaluateExpression, _delegateRespondsTo_shouldExecuteStoredProcedure, _delegateRespondsTo_shouldReturnValuesForStoredProcedure, _delegateRespondsTo_shouldSelectAttributes, _delegateRespondsTo_willFetchRow, _delegateRespondsTo_willPerformOperations, _rawAttributesCache, _rawDictionaryInitializer, AdaptorFailureKey, AdaptorOperationsKey, AdaptorOptimisticLockingFailure, FailedAdaptorOperationKey

Constructor Summary

ERXJDBCAdaptor.Channel(com.webobjects.jdbcadaptor.JDBCContext jdbccontext)

Method Summary

int	deleteRowsDescribedByQualifier(com.webobjects.eocontrol.EOQualifier eoqualifier, com.webobjects.eoaccess.EOEntity eoentity) Overridden to clean up after a transaction fails.
void	evaluateExpression(com.webobjects.eoaccess.EOSQLExpression eosqlexpression) Overridden to clean up after a transaction fails.
void	executeStoredProcedure(com.webobjects.eoaccess.EOStoredProcedure eostoredprocedure, com.webobjects.foundation.NSDictionary nsdictionary) Overridden to clean up after a transaction fails.
void	performAdaptorOperations(com.webobjects.foundation.NSArray ops) Overridden to post a notification when the operations were performed.
com.webobjects.foundation.NSArray	primaryKeysForNewRowsWithEntity(int cnt, com.webobjects.eoaccess.EOEntity entity) Batch-fetches new primary keys.
void	selectAttributes(com.webobjects.foundation.NSArray array, com.webobjects.eocontrol.EOFetchSpecification fetchspecification, boolean lock, com.webobjects.eoaccess.EOEntity entity) Overridden to switch the connection to read-only while selecting.
void	setAttributesToFetch(com.webobjects.foundation.NSArray attributes)
int	updateValuesInRowsDescribedByQualifier(com.webobjects.foundation.NSDictionary nsdictionary, com.webobjects.eocontrol.EOQualifier eoqualifier, com.webobjects.eoaccess.EOEntity eoentity) Overridden to clea up after a transaction fails.

Methods inherited from class com.webobjects.jdbcadaptor.JDBCChannel

addStoredProceduresNamed, attributesToFetch, cancelFetch, closeChannel, describeModelWithTableNames, describeResults, describeStoredProcedureNames, describeTableNames, fetchRow, insertRow, isFetchInProgress, isOpen, openChannel, primaryKeyForNewRowWithEntity, returnValuesForLastStoredProcedureInvocation, rowsProcessedCount

Methods inherited from class com.webobjects.eoaccess.EOAdaptorChannel

_raiseOptimisticLockingExceptionWithReason, _setRawDictionaryInitializerForAttributes, adaptorContext, delegate, deleteRowDescribedByQualifier, dictionaryWithObjectsForAttributes, lockRowComparingAttributes, performAdaptorOperation, setDelegate, updateValuesInRowDescribedByQualifier

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXJDBCAdaptor.Channel

public ERXJDBCAdaptor.Channel(com.webobjects.jdbcadaptor.JDBCContext jdbccontext)

Method Detail

setAttributesToFetch

public void setAttributesToFetch(com.webobjects.foundation.NSArray attributes)

Overrides:

setAttributesToFetch in class com.webobjects.jdbcadaptor.JDBCChannel

selectAttributes

public void selectAttributes(com.webobjects.foundation.NSArray array,
                             com.webobjects.eocontrol.EOFetchSpecification fetchspecification,
                             boolean lock,
                             com.webobjects.eoaccess.EOEntity entity)

Overridden to switch the connection to read-only while selecting.

Overrides:

selectAttributes in class com.webobjects.jdbcadaptor.JDBCChannel

performAdaptorOperations

public void performAdaptorOperations(com.webobjects.foundation.NSArray ops)

Overridden to post a notification when the operations were performed.

Overrides:

performAdaptorOperations in class com.webobjects.eoaccess.EOAdaptorChannel

primaryKeysForNewRowsWithEntity

public com.webobjects.foundation.NSArray primaryKeysForNewRowsWithEntity(int cnt,
                                                                         com.webobjects.eoaccess.EOEntity entity)

Batch-fetches new primary keys. Set the property er.extensions.ERXPrimaryKeyBatchSize to a number larger than 0. Also, you can fine-tune the size by adding a key ERXPrimaryKeyBatchSize to your model or entity user info.

Overrides:

primaryKeysForNewRowsWithEntity in class com.webobjects.jdbcadaptor.JDBCChannel

evaluateExpression

public void evaluateExpression(com.webobjects.eoaccess.EOSQLExpression eosqlexpression)

Overridden to clean up after a transaction fails.

Overrides:

evaluateExpression in class com.webobjects.jdbcadaptor.JDBCChannel

executeStoredProcedure

public void executeStoredProcedure(com.webobjects.eoaccess.EOStoredProcedure eostoredprocedure,
                                   com.webobjects.foundation.NSDictionary nsdictionary)

Overridden to clean up after a transaction fails.

Overrides:

executeStoredProcedure in class com.webobjects.jdbcadaptor.JDBCChannel

deleteRowsDescribedByQualifier

public int deleteRowsDescribedByQualifier(com.webobjects.eocontrol.EOQualifier eoqualifier,
                                          com.webobjects.eoaccess.EOEntity eoentity)

Overridden to clean up after a transaction fails.

Overrides:

deleteRowsDescribedByQualifier in class com.webobjects.jdbcadaptor.JDBCChannel

updateValuesInRowsDescribedByQualifier

public int updateValuesInRowsDescribedByQualifier(com.webobjects.foundation.NSDictionary nsdictionary,
                                                  com.webobjects.eocontrol.EOQualifier eoqualifier,
                                                  com.webobjects.eoaccess.EOEntity eoentity)

Overridden to clea up after a transaction fails.

Overrides:

updateValuesInRowsDescribedByQualifier in class com.webobjects.jdbcadaptor.JDBCChannel