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 JDBCChannel

Channel subclass to support notification posting.

Author:

ak

Nested Class Summary

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

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(JDBCContext jdbccontext)

Method Summary

void	performAdaptorOperations(NSArray ops) Overridden to post a notification when the operations were performed.
NSArray	primaryKeysForNewRowsWithEntity(int cnt, EOEntity entity) Batch-fetches new primary keys.
void	selectAttributes(NSArray array, EOFetchSpecification fetchspecification, boolean lock, EOEntity entity) Overridden to switch the connection to read-only while selecting.
void	setAttributesToFetch(NSArray attributes)

Methods inherited from class com.webobjects.jdbcadaptor.JDBCChannel

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

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(JDBCContext jdbccontext)

Method Detail

setAttributesToFetch

public void setAttributesToFetch(NSArray attributes)

Overrides:

setAttributesToFetch in class JDBCChannel

selectAttributes

public void selectAttributes(NSArray array,
                             EOFetchSpecification fetchspecification,
                             boolean lock,
                             EOEntity entity)

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

Overrides:

selectAttributes in class JDBCChannel

performAdaptorOperations

public void performAdaptorOperations(NSArray ops)

Overridden to post a notification when the operations were performed.

Overrides:

performAdaptorOperations in class EOAdaptorChannel

primaryKeysForNewRowsWithEntity

public NSArray primaryKeysForNewRowsWithEntity(int cnt,
                                               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 JDBCChannel