Top Method Summary
Options Name Purpose
AttachDataSources () Attaches the DATA-SOURCE objects to the ProDataset Buffers
BindDataset (dataset) Do nothing, just receive the parameter and bind to the received Dataset reference
DefineReadEvents () TO-DO: Subscribe to ProDataset Event Handlers using SET-CALLBACK as needed
DetachDataSources () Detaches the DATA-SOURCE objects to the ProDataset Buffers
eSmartGroupAfterFill (dataset) Populate calculated fields
eSmartGroupModifyEndTrans () Validation method for eSmartGroup
FetchDataByStaticQuery (IFetchDataByStaticQueryRequest) Fetches data for single table, using a static query
FetchSmartGroupByGroupGuid (character, character) FetchData method for static query
SaveChanges () Save changes to physical storage
SaveRowChanges (handle) Executes SAVE-ROW-CHANGES on the before buffer
CHARACTER SourceColumn (character, character) Returns the database field name matching a temp-table field name contained in a consumers query string (query string vs. temp-table definition)
CHARACTER SourceDefaultQuery (character) Returns the base query string used to retrieve data for the temp tables. This query string will be appended by the query provided by the consumer (FetchDataRequest object).

Top Constructor Summary
Options Name Purpose
GroupDataAccess (handle) Constructor for the GroupDataAccess class


Method Detail
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AttachDataSources ()

Purpose: Attaches the DATA-SOURCE objects to the ProDataset Buffers
Notes: Overrides ABSTRACT method in Consultingwerk.OERA.DataAccess,
Invoked in FetchData and SaveChanges

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BindDataset (dataset)

Purpose: Do nothing, just receive the parameter and bind to the received
Dataset reference
Notes: Invoked from the class constructor

Parameters:
dsGroup DATASET dsGroup
DATASET to bind to
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DefineReadEvents ()

Purpose: TO-DO: Subscribe to ProDataset Event Handlers using SET-CALLBACK
as needed
Notes: Overrides ABSTRACT method in Consultingwerk.OERA.DataAccess,
Invoked in FetchData

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DetachDataSources ()

Purpose: Detaches the DATA-SOURCE objects to the ProDataset Buffers
Notes: Overrides ABSTRACT method in Consultingwerk.OERA.DataAccess,
Invoked in FetchData and SaveChanges

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eSmartGroupAfterFill (dataset)

Purpose: Populate calculated fields
Notes:

Parameters:
dsGroup DATASET dsGroup
Input of the dataset
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eSmartGroupModifyEndTrans ()

Purpose: Validation method for eSmartGroup
Notes:

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FetchDataByStaticQuery (IFetchDataByStaticQueryRequest)

Purpose: Fetches data for single table, using a static query
Notes:

Parameters:
poParameter Consultingwerk.OERA.IFetchDataByStaticQueryRequest
The query parameter object
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FetchSmartGroupByGroupGuid (character, character)

Purpose: FetchData method for static query
Notes:

Parameters:
pcGroupGuid CHARACTER
The GroupGuid value
pcChildTables CHARACTER
a list of the child tables to fill
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SaveChanges ()

Purpose: Save changes to physical storage
Notes: This implementation of data access save traverses all records in order
to:
- Allow the DA to control transactions, which cannot be directly
controlled in distributed BL. Transaction control is a concern of
the BL, but should not be controlled with TRANSACTION keyword.
- Offer a course grained save interface from distributed BL
- The default operation here is just a transaction per record
- This simple sample does not use child relations to traverse
the buffers as the OERI BE example. (A property that controls
update order would give the same effect).
- Traversing of child data from a parent would make sense if done for
one parent record at a time.

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SaveRowChanges (handle)

Purpose: Executes SAVE-ROW-CHANGES on the before buffer
Notes: Overrides the DataAccess:SaveRowChanges method; resets the
AssignSkipList property for new records that already contain a
GUID value, this allows to provide the GUID value for new
records optionally from the client

Parameters:
phBeforeBuffer HANDLE
The handle of the BEFORE-BUFFER
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CHARACTER SourceColumn (character, character)

Purpose: Returns the database field name matching a temp-table field name
contained in a consumers query string (query string vs. temp-table
definition)
Notes: Call-back used by Consultingwerk.OERA.Query.DSQueryString (part of
DataAccess:FetchData FetchData () query preparation

Parameters:
pcTable CHARACTER
The temp table name to return the source (database table) field name for
pcColumn CHARACTER
The temp table column name to return the source (database table) field name for
Returns CHARACTER
The database field name mapped to the passed in temp-table field
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CHARACTER SourceDefaultQuery (character)

Purpose: Returns the base query string used to retrieve data for the temp
tables. This query string will be appended by the query provided by
the consumer (FetchDataRequest object).
Notes: Call-back used by Consultingwerk.OERA.Query.DSQueryString (part of
DataAccess:FetchData FetchData () query preparation

Parameters:
pcTable CHARACTER
The temp table name to return the source default (database) query string for
Returns CHARACTER
The base query string used to retrieve data for the given temp-table


Constructor Detail
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GroupDataAccess (handle)

Purpose: Constructor for the GroupDataAccess class
Notes: Used by the BusinessEntity, will receive the handle of the dataset
instance form the BusinessEntity as a parameter. Permanently BIND's
to that dataset using the PRIVATE BindDataset Method.

Parameters:
phDataset HANDLE
The handle of the Business Entity dataset


ProDataset Detail

ProDataset dsGroup

Member tables: eSmartGroup


Temp-Table Detail

Temp-Table eSmartGroup

Defined in:


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