Namespace: Consultingwerk.BusinessEntityDesigner.Services
Class 
DatabaseSchemaBusinessEntity Copy to Clipboard
Parent classes:
Progress.Lang.Object
Consultingwerk.OERA.BusinessEntity
Consultingwerk.BusinessEntityDesigner.Services.DatabaseSchemaBusinessEntity

Inherits: Consultingwerk.OERA.BusinessEntity
Implements: IBusinessEntity, IBusinessService, IHasContextID

File:BusinessEntityBusinessEntity
Author(s):Mike Fechner / Consultingwerk Ltd.
Created:Wed Oct 13 19:45:41 CEST 2010

Navigate to: Methods | Constructors | Events | Properties



Top Method Summary
Options Name Purpose
+ CanFind (dataset-handle, CanFindParameter) Returns a TRUE value if a record is found that meets the specified FIND criteria; otherwise it returns FALSE. CAN-FIND does not make the record available to the Business Entity or it's caller.
Inherited from Consultingwerk.OERA.BusinessEntity
+ CountResultRecords (dataset-handle, ICountRecordsRequest) Counts the number of results of the query
Inherited from Consultingwerk.OERA.BusinessEntity
# DestroyDataAccessObject () Unloads the DataAccess object
Inherited from Consultingwerk.OERA.BusinessEntity
# FetchChildTableRecords (handle) Populates records in the child table identified by the buffer handle of the child table
Inherited from Consultingwerk.OERA.BusinessEntity
+ FetchData (IFetchDataRequest) Fetch data from the Data Access object
Inherited from Consultingwerk.OERA.BusinessEntity
+ F FetchData (IFetchDataRequest, dataset-handle) Fetch data and/or definitions
Inherited from Consultingwerk.OERA.BusinessEntity
+ FetchDataByKeyTable (dataset-handle, IFetchDataByKeyTableParameter) Allows retrieve multiple DB records from a Business Entity based on a temp-table with key values
Inherited from Consultingwerk.OERA.BusinessEntity
+ FetchDataset (dataset-handle) Creates and returns an empty dataset to the caller
Inherited from Consultingwerk.OERA.BusinessEntity
+ GetBusinessEntityDescriptor (dataset-handle, GetBusinessEntityDescriptorParameter) Returns the Business Entity Descriptor for this Business Entity
Inherited from Consultingwerk.OERA.BusinessEntity
+ GetTopNavBuffers (dataset-handle, CharacterHolder) Populates the provided CharacterHolder with a comma-delimited list of the names of the dataset TOP-NAV-BUFFER's
Inherited from Consultingwerk.OERA.BusinessEntity
# InitializeDataAccessObject () Initializes the DataAcess Object
Inherited from Consultingwerk.OERA.BusinessEntity
# LOGICAL PopulateFromPartialBuffer (handle) Populates a single ProDataset record from the partial record to the complete record
Inherited from Consultingwerk.OERA.BusinessEntity
# PopulatePartialBuffer (handle) Populates a single ProDataset record from the partial record to the complete record
Inherited from Consultingwerk.OERA.BusinessEntity
+ ReceiveData ()
Overrides Consultingwerk.OERA.BusinessEntity:ReceiveData ()
+ SaveChanges () Saves changes using the DataAccess object
Inherited from Consultingwerk.OERA.BusinessEntity
+ F SaveChanges (dataset-handle) Saves changes
Inherited from Consultingwerk.OERA.BusinessEntity
+ F SaveChanges (dataset-handle, Object) Saves changes
Inherited from Consultingwerk.OERA.BusinessEntity
+ SavePartialChanges (dataset-handle, Object) Saves partial changes to the Busiuness Entity Dataset
Inherited from Consultingwerk.OERA.BusinessEntity
# CHARACTER UniqueFindPredicateWithValueBuffer (handle, handle, character) Builds a unique find predicate for a prodataset buffer (based on an unique index).
Inherited from Consultingwerk.OERA.BusinessEntity
+ ValidateData ()
Overrides Consultingwerk.OERA.BusinessEntity:ValidateData ()
+ ValidateData (dataset-handle, IValidateDataContext) Provides a client callable method for data validation
Inherited from Consultingwerk.OERA.BusinessEntity
+ ValidatePartialData (dataset-handle, IValidateDataContext) Provides a client callable method for partial data validation
Inherited from Consultingwerk.OERA.BusinessEntity

Top Constructor Summary
Options Name Purpose
+ DatabaseSchemaBusinessEntity ()

Top Property Summary
Options Name Purpose
+ CHARACTER ContextID A Context ID / Instance ID
Inherited from Consultingwerk.OERA.BusinessEntity
+ CHARACTER DataAccessName Returns the name of the data access class used by this business entity
Inherited from Consultingwerk.OERA.BusinessEntity
+ Consultingwerk.OERA.IDataAccess DataAccessObject Returns the reference to the data access object used by this business entity
Inherited from Consultingwerk.OERA.BusinessEntity
+ HANDLE DatasetHandle Returns a reference to the dataset owned by this business entity
Inherited from Consultingwerk.OERA.BusinessEntity
# IFetchDataRequest FetchDataRequest Returns the reference to the current IFetchDataRequest instance
Inherited from Consultingwerk.OERA.BusinessEntity
+ Consultingwerk.OERA.Enum.RequestTypeEnum RequestType Returns the type of the current request (FetchData/SaveChanges)
Inherited from Consultingwerk.OERA.BusinessEntity
# Progress.Lang.Object SaveChangesParameter Gets the reference of the current parameter object passed to the SaveChanges method
Inherited from Consultingwerk.OERA.BusinessEntity
+ LOGICAL TrackingChanges Turns on and off tracking changes for the business entity temp-tables
Inherited from Consultingwerk.OERA.BusinessEntity
# IValidateDataContext ValidateDataContext Returns the current IValidateDataContext instance
Inherited from Consultingwerk.OERA.BusinessEntity


Method Detail
Top

PUBLIC CanFind (dataset-handle, CanFindParameter)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns a TRUE value if a record is found that meets the specified
FIND criteria; otherwise it returns FALSE. CAN-FIND does not make
the record available to the Business Entity or it's caller.
Notes: Invokable method
Result will be assigned to the Result property of the CanFindParameter
instance

Parameters:
phDataset DATASET-HANDLE
Not used, do not pass in a DATASET or DATASET-HANDLE
poParameter CanFindParameter
The CanFindParameter with the parameters for this call
Top

PUBLIC CountResultRecords (dataset-handle, ICountRecordsRequest)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Counts the number of results of the query
Notes: Used by the Generic JSDO Service to support the Count feature
Supports STOP-AFTER: When STOP-AFTER occurs, the StopAfterNumResults
value of the parameter object is returns as the Results
http://confluence.consultingwerkcloud.com/wiki/display/SCL/Generic+Service+Interface+for+JSDO+with+Kendo+UI+dialect#GenericServiceInterfaceforJSDOwithKendoUIdialect-ResourceCount

Parameters:
phDataset DATASET-HANDLE
The dataset handle (not used)
poParameter ICountRecordsRequest
The CharacterHolder to receive the list of TOP-NAV-BUFFERS
Top

PROTECTED DestroyDataAccessObject ()
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Unloads the DataAccess object
Notes:

Top

PROTECTED FetchChildTableRecords (handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Populates records in the child table identified by the buffer handle
of the child table
Notes: Calls into a second instance of the Business Entity and performs a
FetchDataRequest based on the current record in the parent buffer
Performs no action, when the Child table record for the parent is
already available

Parameters:
phChildBuffer HANDLE
The child buffer
Top

PUBLIC FetchData (IFetchDataRequest)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Fetch data from the Data Access object
Notes:

Parameters:
poFetchDataRequest IFetchDataRequest
The IFetchDataRequest object with the parameters for this call
Top

PUBLIC FetchData (IFetchDataRequest, dataset-handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Fetch data and/or definitions
Notes:

Parameters:
poFetchDataRequest IFetchDataRequest
The IFetchDataRequest object with the parameter for this call
phDataset DATASET-HANDLE
OUTPUT Dataset with the resulting data
Top

PUBLIC FetchDataByKeyTable (dataset-handle, IFetchDataByKeyTableParameter)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Allows retrieve multiple DB records from a Business Entity based on
a temp-table with key values
Notes: Proxy method to calling the same method in the data access class
SCL-647

Parameters:
phDataset DATASET-HANDLE
INPUT-OUTPUT DATAEST-HANDLE, only used for OUTPUT of the resulting dataset
poParameter IFetchDataByKeyTableParameter
The IFetchDataByKeyTableParameter with the data for this call
Top

PUBLIC FetchDataset (dataset-handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Creates and returns an empty dataset to the caller
Notes: Useful for dynamic callers that need access to the dataset schema prior to calling FetchData

Parameters:
phDataset DATASET-HANDLE
OUTPUT Dataset with the resulting data
Top

PUBLIC GetBusinessEntityDescriptor (dataset-handle, GetBusinessEntityDescriptorParameter)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the Business Entity Descriptor for this Business Entity
Notes: Invokable Method
http://confluence.consultingwerkcloud.com/wiki/display/SCL/Business+Entity+Descriptor

Parameters:
phDataset DATASET-HANDLE
The dataset of the Business Entity
poParameter GetBusinessEntityDescriptorParameter
The GetBusinessEntityDescriptorParameter with the data for this call
Top

PUBLIC GetTopNavBuffers (dataset-handle, CharacterHolder)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Populates the provided CharacterHolder with a comma-delimited list
of the names of the dataset TOP-NAV-BUFFER's
Notes:

Parameters:
phDataset DATASET-HANDLE
The dataset handle (not used)
poParameter CharacterHolder
The CharacterHolder to receive the list of TOP-NAV-BUFFERS
Top

PROTECTED InitializeDataAccessObject ()
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Initializes the DataAcess Object
Notes: Uses the DataAccessName property

Top

PROTECTED LOGICAL PopulateFromPartialBuffer (handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Populates a single ProDataset record from the partial record to the complete
record
Notes: Used during SavePartialChanges and ValidatePartialData before SaveChanges
(for a single record) or ValidateData are called

Parameters:
phPartialBuffer HANDLE
The buffer of the partial dataset to use as the source
Returns LOGICAL
Logical value indicating if the operation was successful
Top

PROTECTED PopulatePartialBuffer (handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Populates a single ProDataset record from the partial record to the complete
record
Notes: Used during SavePartialChanges and ValidatePartialData before SaveChanges
(for a single record) or ValidateData are called

Parameters:
phPartialBuffer HANDLE
The buffer of the partial dataset to use as the source
Top

PUBLIC ReceiveData ()
Overrides Consultingwerk.OERA.BusinessEntity:ReceiveData ()

Top

PUBLIC SaveChanges ()
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Saves changes using the DataAccess object
Notes: This method saves changes contained in the dataset currently present
in the Business Entity

Top

PUBLIC SaveChanges (dataset-handle)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Saves changes
Notes: This method is called from consumers of the Business Entity and
receives the dataset. It calls into the SaveChanges() method with no
parameters after the internal dataset has been set
This method is called by the ServiceInterface when no parameter object
has been passed in

Parameters:
phDataset DATASET-HANDLE
INPUT-OUTPUT Dataset with changes
Top

PUBLIC SaveChanges (dataset-handle, Object)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Saves changes
Notes: This method is called from consumers of the Business Entity and
receives the dataset. It calls into the SaveChanges() method with no
parameters after the internal dataset has been set
This method is called by the ServiceInterface when a parameter object
has been passed in. The parameter object will be accessible from within
the business entity using the protected property SaveChangesParameter

Parameters:
phDataset DATASET-HANDLE
INPUT-OUTPUT Dataset with changes
poParameter Progress.Lang.Object
Optional Parameter object for the SaveChanges method
Top

PUBLIC SavePartialChanges (dataset-handle, Object)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Saves partial changes to the Busiuness Entity Dataset
Notes: Saves only those fields from the provided Dataset. Does fetch the
complete dataset first, then applies changes from the provided
dataset to the complete dataset and saves this using SaveChanges.
Relies on ROW-STATE in the partial dataset as well! A seperate method
may be added in the future, that only expects current values from the
passed in ProDataset
When multiple records are provided in the partial dataset, currently
each record is processed alone
For simplicity of the partial dataset, we do not expect this dataset to
have indexes defined. However, we do expect that the partial dataset
contains the columns of the primary unique key of the business entity
dataset columns
Flow of actions:
- Fetch the whole Dataset Records
- Manipulate the "before"
- Manipulate the "after"
- SaveChanges()
- Transfer ERROR, ERROR-STRING attributes
- Return updated partial records to the caller
SCL-987

Parameters:
phDataset DATASET-HANDLE
INPUT-OUTPUT Dataset with changes
poParameter Progress.Lang.Object
Optional Parameter object for the SavePartialChanges method (BusinessEntity:SaveChangesParameter)
Top

PROTECTED CHARACTER UniqueFindPredicateWithValueBuffer (handle, handle, character)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Builds a unique find predicate for a prodataset buffer (based on an
unique index).
Notes: Based on BufferHelper:UniqueFindPredicateWithValueBuffer. Called from
SavePartialChanges. Extracted from SavePartialChanges to allow injecting
missing key field values (e.g. tenant related fields) by overriding
this method.

Parameters:
phBuffer HANDLE
The Business Entity ProDataset member buffer
phPartialBuffer HANDLE
The buffer of the partial dataset, values will be used from it's before-buffer
pcBufferName CHARACTER
The name of the buffer for the find string
Returns CHARACTER
The unique find predicate used to locate the ProDataset buffer for the partial update
Top

PUBLIC ValidateData ()
Overrides Consultingwerk.OERA.BusinessEntity:ValidateData ()

Top

PUBLIC ValidateData (dataset-handle, IValidateDataContext)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Provides a client callable method for data validation
Notes: Invokes ValidateData(), but not linked to any SaveChanges invokation
The poContext parameter is available during the method execution through
the ValidateDataContext property
See SCL-1030

Parameters:
phDataset DATASET-HANDLE
The DATASET-HANDLE with the data to validate
poContext IValidateDataContext
The IValidateDataContext instance with the context for this call
Top

PUBLIC ValidatePartialData (dataset-handle, IValidateDataContext)
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Provides a client callable method for partial data validation
Notes: Invokes ValidateData(), but not linked to any SaveChanges invokation
The poContext parameter is available during the method execution through
the ValidateDataContext property
See SCL-1030, SCL-1034

Parameters:
phDataset DATASET-HANDLE
The DATASET-HANDLE with the data to validate
poContext IValidateDataContext
The IValidateDataContext instance with the context for this call


Constructor Detail
Top

PUBLIC DatabaseSchemaBusinessEntity ()
Purpose:
Notes:



Property Detail
Top

PUBLIC CHARACTER ContextID
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: A Context ID / Instance ID
Notes: Used to differentiate multiple instances of the same Business Entity
Class

Returns CHARACTER
Top

PUBLIC CHARACTER DataAccessName
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the name of the data access class used by this business
entity
Notes:

Returns CHARACTER
Top

PUBLIC Consultingwerk.OERA.IDataAccess DataAccessObject
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the reference to the data access object used by this
business entity
Notes:

Returns Consultingwerk.OERA.IDataAccess
Top

PUBLIC HANDLE DatasetHandle
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns a reference to the dataset owned by this business entity
Notes:

Returns HANDLE
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PROTECTED IFetchDataRequest FetchDataRequest
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the reference to the current IFetchDataRequest instance
Notes: Allows accessing the IFetchDataRequest instance during ProDataset
event call back and during the AttachDataSources method

Returns IFetchDataRequest
Top

PUBLIC Consultingwerk.OERA.Enum.RequestTypeEnum RequestType
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the type of the current request (FetchData/SaveChanges)
Notes: Can be used in AttachDataSource etc. to adjust data sources for
optimized read or save operations

Returns Consultingwerk.OERA.Enum.RequestTypeEnum
Top

PROTECTED Progress.Lang.Object SaveChangesParameter
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Gets the reference of the current parameter object passed to the
SaveChanges method
Notes:

Returns Progress.Lang.Object
Top

PUBLIC LOGICAL TrackingChanges
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Turns on and off tracking changes for the business entity temp-tables
Notes: When assigning a value to this property, the TRACKING-CHANGES
attribute of all temp-tables will be set. When querying the
property, the value of the TRACKING-CHANGES attribute of the first
updatable temp-table will be returned. When there is not updatable
temp-table, FALSE will be returned

Returns LOGICAL
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PROTECTED IValidateDataContext ValidateDataContext
Inherited from Consultingwerk.OERA.BusinessEntity
Purpose: Returns the current IValidateDataContext instance
Notes: Only valid while the ValidateDataContext (Dataset, IValidateDataContext)
method is executed, see SCL-1030

Returns IValidateDataContext


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