Namespace: OpenEdge.DataAdmin.DataAccess
Class
DataAccess
Parent classes:
Progress.Lang.Object
OpenEdge.DataAdmin.DataAccess.DataAccess

Inherits: Progress.Lang.Object
Implements: OpenEdge.DataAdmin.DataAccess.IDataAccess

/* Copyright (c) 2010 by progress Software Corporation
/*
/* all rights reserved. no part of this program or document
/* may be reproduced in any form or by any means without
/* permission in writing from progress Software Corporation.
Author(s):hdaniels
Created:Wed Feb 10 03:01:11 EST 2010
/*using OpenEdge.DataAdmin.DataSource.DataSource.




Method Summary
Options Name Purpose
ActivateChildRelations (handle)
LOGICAL AddUniqueOrNone (character, QueryString) /** return true if the table is not in the search and not added or if it can be unquely identified and was added false - in search query and not avail ? - in search query and ambiguous or joined to others with OR */
Progress.Lang.Error ClientTransactionError (Error)
CHARACTER ColumnExpression (character, character, character) /* (part of IQueryMap interface used by QueryString to map query */
CHARACTER ColumnSortSource (character) /* (part of IQueryMap interface used by QueryString to map query) kept here because many subclasses still implement Iquerymap */
CHARACTER ColumnSource (character) /* return source columns for query mapping (part of IQueryMap interface used by QueryString to map query */
Create ()
OpenEdge.DataAdmin.DataSource.IDataSource CreateReadSource (character)
OpenEdge.DataAdmin.DataSource.IDataSource CreateSaveSource (character)
DeactivateChildRelations (handle)
OpenEdge.DataAdmin.DataSource.IDataSource DestroySources ()
FetchData (IFetchRequest) /* TODO - make abstract */
CHARACTER FindTableJoinValues (character, character) /* returns a join expression on current values of the table i example : "_StorageObject._PartitionId = " + quoter(_Tenant._Tenantid) blank is not found ? is ambiguous or complex expression with other tables (or non existing) Called from ParentJoinQuery, and must be overridden with unique find for related tables if this functionality is needed. */
CHARACTER FindUniqueOrNoneQuery (character, character)
OpenEdge.DataAdmin.DataSource.IDataSource GetReadSource (character) /* used by data access for fill when data sources needs access to each other subclass must implement createReadSource */
OpenEdge.DataAdmin.DataSource.IDataSource GetSaveSource (character) /* used by data access for save traverse through the dataset tree subclass must implement createSaveSource This is an all or none - the data access objects that use this use it for all It is generic enough to be used by all */
OpenEdge.DataAdmin.DataSource.IDataSource GetSource (character, log)
refreshBuffer (handle)
SaveBuffer (handle, integer)
SaveBuffers (handle)
SaveChildBuffers (IDataSource, handle, integer)
OpenEdge.DataAdmin.Message.ISaveRequest SaveData (ISaveRequest) /* */
StartDataSources ()
ThrowPrepareError (Error, character, character)

Constructor Summary
Options Name Purpose
DataAccess ()

Property Summary
Options Name Purpose
OpenEdge.DataAdmin.DataSource.DatabaseInfo DatabaseInfo
HANDLE DatasetHandle
CHARACTER Url
OpenEdge.DataAdmin.Lang.WebUtil WebUtil


Method Detail
Top

ActivateChildRelations (handle)
Parameters:
phbuffer HANDLE
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LOGICAL AddUniqueOrNone (character, QueryString)
Purpose: return true if the table is not in the search and not added
or if it can be unquely identified and was added
false - in search query and not avail
? - in search query and ambiguous or joined to
others with OR
Parameters:
pcTable CHARACTER
pQueryStr OpenEdge.DataAdmin.Lang.QueryString
Returns LOGICAL
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Progress.Lang.Error ClientTransactionError (Error)
Parameters:
e Progress.Lang.Error
Returns Progress.Lang.Error
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CHARACTER ColumnExpression (character, character, character)
/* (part of IQueryMap interface used by QueryString to map query
Parameters:
pcColumn CHARACTER
pcOperator CHARACTER
pcValue CHARACTER
Returns CHARACTER
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CHARACTER ColumnSortSource (character)
/* (part of IQueryMap interface used by QueryString to map query)
kept here because many subclasses still implement Iquerymap
Parameters:
pcColumn CHARACTER
Returns CHARACTER
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CHARACTER ColumnSource (character)
/* return source columns for query mapping
(part of IQueryMap interface used by QueryString to map query
Parameters:
pcColumn CHARACTER
Returns CHARACTER
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Create ()
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OpenEdge.DataAdmin.DataSource.IDataSource CreateReadSource (character)
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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OpenEdge.DataAdmin.DataSource.IDataSource CreateSaveSource (character)
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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DeactivateChildRelations (handle)
Parameters:
phbuffer HANDLE
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OpenEdge.DataAdmin.DataSource.IDataSource DestroySources ()
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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FetchData (IFetchRequest)
/* TODO - make abstract
Parameters:
msg OpenEdge.DataAdmin.Message.IFetchRequest
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CHARACTER FindTableJoinValues (character, character)
/* returns a join expression on current values of the table i
example : "_StorageObject._PartitionId = " + quoter(_Tenant._Tenantid)
blank is not found
? is ambiguous or complex expression with other tables (or non existing)
Called from ParentJoinQuery, and must be overridden with unique find
for related tables if this functionality is needed.
Parameters:
pTable CHARACTER
pFind CHARACTER
Returns CHARACTER
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CHARACTER FindUniqueOrNoneQuery (character, character)
Parameters:
pcTable CHARACTER
pcQuery CHARACTER
Returns CHARACTER
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OpenEdge.DataAdmin.DataSource.IDataSource GetReadSource (character)
/* used by data access for fill when data sources needs access to each other
subclass must implement createReadSource
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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OpenEdge.DataAdmin.DataSource.IDataSource GetSaveSource (character)
/* used by data access for save traverse through the dataset tree
subclass must implement createSaveSource
This is an all or none - the data access objects that use this use it for all
It is generic enough to be used by all
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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OpenEdge.DataAdmin.DataSource.IDataSource GetSource (character, log)
Parameters:
pcName CHARACTER
plSave LOGICAL
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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refreshBuffer (handle)
Parameters:
pds HANDLE
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SaveBuffer (handle, integer)
Parameters:
phBuffer HANDLE
pistate INTEGER
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SaveBuffers (handle)
Parameters:
phDataset HANDLE
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SaveChildBuffers (IDataSource, handle, integer)
Parameters:
pdatasource OpenEdge.DataAdmin.DataSource.IDataSource
phBuffer HANDLE
piState INTEGER
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OpenEdge.DataAdmin.Message.ISaveRequest SaveData (ISaveRequest)
/*
Parameters:
pSaveReq OpenEdge.DataAdmin.Message.ISaveRequest
Returns OpenEdge.DataAdmin.Message.ISaveRequest
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StartDataSources ()
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ThrowPrepareError (Error, character, character)
Parameters:
e Progress.Lang.Error
pQuery CHARACTER
cname CHARACTER


Constructor Detail
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DataAccess ()


Property Detail
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OpenEdge.DataAdmin.DataSource.DatabaseInfo DatabaseInfo
Returns OpenEdge.DataAdmin.DataSource.DatabaseInfo
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HANDLE DatasetHandle
Returns HANDLE
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CHARACTER Url
Returns CHARACTER
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OpenEdge.DataAdmin.Lang.WebUtil WebUtil
Returns OpenEdge.DataAdmin.Lang.WebUtil


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Progress® OpenEdge® Release 11.7.15