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
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PROTECTED ActivateChildRelations (handle)
Parameters:
phbuffer HANDLE
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PROTECTED 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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PROTECTED Progress.Lang.Error ClientTransactionError (Error)
Parameters:
e Progress.Lang.Error
Returns Progress.Lang.Error
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PUBLIC 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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PUBLIC 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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PUBLIC 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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PUBLIC Create ()
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PROTECTED OpenEdge.DataAdmin.DataSource.IDataSource CreateReadSource (character)
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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PROTECTED OpenEdge.DataAdmin.DataSource.IDataSource CreateSaveSource (character)
Parameters:
pcName CHARACTER
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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PROTECTED DeactivateChildRelations (handle)
Parameters:
phbuffer HANDLE
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PROTECTED OpenEdge.DataAdmin.DataSource.IDataSource DestroySources ()
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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PUBLIC FetchData (IFetchRequest)
/* TODO - make abstract
Parameters:
msg OpenEdge.DataAdmin.Message.IFetchRequest
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PROTECTED 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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PROTECTED CHARACTER FindUniqueOrNoneQuery (character, character)
Parameters:
pcTable CHARACTER
pcQuery CHARACTER
Returns CHARACTER
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PUBLIC 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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PUBLIC 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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PUBLIC OpenEdge.DataAdmin.DataSource.IDataSource GetSource (character, log)
Parameters:
pcName CHARACTER
plSave LOGICAL
Returns OpenEdge.DataAdmin.DataSource.IDataSource
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PRIVATE refreshBuffer (handle)
Parameters:
pds HANDLE
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PRIVATE SaveBuffer (handle, integer)
Parameters:
phBuffer HANDLE
pistate INTEGER
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PROTECTED SaveBuffers (handle)
Parameters:
phDataset HANDLE
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PRIVATE SaveChildBuffers (IDataSource, handle, integer)
Parameters:
pdatasource OpenEdge.DataAdmin.DataSource.IDataSource
phBuffer HANDLE
piState INTEGER
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PUBLIC OpenEdge.DataAdmin.Message.ISaveRequest SaveData (ISaveRequest)
/*
Parameters:
pSaveReq OpenEdge.DataAdmin.Message.ISaveRequest
Returns OpenEdge.DataAdmin.Message.ISaveRequest
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PROTECTED StartDataSources ()
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PROTECTED ThrowPrepareError (Error, character, character)
Parameters:
e Progress.Lang.Error
pQuery CHARACTER
cname CHARACTER


Constructor Detail
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PUBLIC DataAccess ()


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


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Progress® OpenEdge® Release 12.2.0