[teiid-issues] [JBoss JIRA] (TEIID-2798) Add creation of view when exposing metadata via Object translator

Steven Hawkins (JIRA) issues at jboss.org
Fri Jan 10 15:42:32 EST 2014


    [ https://issues.jboss.org/browse/TEIID-2798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935125#comment-12935125 ] 

Steven Hawkins commented on TEIID-2798:
---------------------------------------

> But out of this, need to fix the metadata so that it doesn't include the Object source in the source table. It could be useful if the object was being returned to the client, but I don't think it should be added by default. What do you think?

I think the current behavior is fine as the default.  Generally speaking unless the object is a simple bean, then the members are going to be more complicated than just built-in type scalar values, which may require further use of an objecttable to denormalize/pull fields.
                
> Add creation of view when exposing metadata via Object translator
> -----------------------------------------------------------------
>
>                 Key: TEIID-2798
>                 URL: https://issues.jboss.org/browse/TEIID-2798
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Misc. Connectors
>    Affects Versions: 8.4.1
>            Reporter: Van Halbert
>            Assignee: Van Halbert
>
> When the metadata is exposed for the java object via the Object translator, a view should also  be created using a template similar to:
> SELECT 
>      		    t.{pkKeyField}, o.{colname}, o.{colname} 
> 		FROM Order
>     		    {ObjectSourceTable} as T,
>       		    OBJECTTABLE('x' PASSING T.{ObjectTypeName}Object as x COLUMNS
>       			{colname}  {type}  'teiid_row.{colname}',  ….) as o
> 		where
> {pkKeyField} is the primary key column to the cache
> {ObjectSourceTable} is the source table imported above
> {ObjectTypeName} is the column added in {ObjectSourceTable} to reference the cache object
> {colname} is the name of the columns that have “get” methods, see the {ObjectSourceTable} for columns to use
> {type} is the data type for this column

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