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From "Daniel Lee (JIRA)" <j...@apache.org>
Subject [jira] Updated: (OPENJPA-263) Introducing getAll(List) method for data cache to be called by loadAll() will allow data cache plug-ins to leverage the advantage of any third-party cache that provides a way to get multiple object in one call by providing a list of keys (oids).
Date Fri, 22 Jun 2007 23:07:25 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Lee updated OPENJPA-263:
-------------------------------

    Attachment: kernel.patch
                datacache.patch
                OpenJPAJIRA.doc

OpenJPAJIRA.doc describe in detail of this feature.
datacache.patch contains the changes to datacache package in support of this feature
kernel.patch contains the changes to kernel package in support of this feature

Please provide any comments on this feature implementation.

The implementation to handle relationship of Map type will be provided later.  Currently it
handles only Collection type.

> Introducing getAll(List) method for data cache to be called by loadAll() will allow data
cache plug-ins to leverage the advantage of any third-party cache that provides a way to get
multiple object in one call by providing a list of keys (oids).
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-263
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-263
>             Project: OpenJPA
>          Issue Type: New Feature
>          Components: datacache
>    Affects Versions: 1.0.0
>            Reporter: Daniel Lee
>         Attachments: datacache.patch, kernel.patch, OpenJPAJIRA.doc
>
>
> OpenJPA: 5 files to be donated to OpenJPA: (changed, no new file)
> There are changes to the following 5 files which will be donated to OpenJPA to be able
to leverage ObjectGrid map agent to improve the performance on getting the relationship loaded.
> (the donation is upon the approval of OpenJPA committee)
> - org.apache.openjpa.datacache:
> o	AbstractPCData:
> 	toField: calling toNestedFields(new) instead of looping thru all elements in the
field
> (Implements the Collection only for now, may need to apply it to Map and Array)
> 	toNestedFields: (new)
> 	toRelationFields: (new) calls findAll()
> - org.apache.openjpa.datacache:
> o	DataCacheStoreManager: enhance loadAll() to issue getAll() instead get()
> o	AbstractDataCache: add getAll() to abstract as default
> o	DataCache: add getAll() to interface
> o	DelegatingDataCache: add getAll() delegation
> (Please see detail information in the attached Word document.)

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