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Posted to dev@openjpa.apache.org by "Daniel Lee (JIRA)" <ji...@apache.org> on 2007/06/23 00:56:25 UTC

[jira] Created: (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).

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


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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[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).

Posted by "Craig Russell (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Craig Russell updated OPENJPA-263:
----------------------------------

    Fix Version/s: 1.0.0

> 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
>             Fix For: 1.0.0
>
>         Attachments: OpenJPA-263.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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[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment: OpenJPA-263.patch

The result of performance measurement which has been done on a smaller data set (1 customer with 10 orders, each order has 100 orderitems) has shown 96% performance gain (please refer to the result below).  This is on a standalone environment without network overhead.  It is sure that the performance improvement will be much greater if the data cache is on a separate machine.

Test scenario:
reload the customer which has 10 orders, each order has 100 orderitems.  All relationship are EAGER.  DataCache is turned on with plug-in to an IBM caching products.

Performance result:
- average time without the new (getAll) implementation: 11.38 sec.
- average time with this (getAll) implementation: 5.8 sec.

Please refer to the final patch (OpenJPA-263.patch) for the complete changes.

> 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: OpenJPA-263.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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[jira] Resolved: (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).

Posted by "Craig Russell (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Craig Russell resolved OPENJPA-263.
-----------------------------------

    Resolution: Fixed

> 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
>             Fix For: 1.0.0
>
>         Attachments: OpenJPA-263.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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[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment: OpenJPA-263.patch

The result of performance measurement which has been done on a smaller data set (1 customer with 10 orders, each order has 100 orderitems) has shown 96% performance gain (please refer to the result below).  This is on a standalone environment without network overhead.  It is sure that the performance improvement will be much greater if the data cache is on a separate machine.

Test scenario:
reload the customer which has 10 orders, each order has 100 orderitems.  All relationship are EAGER.  DataCache is turned on with plug-in to an IBM caching products.

Performance result:
- average time without the new (getAll) implementation: 11.38 sec.
- average time with this (getAll) implementation: 5.8 sec.

Please refer to the final patch (OpenJPA-263.patch) for the complete changes.

> 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, OpenJPA-263.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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You can reply to this email to add a comment to the issue online.

[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment: OpenJPA-263.patch

attach the same patch with granting license to ASF... 

> 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, OpenJPA-263.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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[jira] Commented: (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).

Posted by "Patrick Linskey (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12514321 ] 

Patrick Linskey commented on OPENJPA-263:
-----------------------------------------

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

Does this mean that objects with Map fields will not be supported at all, or that they will go through the existing (less-efficient) pathways?

> 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: OpenJPA-263.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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[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment:     (was: OpenJPA-263.patch)

> 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: OpenJPA-263.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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You can reply to this email to add a comment to the issue online.

[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ 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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You can reply to this email to add a comment to the issue online.

[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment:     (was: datacache.patch)

> 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: OpenJPA-263.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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[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment:     (was: OpenJPA-263.patch)

> 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, OpenJPA-263.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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[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).

Posted by "Daniel Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/OPENJPA-263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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

    Attachment:     (was: kernel.patch)

> 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: OpenJPA-263.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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