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Posted to users@isis.apache.org by "Branham, Jeremy [HR]" <Je...@sprint.com> on 2014/12/20 15:26:59 UTC
How would I use neo4j with Apache Isis?
I am attempting to use neo4j as a backing store for Apache Isis but it looks like some development may be needed.
If I add the datanucleus-neo4j dependency, it appears the neo4j JDO connection is initializing but Apache Isis is expecting a different type of StoreManager.
This is the exception I get
org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to org.datanucleus.store.schema.SchemaAwareStoreManager
How can I use neo4j as a backing store in Apache Isis?
I read about nosql support in Isis, but is it not part of the current release?http://isis.apache.org/components/objectstores/nosql/about.html
Thanks!
This question is also posted at -
http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-with-apache-isis
________________________________
This e-mail may contain Sprint proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.
Re: How would I use neo4j with Apache Isis?
Posted by Dan Haywood <da...@haywood-associates.co.uk>.
Sizwe, Jeremy
Great that you are both enthused on using Apache Isis with Neo4J. I can't
claim any experience at all with it as a datastore (other than watching a
presentation or two at conferences/youtube) but it's gratifying to know
that our decision to use JDO/DataNucleus is opening this up as a
possibility for you.
If you can collaborate together that'd be great, but whichever, do tell us
of any issues/snags/gaps you encounter so that we can evolve Isis in order
to best support your use cases.
Cheers
Dan
On 23 December 2014 at 20:07, Branham, Jeremy [HR] <
Jeremy.D.Branham@sprint.com> wrote:
> Sizwe -
> I feel your excitement and believe there are major benefits to using a
> graph data store.
> Maybe some sort of conditional workflow could be realized through the
> relationships, or general analysis operations based on aggregations,
> centrality algorithms, etc...
>
> I put together an Isis add-on yesterday that spins up the neo4j REST and
> admin services alongside a running Isis application when using embedded
> neo4j, but it would be nice to use the latest data-nucleus packages so the
> neo4j 2.x release could be leveraged. [currently working with neo4j 1.9.9]
> It's not necessary, but the graph browser/console for 2.x would be a nice
> perk.
> Though, there are other ways to visualize the data using JS + D3.js
>
> One thing I noticed, nodes added through Isis weren’t visible in the neo4j
> admin panel. It may have to do with labeling/indexing. I'm not sure yet.
>
> Let me know if there is anything I can help with or if you want to partner
> on some development.
>
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Mabanga, Sizwe [mailto:SMabanga@wesbank.co.za]
> Sent: Tuesday, December 23, 2014 4:44 AM
> To: users@isis.apache.org
> Subject: RE: How would I use neo4j with Apache Isis?
>
> Hi Guys
>
> I'm incredibly excited about naked objects as a software design
> philosophy, but when I read up on Neo4j and graph databases (after reading
> this thread) I almost had an aneurysm.
>
> These two (naked objects and graph databases) seem to be a match made in
> heaven! Persistence models in general can do with an elevation of
> relationships (edges) to first class entities as opposed to shallow
> composition relationships based on numerical constraints!
>
> Isis viewers would simply then list an entity's (node) properties as
> usual, but the current list of collections (shallow compositional
> relationships) would be replaced with a list of rich relationships that the
> entity has.
>
> To start with we can make the list of possible entity relationships static
> (developer defined) but later we should enable that users add new
> relationship types as and when needed (making them 1st class graph
> creators).
>
> Isis's early adoption of this model could serve as an even bigger
> differentiator for Isis and align it more closely to the movement towards
> cleaner/stronger semantics in our code (the movement championed by Naked
> Objects).
>
> Please excuse my excessive use of parenthesis and tell whether I'm on the
> money?
>
> Thnx
> Sizwe
>
> -----Original Message-----
> From: Branham, Jeremy [HR] [mailto:Jeremy.D.Branham@sprint.com]
> Sent: 22 December 2014 09:42 PM
> To: users@isis.apache.org
> Subject: RE: How would I use neo4j with Apache Isis?
>
> Great!
> I'll be working with this quite a bit so I do expect to contribute further.
> I've also subscribed to the StackOverflow tags in case there are others
> needing assistance with Isis + Neo4J.
>
> Thank you Dan.
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> Sent: Monday, December 22, 2014 1:35 PM
> To: users
> Subject: Re: How would I use neo4j with Apache Isis?
>
> Hi Jeremy,
>
> OK, I've merged in that pull request, thanks again for providing.
>
> I've also added a new page to the website, see [1] and [2] and updated the
> snapshot archetypes [3] (though probably still being built as I write
> this...)
>
> I've signposted all up as "experimental", so if you find any issues as you
> play with neo4j then do say.
>
> Cheers
> Dan
>
>
> [1] http://isis.apache.org/documentation.html
> [2] http://isis.apache.org/components/objectstores/jdo/using-neo4j.html
> [3] http://isis.apache.org/intro/getting-started/simpleapp-archetype.html
>
>
>
>
> On 22 December 2014 at 14:30, Branham, Jeremy [HR] <
> Jeremy.D.Branham@sprint.com> wrote:
>
> > Dan -
> > Thanks for the warm welcome and the consideration.
> > I've never created a pull request before so this is exciting for me,
> > especially given it's an Apache project.
> > Apache has done so much for open source and I have a great respect for
> > all contributors involved.
> >
> > I've updated the fork and recommitted.
> > Thanks again!
> >
> > Jeremy D. Branham
> > Tel: **DOTNET
> >
> >
> > -----Original Message-----
> > From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> > Sent: Monday, December 22, 2014 2:32 AM
> > To: users
> > Subject: Re: How would I use neo4j with Apache Isis?
> >
> > Hi Jeremy,
> >
> > ... and welcome to the mailing list.
> >
> > Very nice to see you trying out Apache Isis with Neo4J, and submitting
> > a patch already too [1] with pull request [2].
> >
> > To be completely honest, although one of the reasons we chose
> > DataNucleus and JDO for the ORM was because it gave us NoSQL support
> > "for free", there's very little experience of using it with anything
> > other than against an RDBMS. That's not quite true: Maurizio Taverna,
> > one of our committers, has successfully run Apache Isis against GAE,
> > and we made one or two minor commits to enable that; there's a brief
> > page on our website on the topic [3].
> >
> > Given the change you've made is so minor, I have no problems in
> > merging in your pull request. That way, you're not maintaining your
> > own fork, and if there are further changes that are needed then we can
> > address them as need be.
> >
> > There are one or two minor tweaks to that PR, if you could address
> > those and recreate then I'll merge them in.
> >
> > So thanks again... it'd be great to say (hand on heart) that we
> > support running on Neo4J.
> >
> > Cheers
> > Dan
> >
> > [1 ]https://issues.apache.org/jira/browse/ISIS-983
> > [2] https://github.com/apache/isis/pull/16
> > [3]
> >
> > http://isis.apache.org/components/objectstores/jdo/deploying-on-the-go
> > ogle-app-engine.html
> >
> >
> >
> >
> >
> > On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
> > Jeremy.D.Branham@sprint.com> wrote:
> >
> > > I'm not sure what the implications are, but I was able to get a
> > > neo4j datastore working with Apache Isis by modifying
> > > org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationCo
> > > mp onents#createSchema in the "Isis Core Runtime module" to check if
> > > the datanucleus StoreManager supports the SchemaAwareStoreManager
> > > interface before casting.
> > >
> > > It is persisting data successfully.
> > >
> > >
> > > private void createSchema(final Map<String, String> props, final
> > > Set<String> classesToBePersisted) {
> > > final JDOPersistenceManagerFactory jdopmf =
> > > (JDOPersistenceManagerFactory)persistenceManagerFactory;
> > > final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> > > final StoreManager storeManager = nucleusContext.getStoreManager();
> > > if (storeManager instanceof SchemaAwareStoreManager) {
> > >
> > > ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePers
> > > is
> > > ted,
> > > asProperties(props));
> > > }
> > > }
> > >
> > >
> > >
> > > Jeremy D. Branham
> > > Tel: **DOTNET
> > >
> > >
> > > -----Original Message-----
> > > From: Branham, Jeremy [HR]
> > > Sent: Saturday, December 20, 2014 8:27 AM
> > > To: users@isis.apache.org
> > > Subject: How would I use neo4j with Apache Isis?
> > >
> > > I am attempting to use neo4j as a backing store for Apache Isis but
> > > it looks like some development may be needed.
> > > If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> > > connection is initializing but Apache Isis is expecting a different
> > > type of StoreManager.
> > >
> > > This is the exception I get
> > > org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> > > org.datanucleus.store.schema.SchemaAwareStoreManager
> > >
> > > How can I use neo4j as a backing store in Apache Isis?
> > > I read about nosql support in Isis, but is it not part of the
> > > current
> > > release?http://isis.apache.org/components/objectstores/nosql/about.h
> > > tm
> > > l
> > >
> > > Thanks!
> > >
> > > This question is also posted at -
> > >
> > > http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-wi
> > > th
> > > -apache-isis
> > >
> > > ________________________________
> > >
> > > This e-mail may contain Sprint proprietary information intended for
> > > the sole use of the recipient(s). Any use by others is prohibited.
> > > If you are not the intended recipient, please contact the sender and
> > > delete all copies of the message.
> > >
> > > ________________________________
> > >
> > > This e-mail may contain Sprint proprietary information intended for
> > > the sole use of the recipient(s). Any use by others is prohibited.
> > > If you are not the intended recipient, please contact the sender and
> > > delete all copies of the message.
> > >
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited. If
> > you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for the
> sole use of the recipient(s). Any use by others is prohibited. If you are
> not the intended recipient, please contact the sender and delete all copies
> of the message.
>
> To read WesBank's Disclaimer for this email click on the following address
> or copy into your Internet browser:
> https://www.wesbank.co.za/wesbankcoza/about/legal/emaildisclaimer.xhtml
>
> If you are unable to access the Disclaimer, send a blank e-mail to
> emaildisclaimer@wesbank.co.za and we will send you a copy of the
> Disclaimer.
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for the
> sole use of the recipient(s). Any use by others is prohibited. If you are
> not the intended recipient, please contact the sender and delete all copies
> of the message.
>
RE: How would I use neo4j with Apache Isis?
Posted by "Branham, Jeremy [HR]" <Je...@sprint.com>.
Sizwe -
I feel your excitement and believe there are major benefits to using a graph data store.
Maybe some sort of conditional workflow could be realized through the relationships, or general analysis operations based on aggregations, centrality algorithms, etc...
I put together an Isis add-on yesterday that spins up the neo4j REST and admin services alongside a running Isis application when using embedded neo4j, but it would be nice to use the latest data-nucleus packages so the neo4j 2.x release could be leveraged. [currently working with neo4j 1.9.9]
It's not necessary, but the graph browser/console for 2.x would be a nice perk.
Though, there are other ways to visualize the data using JS + D3.js
One thing I noticed, nodes added through Isis weren’t visible in the neo4j admin panel. It may have to do with labeling/indexing. I'm not sure yet.
Let me know if there is anything I can help with or if you want to partner on some development.
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Mabanga, Sizwe [mailto:SMabanga@wesbank.co.za]
Sent: Tuesday, December 23, 2014 4:44 AM
To: users@isis.apache.org
Subject: RE: How would I use neo4j with Apache Isis?
Hi Guys
I'm incredibly excited about naked objects as a software design philosophy, but when I read up on Neo4j and graph databases (after reading this thread) I almost had an aneurysm.
These two (naked objects and graph databases) seem to be a match made in heaven! Persistence models in general can do with an elevation of relationships (edges) to first class entities as opposed to shallow composition relationships based on numerical constraints!
Isis viewers would simply then list an entity's (node) properties as usual, but the current list of collections (shallow compositional relationships) would be replaced with a list of rich relationships that the entity has.
To start with we can make the list of possible entity relationships static (developer defined) but later we should enable that users add new relationship types as and when needed (making them 1st class graph creators).
Isis's early adoption of this model could serve as an even bigger differentiator for Isis and align it more closely to the movement towards cleaner/stronger semantics in our code (the movement championed by Naked Objects).
Please excuse my excessive use of parenthesis and tell whether I'm on the money?
Thnx
Sizwe
-----Original Message-----
From: Branham, Jeremy [HR] [mailto:Jeremy.D.Branham@sprint.com]
Sent: 22 December 2014 09:42 PM
To: users@isis.apache.org
Subject: RE: How would I use neo4j with Apache Isis?
Great!
I'll be working with this quite a bit so I do expect to contribute further.
I've also subscribed to the StackOverflow tags in case there are others needing assistance with Isis + Neo4J.
Thank you Dan.
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
Sent: Monday, December 22, 2014 1:35 PM
To: users
Subject: Re: How would I use neo4j with Apache Isis?
Hi Jeremy,
OK, I've merged in that pull request, thanks again for providing.
I've also added a new page to the website, see [1] and [2] and updated the snapshot archetypes [3] (though probably still being built as I write
this...)
I've signposted all up as "experimental", so if you find any issues as you play with neo4j then do say.
Cheers
Dan
[1] http://isis.apache.org/documentation.html
[2] http://isis.apache.org/components/objectstores/jdo/using-neo4j.html
[3] http://isis.apache.org/intro/getting-started/simpleapp-archetype.html
On 22 December 2014 at 14:30, Branham, Jeremy [HR] < Jeremy.D.Branham@sprint.com> wrote:
> Dan -
> Thanks for the warm welcome and the consideration.
> I've never created a pull request before so this is exciting for me,
> especially given it's an Apache project.
> Apache has done so much for open source and I have a great respect for
> all contributors involved.
>
> I've updated the fork and recommitted.
> Thanks again!
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> Sent: Monday, December 22, 2014 2:32 AM
> To: users
> Subject: Re: How would I use neo4j with Apache Isis?
>
> Hi Jeremy,
>
> ... and welcome to the mailing list.
>
> Very nice to see you trying out Apache Isis with Neo4J, and submitting
> a patch already too [1] with pull request [2].
>
> To be completely honest, although one of the reasons we chose
> DataNucleus and JDO for the ORM was because it gave us NoSQL support
> "for free", there's very little experience of using it with anything
> other than against an RDBMS. That's not quite true: Maurizio Taverna,
> one of our committers, has successfully run Apache Isis against GAE,
> and we made one or two minor commits to enable that; there's a brief
> page on our website on the topic [3].
>
> Given the change you've made is so minor, I have no problems in
> merging in your pull request. That way, you're not maintaining your
> own fork, and if there are further changes that are needed then we can
> address them as need be.
>
> There are one or two minor tweaks to that PR, if you could address
> those and recreate then I'll merge them in.
>
> So thanks again... it'd be great to say (hand on heart) that we
> support running on Neo4J.
>
> Cheers
> Dan
>
> [1 ]https://issues.apache.org/jira/browse/ISIS-983
> [2] https://github.com/apache/isis/pull/16
> [3]
>
> http://isis.apache.org/components/objectstores/jdo/deploying-on-the-go
> ogle-app-engine.html
>
>
>
>
>
> On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
> Jeremy.D.Branham@sprint.com> wrote:
>
> > I'm not sure what the implications are, but I was able to get a
> > neo4j datastore working with Apache Isis by modifying
> > org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationCo
> > mp onents#createSchema in the "Isis Core Runtime module" to check if
> > the datanucleus StoreManager supports the SchemaAwareStoreManager
> > interface before casting.
> >
> > It is persisting data successfully.
> >
> >
> > private void createSchema(final Map<String, String> props, final
> > Set<String> classesToBePersisted) {
> > final JDOPersistenceManagerFactory jdopmf =
> > (JDOPersistenceManagerFactory)persistenceManagerFactory;
> > final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> > final StoreManager storeManager = nucleusContext.getStoreManager();
> > if (storeManager instanceof SchemaAwareStoreManager) {
> >
> > ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePers
> > is
> > ted,
> > asProperties(props));
> > }
> > }
> >
> >
> >
> > Jeremy D. Branham
> > Tel: **DOTNET
> >
> >
> > -----Original Message-----
> > From: Branham, Jeremy [HR]
> > Sent: Saturday, December 20, 2014 8:27 AM
> > To: users@isis.apache.org
> > Subject: How would I use neo4j with Apache Isis?
> >
> > I am attempting to use neo4j as a backing store for Apache Isis but
> > it looks like some development may be needed.
> > If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> > connection is initializing but Apache Isis is expecting a different
> > type of StoreManager.
> >
> > This is the exception I get
> > org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> > org.datanucleus.store.schema.SchemaAwareStoreManager
> >
> > How can I use neo4j as a backing store in Apache Isis?
> > I read about nosql support in Isis, but is it not part of the
> > current
> > release?http://isis.apache.org/components/objectstores/nosql/about.h
> > tm
> > l
> >
> > Thanks!
> >
> > This question is also posted at -
> >
> > http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-wi
> > th
> > -apache-isis
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for
> the sole use of the recipient(s). Any use by others is prohibited. If
> you are not the intended recipient, please contact the sender and
> delete all copies of the message.
>
________________________________
This e-mail may contain Sprint proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.
To read WesBank's Disclaimer for this email click on the following address or copy into your Internet browser:
https://www.wesbank.co.za/wesbankcoza/about/legal/emaildisclaimer.xhtml
If you are unable to access the Disclaimer, send a blank e-mail to emaildisclaimer@wesbank.co.za and we will send you a copy of the Disclaimer.
________________________________
This e-mail may contain Sprint proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.
RE: How would I use neo4j with Apache Isis?
Posted by "Mabanga, Sizwe" <SM...@wesbank.co.za>.
Hi Guys
I'm incredibly excited about naked objects as a software design philosophy, but when I read up on Neo4j and graph databases (after reading this thread) I almost had an aneurysm.
These two (naked objects and graph databases) seem to be a match made in heaven! Persistence models in general can do with an elevation of relationships (edges) to first class entities as opposed to shallow composition relationships based on numerical constraints!
Isis viewers would simply then list an entity's (node) properties as usual, but the current list of collections (shallow compositional relationships) would be replaced with a list of rich relationships that the entity has.
To start with we can make the list of possible entity relationships static (developer defined) but later we should enable that users add new relationship types as and when needed (making them 1st class graph creators).
Isis's early adoption of this model could serve as an even bigger differentiator for Isis and align it more closely to the movement towards cleaner/stronger semantics in our code (the movement championed by Naked Objects).
Please excuse my excessive use of parenthesis and tell whether I'm on the money?
Thnx
Sizwe
-----Original Message-----
From: Branham, Jeremy [HR] [mailto:Jeremy.D.Branham@sprint.com]
Sent: 22 December 2014 09:42 PM
To: users@isis.apache.org
Subject: RE: How would I use neo4j with Apache Isis?
Great!
I'll be working with this quite a bit so I do expect to contribute further.
I've also subscribed to the StackOverflow tags in case there are others needing assistance with Isis + Neo4J.
Thank you Dan.
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
Sent: Monday, December 22, 2014 1:35 PM
To: users
Subject: Re: How would I use neo4j with Apache Isis?
Hi Jeremy,
OK, I've merged in that pull request, thanks again for providing.
I've also added a new page to the website, see [1] and [2] and updated the snapshot archetypes [3] (though probably still being built as I write
this...)
I've signposted all up as "experimental", so if you find any issues as you play with neo4j then do say.
Cheers
Dan
[1] http://isis.apache.org/documentation.html
[2] http://isis.apache.org/components/objectstores/jdo/using-neo4j.html
[3] http://isis.apache.org/intro/getting-started/simpleapp-archetype.html
On 22 December 2014 at 14:30, Branham, Jeremy [HR] < Jeremy.D.Branham@sprint.com> wrote:
> Dan -
> Thanks for the warm welcome and the consideration.
> I've never created a pull request before so this is exciting for me,
> especially given it's an Apache project.
> Apache has done so much for open source and I have a great respect for
> all contributors involved.
>
> I've updated the fork and recommitted.
> Thanks again!
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> Sent: Monday, December 22, 2014 2:32 AM
> To: users
> Subject: Re: How would I use neo4j with Apache Isis?
>
> Hi Jeremy,
>
> ... and welcome to the mailing list.
>
> Very nice to see you trying out Apache Isis with Neo4J, and submitting
> a patch already too [1] with pull request [2].
>
> To be completely honest, although one of the reasons we chose
> DataNucleus and JDO for the ORM was because it gave us NoSQL support
> "for free", there's very little experience of using it with anything
> other than against an RDBMS. That's not quite true: Maurizio Taverna,
> one of our committers, has successfully run Apache Isis against GAE,
> and we made one or two minor commits to enable that; there's a brief
> page on our website on the topic [3].
>
> Given the change you've made is so minor, I have no problems in
> merging in your pull request. That way, you're not maintaining your
> own fork, and if there are further changes that are needed then we can
> address them as need be.
>
> There are one or two minor tweaks to that PR, if you could address
> those and recreate then I'll merge them in.
>
> So thanks again... it'd be great to say (hand on heart) that we
> support running on Neo4J.
>
> Cheers
> Dan
>
> [1 ]https://issues.apache.org/jira/browse/ISIS-983
> [2] https://github.com/apache/isis/pull/16
> [3]
>
> http://isis.apache.org/components/objectstores/jdo/deploying-on-the-go
> ogle-app-engine.html
>
>
>
>
>
> On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
> Jeremy.D.Branham@sprint.com> wrote:
>
> > I'm not sure what the implications are, but I was able to get a
> > neo4j datastore working with Apache Isis by modifying
> > org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationCo
> > mp onents#createSchema in the "Isis Core Runtime module" to check if
> > the datanucleus StoreManager supports the SchemaAwareStoreManager
> > interface before casting.
> >
> > It is persisting data successfully.
> >
> >
> > private void createSchema(final Map<String, String> props, final
> > Set<String> classesToBePersisted) {
> > final JDOPersistenceManagerFactory jdopmf =
> > (JDOPersistenceManagerFactory)persistenceManagerFactory;
> > final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> > final StoreManager storeManager = nucleusContext.getStoreManager();
> > if (storeManager instanceof SchemaAwareStoreManager) {
> >
> > ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePers
> > is
> > ted,
> > asProperties(props));
> > }
> > }
> >
> >
> >
> > Jeremy D. Branham
> > Tel: **DOTNET
> >
> >
> > -----Original Message-----
> > From: Branham, Jeremy [HR]
> > Sent: Saturday, December 20, 2014 8:27 AM
> > To: users@isis.apache.org
> > Subject: How would I use neo4j with Apache Isis?
> >
> > I am attempting to use neo4j as a backing store for Apache Isis but
> > it looks like some development may be needed.
> > If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> > connection is initializing but Apache Isis is expecting a different
> > type of StoreManager.
> >
> > This is the exception I get
> > org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> > org.datanucleus.store.schema.SchemaAwareStoreManager
> >
> > How can I use neo4j as a backing store in Apache Isis?
> > I read about nosql support in Isis, but is it not part of the
> > current
> > release?http://isis.apache.org/components/objectstores/nosql/about.h
> > tm
> > l
> >
> > Thanks!
> >
> > This question is also posted at -
> >
> > http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-wi
> > th
> > -apache-isis
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for
> the sole use of the recipient(s). Any use by others is prohibited. If
> you are not the intended recipient, please contact the sender and
> delete all copies of the message.
>
________________________________
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RE: How would I use neo4j with Apache Isis?
Posted by "Branham, Jeremy [HR]" <Je...@sprint.com>.
Great!
I'll be working with this quite a bit so I do expect to contribute further.
I've also subscribed to the StackOverflow tags in case there are others needing assistance with Isis + Neo4J.
Thank you Dan.
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
Sent: Monday, December 22, 2014 1:35 PM
To: users
Subject: Re: How would I use neo4j with Apache Isis?
Hi Jeremy,
OK, I've merged in that pull request, thanks again for providing.
I've also added a new page to the website, see [1] and [2] and updated the snapshot archetypes [3] (though probably still being built as I write
this...)
I've signposted all up as "experimental", so if you find any issues as you play with neo4j then do say.
Cheers
Dan
[1] http://isis.apache.org/documentation.html
[2] http://isis.apache.org/components/objectstores/jdo/using-neo4j.html
[3] http://isis.apache.org/intro/getting-started/simpleapp-archetype.html
On 22 December 2014 at 14:30, Branham, Jeremy [HR] < Jeremy.D.Branham@sprint.com> wrote:
> Dan -
> Thanks for the warm welcome and the consideration.
> I've never created a pull request before so this is exciting for me,
> especially given it's an Apache project.
> Apache has done so much for open source and I have a great respect for
> all contributors involved.
>
> I've updated the fork and recommitted.
> Thanks again!
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> Sent: Monday, December 22, 2014 2:32 AM
> To: users
> Subject: Re: How would I use neo4j with Apache Isis?
>
> Hi Jeremy,
>
> ... and welcome to the mailing list.
>
> Very nice to see you trying out Apache Isis with Neo4J, and submitting
> a patch already too [1] with pull request [2].
>
> To be completely honest, although one of the reasons we chose
> DataNucleus and JDO for the ORM was because it gave us NoSQL support
> "for free", there's very little experience of using it with anything
> other than against an RDBMS. That's not quite true: Maurizio Taverna,
> one of our committers, has successfully run Apache Isis against GAE,
> and we made one or two minor commits to enable that; there's a brief
> page on our website on the topic [3].
>
> Given the change you've made is so minor, I have no problems in
> merging in your pull request. That way, you're not maintaining your
> own fork, and if there are further changes that are needed then we can
> address them as need be.
>
> There are one or two minor tweaks to that PR, if you could address
> those and recreate then I'll merge them in.
>
> So thanks again... it'd be great to say (hand on heart) that we
> support running on Neo4J.
>
> Cheers
> Dan
>
> [1 ]https://issues.apache.org/jira/browse/ISIS-983
> [2] https://github.com/apache/isis/pull/16
> [3]
>
> http://isis.apache.org/components/objectstores/jdo/deploying-on-the-go
> ogle-app-engine.html
>
>
>
>
>
> On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
> Jeremy.D.Branham@sprint.com> wrote:
>
> > I'm not sure what the implications are, but I was able to get a
> > neo4j datastore working with Apache Isis by modifying
> > org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationCo
> > mp onents#createSchema in the "Isis Core Runtime module" to check if
> > the datanucleus StoreManager supports the SchemaAwareStoreManager
> > interface before casting.
> >
> > It is persisting data successfully.
> >
> >
> > private void createSchema(final Map<String, String> props, final
> > Set<String> classesToBePersisted) {
> > final JDOPersistenceManagerFactory jdopmf =
> > (JDOPersistenceManagerFactory)persistenceManagerFactory;
> > final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> > final StoreManager storeManager = nucleusContext.getStoreManager();
> > if (storeManager instanceof SchemaAwareStoreManager) {
> >
> > ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePers
> > is
> > ted,
> > asProperties(props));
> > }
> > }
> >
> >
> >
> > Jeremy D. Branham
> > Tel: **DOTNET
> >
> >
> > -----Original Message-----
> > From: Branham, Jeremy [HR]
> > Sent: Saturday, December 20, 2014 8:27 AM
> > To: users@isis.apache.org
> > Subject: How would I use neo4j with Apache Isis?
> >
> > I am attempting to use neo4j as a backing store for Apache Isis but
> > it looks like some development may be needed.
> > If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> > connection is initializing but Apache Isis is expecting a different
> > type of StoreManager.
> >
> > This is the exception I get
> > org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> > org.datanucleus.store.schema.SchemaAwareStoreManager
> >
> > How can I use neo4j as a backing store in Apache Isis?
> > I read about nosql support in Isis, but is it not part of the
> > current
> > release?http://isis.apache.org/components/objectstores/nosql/about.h
> > tm
> > l
> >
> > Thanks!
> >
> > This question is also posted at -
> >
> > http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-wi
> > th
> > -apache-isis
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited.
> > If you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for
> the sole use of the recipient(s). Any use by others is prohibited. If
> you are not the intended recipient, please contact the sender and
> delete all copies of the message.
>
________________________________
This e-mail may contain Sprint proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.
Re: How would I use neo4j with Apache Isis?
Posted by Dan Haywood <da...@haywood-associates.co.uk>.
Hi Jeremy,
OK, I've merged in that pull request, thanks again for providing.
I've also added a new page to the website, see [1] and [2] and updated the
snapshot archetypes [3] (though probably still being built as I write
this...)
I've signposted all up as "experimental", so if you find any issues as you
play with neo4j then do say.
Cheers
Dan
[1] http://isis.apache.org/documentation.html
[2] http://isis.apache.org/components/objectstores/jdo/using-neo4j.html
[3] http://isis.apache.org/intro/getting-started/simpleapp-archetype.html
On 22 December 2014 at 14:30, Branham, Jeremy [HR] <
Jeremy.D.Branham@sprint.com> wrote:
> Dan -
> Thanks for the warm welcome and the consideration.
> I've never created a pull request before so this is exciting for me,
> especially given it's an Apache project.
> Apache has done so much for open source and I have a great respect for all
> contributors involved.
>
> I've updated the fork and recommitted.
> Thanks again!
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
> Sent: Monday, December 22, 2014 2:32 AM
> To: users
> Subject: Re: How would I use neo4j with Apache Isis?
>
> Hi Jeremy,
>
> ... and welcome to the mailing list.
>
> Very nice to see you trying out Apache Isis with Neo4J, and submitting a
> patch already too [1] with pull request [2].
>
> To be completely honest, although one of the reasons we chose DataNucleus
> and JDO for the ORM was because it gave us NoSQL support "for free",
> there's very little experience of using it with anything other than against
> an RDBMS. That's not quite true: Maurizio Taverna, one of our committers,
> has successfully run Apache Isis against GAE, and we made one or two minor
> commits to enable that; there's a brief page on our website on the topic
> [3].
>
> Given the change you've made is so minor, I have no problems in merging in
> your pull request. That way, you're not maintaining your own fork, and if
> there are further changes that are needed then we can address them as need
> be.
>
> There are one or two minor tweaks to that PR, if you could address those
> and recreate then I'll merge them in.
>
> So thanks again... it'd be great to say (hand on heart) that we support
> running on Neo4J.
>
> Cheers
> Dan
>
> [1 ]https://issues.apache.org/jira/browse/ISIS-983
> [2] https://github.com/apache/isis/pull/16
> [3]
>
> http://isis.apache.org/components/objectstores/jdo/deploying-on-the-google-app-engine.html
>
>
>
>
>
> On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
> Jeremy.D.Branham@sprint.com> wrote:
>
> > I'm not sure what the implications are, but I was able to get a neo4j
> > datastore working with Apache Isis by modifying
> > org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationComp
> > onents#createSchema in the "Isis Core Runtime module" to check if the
> > datanucleus StoreManager supports the SchemaAwareStoreManager
> > interface before casting.
> >
> > It is persisting data successfully.
> >
> >
> > private void createSchema(final Map<String, String> props, final
> > Set<String> classesToBePersisted) {
> > final JDOPersistenceManagerFactory jdopmf =
> > (JDOPersistenceManagerFactory)persistenceManagerFactory;
> > final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> > final StoreManager storeManager = nucleusContext.getStoreManager();
> > if (storeManager instanceof SchemaAwareStoreManager) {
> >
> > ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePersis
> > ted,
> > asProperties(props));
> > }
> > }
> >
> >
> >
> > Jeremy D. Branham
> > Tel: **DOTNET
> >
> >
> > -----Original Message-----
> > From: Branham, Jeremy [HR]
> > Sent: Saturday, December 20, 2014 8:27 AM
> > To: users@isis.apache.org
> > Subject: How would I use neo4j with Apache Isis?
> >
> > I am attempting to use neo4j as a backing store for Apache Isis but it
> > looks like some development may be needed.
> > If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> > connection is initializing but Apache Isis is expecting a different
> > type of StoreManager.
> >
> > This is the exception I get
> > org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> > org.datanucleus.store.schema.SchemaAwareStoreManager
> >
> > How can I use neo4j as a backing store in Apache Isis?
> > I read about nosql support in Isis, but is it not part of the current
> > release?http://isis.apache.org/components/objectstores/nosql/about.htm
> > l
> >
> > Thanks!
> >
> > This question is also posted at -
> >
> > http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-with
> > -apache-isis
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited. If
> > you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
> > ________________________________
> >
> > This e-mail may contain Sprint proprietary information intended for
> > the sole use of the recipient(s). Any use by others is prohibited. If
> > you are not the intended recipient, please contact the sender and
> > delete all copies of the message.
> >
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for the
> sole use of the recipient(s). Any use by others is prohibited. If you are
> not the intended recipient, please contact the sender and delete all copies
> of the message.
>
RE: How would I use neo4j with Apache Isis?
Posted by "Branham, Jeremy [HR]" <Je...@sprint.com>.
Dan -
Thanks for the warm welcome and the consideration.
I've never created a pull request before so this is exciting for me, especially given it's an Apache project.
Apache has done so much for open source and I have a great respect for all contributors involved.
I've updated the fork and recommitted.
Thanks again!
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Dan Haywood [mailto:dan@haywood-associates.co.uk]
Sent: Monday, December 22, 2014 2:32 AM
To: users
Subject: Re: How would I use neo4j with Apache Isis?
Hi Jeremy,
... and welcome to the mailing list.
Very nice to see you trying out Apache Isis with Neo4J, and submitting a patch already too [1] with pull request [2].
To be completely honest, although one of the reasons we chose DataNucleus and JDO for the ORM was because it gave us NoSQL support "for free", there's very little experience of using it with anything other than against an RDBMS. That's not quite true: Maurizio Taverna, one of our committers, has successfully run Apache Isis against GAE, and we made one or two minor commits to enable that; there's a brief page on our website on the topic [3].
Given the change you've made is so minor, I have no problems in merging in your pull request. That way, you're not maintaining your own fork, and if there are further changes that are needed then we can address them as need be.
There are one or two minor tweaks to that PR, if you could address those and recreate then I'll merge them in.
So thanks again... it'd be great to say (hand on heart) that we support running on Neo4J.
Cheers
Dan
[1 ]https://issues.apache.org/jira/browse/ISIS-983
[2] https://github.com/apache/isis/pull/16
[3]
http://isis.apache.org/components/objectstores/jdo/deploying-on-the-google-app-engine.html
On 21 December 2014 at 01:07, Branham, Jeremy [HR] < Jeremy.D.Branham@sprint.com> wrote:
> I'm not sure what the implications are, but I was able to get a neo4j
> datastore working with Apache Isis by modifying
> org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationComp
> onents#createSchema in the "Isis Core Runtime module" to check if the
> datanucleus StoreManager supports the SchemaAwareStoreManager
> interface before casting.
>
> It is persisting data successfully.
>
>
> private void createSchema(final Map<String, String> props, final
> Set<String> classesToBePersisted) {
> final JDOPersistenceManagerFactory jdopmf =
> (JDOPersistenceManagerFactory)persistenceManagerFactory;
> final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> final StoreManager storeManager = nucleusContext.getStoreManager();
> if (storeManager instanceof SchemaAwareStoreManager) {
>
> ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePersis
> ted,
> asProperties(props));
> }
> }
>
>
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Branham, Jeremy [HR]
> Sent: Saturday, December 20, 2014 8:27 AM
> To: users@isis.apache.org
> Subject: How would I use neo4j with Apache Isis?
>
> I am attempting to use neo4j as a backing store for Apache Isis but it
> looks like some development may be needed.
> If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> connection is initializing but Apache Isis is expecting a different
> type of StoreManager.
>
> This is the exception I get
> org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> org.datanucleus.store.schema.SchemaAwareStoreManager
>
> How can I use neo4j as a backing store in Apache Isis?
> I read about nosql support in Isis, but is it not part of the current
> release?http://isis.apache.org/components/objectstores/nosql/about.htm
> l
>
> Thanks!
>
> This question is also posted at -
>
> http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-with
> -apache-isis
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for
> the sole use of the recipient(s). Any use by others is prohibited. If
> you are not the intended recipient, please contact the sender and
> delete all copies of the message.
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for
> the sole use of the recipient(s). Any use by others is prohibited. If
> you are not the intended recipient, please contact the sender and
> delete all copies of the message.
>
________________________________
This e-mail may contain Sprint proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.
Re: How would I use neo4j with Apache Isis?
Posted by Dan Haywood <da...@haywood-associates.co.uk>.
Hi Jeremy,
... and welcome to the mailing list.
Very nice to see you trying out Apache Isis with Neo4J, and submitting a
patch already too [1] with pull request [2].
To be completely honest, although one of the reasons we chose DataNucleus
and JDO for the ORM was because it gave us NoSQL support "for free",
there's very little experience of using it with anything other than against
an RDBMS. That's not quite true: Maurizio Taverna, one of our committers,
has successfully run Apache Isis against GAE, and we made one or two minor
commits to enable that; there's a brief page on our website on the topic
[3].
Given the change you've made is so minor, I have no problems in merging in
your pull request. That way, you're not maintaining your own fork, and if
there are further changes that are needed then we can address them as need
be.
There are one or two minor tweaks to that PR, if you could address those
and recreate then I'll merge them in.
So thanks again... it'd be great to say (hand on heart) that we support
running on Neo4J.
Cheers
Dan
[1 ]https://issues.apache.org/jira/browse/ISIS-983
[2] https://github.com/apache/isis/pull/16
[3]
http://isis.apache.org/components/objectstores/jdo/deploying-on-the-google-app-engine.html
On 21 December 2014 at 01:07, Branham, Jeremy [HR] <
Jeremy.D.Branham@sprint.com> wrote:
> I'm not sure what the implications are, but I was able to get a neo4j
> datastore working with Apache Isis by modifying
> org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationComponents#createSchema
> in the "Isis Core Runtime module" to check if the datanucleus StoreManager
> supports the SchemaAwareStoreManager interface before casting.
>
> It is persisting data successfully.
>
>
> private void createSchema(final Map<String, String> props, final
> Set<String> classesToBePersisted) {
> final JDOPersistenceManagerFactory jdopmf =
> (JDOPersistenceManagerFactory)persistenceManagerFactory;
> final NucleusContext nucleusContext = jdopmf.getNucleusContext();
> final StoreManager storeManager = nucleusContext.getStoreManager();
> if (storeManager instanceof SchemaAwareStoreManager) {
>
> ((SchemaAwareStoreManager)storeManager).createSchema(classesToBePersisted,
> asProperties(props));
> }
> }
>
>
>
> Jeremy D. Branham
> Tel: **DOTNET
>
>
> -----Original Message-----
> From: Branham, Jeremy [HR]
> Sent: Saturday, December 20, 2014 8:27 AM
> To: users@isis.apache.org
> Subject: How would I use neo4j with Apache Isis?
>
> I am attempting to use neo4j as a backing store for Apache Isis but it
> looks like some development may be needed.
> If I add the datanucleus-neo4j dependency, it appears the neo4j JDO
> connection is initializing but Apache Isis is expecting a different type of
> StoreManager.
>
> This is the exception I get
> org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to
> org.datanucleus.store.schema.SchemaAwareStoreManager
>
> How can I use neo4j as a backing store in Apache Isis?
> I read about nosql support in Isis, but is it not part of the current
> release?http://isis.apache.org/components/objectstores/nosql/about.html
>
> Thanks!
>
> This question is also posted at -
>
> http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-with-apache-isis
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for the
> sole use of the recipient(s). Any use by others is prohibited. If you are
> not the intended recipient, please contact the sender and delete all copies
> of the message.
>
> ________________________________
>
> This e-mail may contain Sprint proprietary information intended for the
> sole use of the recipient(s). Any use by others is prohibited. If you are
> not the intended recipient, please contact the sender and delete all copies
> of the message.
>
RE: How would I use neo4j with Apache Isis?
Posted by "Branham, Jeremy [HR]" <Je...@sprint.com>.
I'm not sure what the implications are, but I was able to get a neo4j datastore working with Apache Isis by modifying org.apache.isis.objectstore.jdo.datanucleus.DataNucleusApplicationComponents#createSchema in the "Isis Core Runtime module" to check if the datanucleus StoreManager supports the SchemaAwareStoreManager interface before casting.
It is persisting data successfully.
private void createSchema(final Map<String, String> props, final Set<String> classesToBePersisted) {
final JDOPersistenceManagerFactory jdopmf = (JDOPersistenceManagerFactory)persistenceManagerFactory;
final NucleusContext nucleusContext = jdopmf.getNucleusContext();
final StoreManager storeManager = nucleusContext.getStoreManager();
if (storeManager instanceof SchemaAwareStoreManager) {
((SchemaAwareStoreManager)storeManager).createSchema(classesToBePersisted, asProperties(props));
}
}
Jeremy D. Branham
Tel: **DOTNET
-----Original Message-----
From: Branham, Jeremy [HR]
Sent: Saturday, December 20, 2014 8:27 AM
To: users@isis.apache.org
Subject: How would I use neo4j with Apache Isis?
I am attempting to use neo4j as a backing store for Apache Isis but it looks like some development may be needed.
If I add the datanucleus-neo4j dependency, it appears the neo4j JDO connection is initializing but Apache Isis is expecting a different type of StoreManager.
This is the exception I get
org.datanucleus.store.neo4j.Neo4jStoreManager cannot be cast to org.datanucleus.store.schema.SchemaAwareStoreManager
How can I use neo4j as a backing store in Apache Isis?
I read about nosql support in Isis, but is it not part of the current release?http://isis.apache.org/components/objectstores/nosql/about.html
Thanks!
This question is also posted at -
http://stackoverflow.com/questions/27579653/how-would-i-use-neo4j-with-apache-isis
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