| Time |
S |
Nick |
Message |
| 00:57 |
|
pdurbin |
monksy: did that help? |
| 03:43 |
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shelajev_ |
Spring DATA! |
| 13:18 |
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pdurbin |
shelajev_: hmm? :) |
| 13:39 |
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ThomasD |
Yo hi Oleg! I'll support Ollis talk a bit by answering questions in the chat :) |
| 13:42 |
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| 14:11 |
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shelajev_ |
that's awesome! |
| 14:11 |
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shelajev_ |
Thanks Thomas! |
| 14:59 |
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| 15:31 |
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sjmaple |
30 mins till a vJUG session! Yay :D |
| 15:32 |
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ThomasD |
ok :) |
| 15:36 |
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| 15:40 |
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_ollie |
shelajev: how much time do we actually have? |
| 15:44 |
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| 15:48 |
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shelajev |
hey, Oliver! |
| 15:48 |
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shelajev |
do you mean the time of the session? |
| 15:49 |
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_ollie |
yes, how much of it supposed to be presentation? |
| 15:50 |
|
shelajev |
60 minutes |
| 15:51 |
|
shelajev |
but that's not a hard requirement |
| 15:51 |
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_ollie |
Oh no worries, I just wanted to get a rough idea. |
| 15:52 |
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| 15:55 |
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HarmeetSingh |
Hello @Vjug team |
| 15:55 |
|
HarmeetSingh |
hello to all |
| 15:56 |
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| 15:57 |
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Maldivia |
howdy |
| 15:57 |
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| 15:58 |
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| 15:58 |
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shelajev |
hello! |
| 15:58 |
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vc |
hello |
| 15:59 |
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| 15:59 |
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vikasgoyat |
HI All |
| 15:59 |
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| 15:59 |
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HarmeetSingh |
waiting waiting waiting waiting waiting :D |
| 16:00 |
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HarmeetSingh |
hey @simon when the session start ? |
| 16:00 |
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| 16:03 |
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bubbles |
bing |
| 16:03 |
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| 16:03 |
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shelajev |
right now :) there's a 30 seconds delay |
| 16:04 |
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| 16:05 |
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ThomasD |
okay, after refresh I can see the stream :) |
| 16:05 |
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| 16:06 |
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| 16:06 |
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monksy |
thats been happening for quite a while (you have to refresh when the stream "starts") |
| 16:07 |
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| 16:07 |
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| 16:07 |
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pathfinder2104 |
Hi all |
| 16:08 |
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| 16:08 |
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sjmaple |
Hey everyone! |
| 16:08 |
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| 16:09 |
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sjmaple |
yeh, I'm not sure how that can easily be fixed... will look into it |
| 16:09 |
|
ThomasD |
We need virtual cheer sounds :) |
| 16:09 |
|
HarmeetSingh |
hey @simon how was @devox going? |
| 16:09 |
|
sjmaple |
To follow Oliver, he's on twitter at http://twitter.com/olivergierke |
| 16:09 |
|
ThomasD |
huhu |
| 16:09 |
|
shelajev |
shout out to Thomas! :) |
| 16:10 |
|
shelajev |
and Michael Hunger from Neo4j! |
| 16:10 |
|
sjmaple |
@HarmeetSingh it was great! both UK and PL were amazing fun! :) |
| 16:10 |
|
HarmeetSingh |
when i seen videos of @devox at youtube, it was really excite me. |
| 16:10 |
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| 16:12 |
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| 16:12 |
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| 16:13 |
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| 16:14 |
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| 16:16 |
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pm771 |
Where does Hadoop fit in the diagram? |
| 16:16 |
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| 16:17 |
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| 16:19 |
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| 16:19 |
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ThomasD |
well hadoop is not a database (but rather a framework for distributed data processing)… but there is HBase which is a columnar datastore based on hadoop - so one could say that hbase it fits into the non-relational area… |
| 16:19 |
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| 16:19 |
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pathfinder2104 |
I think you can use Cassandra and Mongo DB with hadoop |
| 16:19 |
|
pathfinder2104 |
right? |
| 16:21 |
|
pm771 |
thx |
| 16:22 |
|
sjmaple |
if you're interested in Cassandra... :) http://www.meetup.com/virtualJUG/events/223491297/ |
| 16:22 |
|
pathfinder2104 |
thanx :) :) |
| 16:23 |
|
sjmaple |
only just added it today |
| 16:23 |
|
HarmeetSingh |
yup, i got it :) |
| 16:23 |
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| 16:24 |
|
ThomasD |
you can pull in data from hdfs into cassandra and mongodb provides a connector to interact with hadoop |
| 16:24 |
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| 16:24 |
|
ThomasD |
for mongodb you can have a look at this presentation; https://www.mongodb.com/presentations/webinar-using-hadoop-mongodb-together?_ga=1.161289341.1510890496.1372754467 |
| 16:25 |
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| 16:30 |
|
HarmeetSingh |
the repositories create inner classes for implementation? |
| 16:31 |
|
HarmeetSingh |
the repositories create inner classes for DAO implementation? |
| 16:32 |
|
ThomasD |
the actual store specific repository implementation are public classes… like e.g.: org.springframework.data.jpa.repository.support.SimpleJpaRepository, org.springframework.data.mongodb.repository.support.SimpleMongoRepository |
| 16:33 |
|
ThomasD |
but you don't need to interact with them directly … as Oliver will show in a few minutes :) |
| 16:33 |
|
HarmeetSingh |
But these repositories are interfaces, how they provide implementations |
| 16:33 |
|
HarmeetSingh |
ok @ThomasD :) |
| 16:33 |
|
ThomasD |
wait and be surprised :) |
| 16:34 |
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| 16:37 |
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| 16:38 |
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| 16:38 |
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sjmaple |
that constructor signature looks really weird without an access modifier |
| 16:38 |
|
ThomasD |
@HarmeetSignh … the magic trick is that we dynamically create a proxy (JDK DynamicProxy) that implements the repository interface which intercepts all calls to the repository and propagates them either to the appropriate store specific implementation class or we generate a query on the fly … more on that in a few minutes :) |
| 16:38 |
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| 16:39 |
|
Cucu |
can the slide be more focused, it is blurry |
| 16:40 |
|
gauravbrills |
this is still a integration test can we do it without boot loading the whole context |
| 16:40 |
|
sjmaple |
Cucu: click on the cog and update your video quality |
| 16:40 |
|
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| 16:40 |
|
sjmaple |
crank it up to HD if your interwebs allow |
| 16:41 |
|
pathfinder2104 |
@Cucu I thought it's only me |
| 16:41 |
|
pathfinder2104 |
I am aslo facing the same issue |
| 16:41 |
|
gauravbrills |
I use spring data and test via this way with spring boot but it takes tie for boot to load everything up should be a faster way /? |
| 16:41 |
|
pathfinder2104 |
I tried 480P but not working |
| 16:41 |
|
sjmaple |
would you like font a bit bigger maybe? |
| 16:42 |
|
pathfinder2104 |
yes please |
| 16:42 |
|
HarmeetSingh |
@pathfinder2104 relod the page again |
| 16:42 |
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| 16:43 |
|
Cucu |
better thanks |
| 16:43 |
|
pm771 |
It is better |
| 16:43 |
|
ThomasD |
you should have a look at context management and caching int he reference documentation on spring testing: http://docs.spring.io/spring/docs/current/spring-framework-reference/html/testing.html#testing-ctx-management |
| 16:43 |
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| 16:44 |
|
sjmaple |
cool! |
| 16:44 |
|
pathfinder2104 |
yea |
| 16:44 |
|
pathfinder2104 |
:) |
| 16:44 |
|
pathfinder2104 |
thanx |
| 16:45 |
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| 16:45 |
|
gauravbrills |
ahh ok thomas will try that hope I can wire it up in a spring boot app too |
| 16:46 |
|
HarmeetSingh |
its really cool |
| 16:47 |
|
ThomasD |
with respect to speeding up unit tests in a Spring Boot app you could also have a look at: http://stackoverflow.com/questions/28123299/spring-boot-module-based-integration-testing |
| 16:51 |
|
HarmeetSingh |
STS provide really rich auto suggestions for @SpringData |
| 16:51 |
|
ThomasD |
yes, indeed :) |
| 16:52 |
|
Miit |
Oliver, what about performance optimization and testing of this? |
| 16:52 |
|
ThomasD |
@Milit can you be more specifc? |
| 16:53 |
|
ThomasD |
the query is only generated once … and it's basically registered with the datastore specific "prepared statement" like functionality … in case of JPA we generate a Jpa CriteriaQuery once and reuse that with different parameters for subsequent method invocations |
| 16:54 |
|
ThomasD |
you can also apply the Spring @Cache caching here if you like |
| 16:54 |
|
HarmeetSingh |
Is it also possible to write native queries? |
| 16:54 |
|
ThomasD |
sure |
| 16:54 |
|
ThomasD |
@Query |
| 16:54 |
|
HarmeetSingh |
oh, really .. |
| 16:54 |
|
ThomasD |
List<User> findAllUsersWithCustomQuery()… |
| 16:56 |
|
pm771 |
Where are the examples? On GitHub? |
| 16:56 |
|
ThomasD |
in a Repository<User,Long> looks up a query (in store specific properties files like for jpa e.g.: jpa-named-queries.proeprties or use the store specific facilities for loading queries -> like orm.xml in case of hibeernate) |
| 16:56 |
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| 16:56 |
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ThomasD |
the key for the query in the example would be User.findAllUsersWithCustomQuery |
| 16:57 |
|
ThomasD |
There is an official spring-data-examples repository on github: https://github.com/spring-projects/spring-data-examples |
| 16:58 |
|
ThomasD |
you can find all examples and demos for some special features in there :) |
| 16:58 |
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| 16:58 |
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pm771 |
@ThomasD - Thanks |
| 16:59 |
|
HarmeetSingh |
In the Spring-Data-Neo4J, they provide the "Direction.BOTH" for relationship, but Neo4J have no support regarding bidirectional relationships between nodes, So what actually "Direction.BOTH" is used? Please click on below link: |
| 16:59 |
|
HarmeetSingh |
http://stackoverflow.com/questions/28194784/how-to-implement-a-bidirectional-relationship-in-spring-data-neo4j |
| 16:59 |
|
HarmeetSingh |
http://stackoverflow.com/questions/18166845/naming-convention-for-bidirectional-relationships-in-neo4j-using-spring-data |
| 16:59 |
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| 17:01 |
|
Miit |
@ThomasD, sorry was at full screen. Oliver managed to answer the gist. |
| 17:02 |
|
ThomasD |
Regarding Neo4j Direction.BOTH - thats part of their api: http://neo4j.com/docs/2.2.3/javadocs/ |
| 17:02 |
|
ThomasD |
http://neo4j.com/docs/2.2.3/javadocs/org/neo4j/graphdb/Direction.html |
| 17:02 |
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| 17:02 |
|
ThomasD |
so that is nothing spring data specific |
| 17:03 |
|
Miit |
@HarmeetSingh, thanks for the links |
| 17:05 |
|
ThomasD |
you can find the starbucks store search example application here: https://github.com/spring-projects/spring-data-examples/tree/master/rest/starbucks |
| 17:07 |
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| 17:07 |
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sjmaple |
coming up to the end, any last questions for Oliver? |
| 17:07 |
|
HarmeetSingh |
welcome @Miit |
| 17:07 |
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| 17:07 |
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sjmaple |
or for ThomasD :) |
| 17:08 |
|
HarmeetSingh |
yes :) |
| 17:08 |
|
gauravbrills |
ways to extend spring data rest for custom links and endpoints |
| 17:08 |
|
HarmeetSingh |
@Thomas in doc they mention "Defines both incoming and outgoing relationships." |
| 17:08 |
|
gauravbrills |
also versioning support for rest |
| 17:09 |
|
gauravbrills |
and etag support |
| 17:09 |
|
ThomasD |
HAL specification -> http://stateless.co/hal_specification.html |
| 17:09 |
|
HarmeetSingh |
When i use BOTH, there are no Bidirectional relationships are created. |
| 17:11 |
|
HarmeetSingh |
Spring-Data-Neo4J provide any unique generator for generate nodes id unique? |
| 17:13 |
|
HarmeetSingh |
because neo4j manage id with different way, and most of them recommend generates ids manually. |
| 17:15 |
|
ThomasD |
we recently added support for versioning / etag support in gosling |
| 17:15 |
|
ThomasD |
gosling m1 release |
| 17:16 |
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| 17:16 |
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gauravbrills |
ahh thomasD any links to show tht |
| 17:16 |
|
gauravbrills |
anyways will check out |
| 17:16 |
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| 17:17 |
|
yasmans |
Is there auto-completion for Intellij Idea? |
| 17:17 |
|
gauravbrills |
implementing spring data rest for our api as of now with boot |
| 17:17 |
|
_ollie |
gauravbrills: https://github.com/spring-projects/spring-data-examples/tree/master/rest/headers |
| 17:17 |
|
ThomasD |
https://github.com/spring-projects/spring-data-examples/tree/master/rest/headers |
| 17:17 |
|
ThomasD |
… to slow :) |
| 17:17 |
|
_ollie |
:) |
| 17:17 |
|
ArunM |
thanks for the brilliant session !!!! |
| 17:18 |
|
gauravbrills |
thx |
| 17:18 |
|
_ollie |
We even updated the reference docs today on that one… http://docs.spring.io/spring-data/rest/docs/current-SNAPSHOT/reference/html/#conditional |
| 17:18 |
|
ThomasD |
:) Thank you too! |
| 17:19 |
|
pathfinder2104 |
thank you all for this session :) :) |
| 17:19 |
|
sjmaple |
in case anyone wants a shirt like the one all of us were wearing, you can get one here (although restrictions on delivery) https://zeroturnaround.com/software/xrebel/trial/tshirt/ |
| 17:19 |
|
HarmeetSingh |
Thanks for the excellent session |
| 17:19 |
|
gauravbrills |
thx fr the session Olivier thomas :) |
| 17:19 |
|
kossmoboleat |
Thanks for the session, especially the rest stuff was amazing! |
| 17:20 |
|
pathfinder2104 |
Not available in India :) :) |
| 17:20 |
|
HarmeetSingh |
But i still have doubt in "Direction.BOTH" |
| 17:20 |
|
pathfinder2104 |
that T-Shirt :) |
| 17:20 |
|
HarmeetSingh |
ohh.. its my bad luck |
| 17:21 |
|
pathfinder2104 |
mine too |
| 17:21 |
|
pathfinder2104 |
:) |
| 17:21 |
|
HarmeetSingh |
:) |
| 17:21 |
|
pathfinder2104 |
bye bye guys |
| 17:22 |
|
_ollie |
bye! Thanks for attending! |
| 17:22 |
|
HarmeetSingh |
bye bye @vjug and team |
| 17:34 |
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