8:02 a.m.
Hi,
I have a problem in getting through the querying feature of infinispan. I am
using the technical preview listed in this wiki
page<http://www.jboss.org/community/wiki/QueryingInfinispan>with the
help of the sample code provided in the same page.
I used the following properties for the second argument in QueryHelper
Constructor.
#hibernate.properties
hibernate.search.default.directory_provider
org.hibernate.search.store.FSDirectoryProvider
hibernate.search.default.indexBase=/usr/vin/lucene/indexes
This is my class for Hibernate Search
@ProvidedId
@Indexed
public class Item {
@Field
private String name;
@Field
private String description;
...// getters and setters
}
I have included the @ProvidedId since QueryHelper instantiation validates
the classes based on this annotation.
*Note :: QueryHelper.validateClasses() -- This is to check that both the
@ProvidedId is present and the the @DocumentId is not present. This is
because don't want both of these 2 annotations used at the same time.*
When I used the @Indexed annotation for the above class, it throws an
exception while instantiating the QueryHelper.
<Exception Snippet>
java.lang.NullPointerException
at
org.hibernate.search.engine.DocumentBuilderIndexedEntity.init(DocumentBuilderIndexedEntity.java:151)
at
org.hibernate.search.engine.DocumentBuilderContainedEntity.<init>(DocumentBuilderContainedEntity.java:93)
at
org.hibernate.search.engine.DocumentBuilderIndexedEntity.<init>(DocumentBuilderIndexedEntity.java:128)
at
org.hibernate.search.impl.SearchFactoryImpl.initDocumentBuilders(SearchFactoryImpl.java:409)
at
org.hibernate.search.impl.SearchFactoryImpl.<init>(SearchFactoryImpl.java:119)
at
org.infinispan.query.backend.QueryHelper.<init>(QueryHelper.java:87)
<Exception Snippet>
When I removed that @Indexed annotation, QueryHelper got instantiated but it
throwed some exception when it hits CacheQuery.getBasicQuery() method, where
it forms lucene query string with the help of QueryParser.
org.hibernate.HibernateException: There are no mapped entities. Don't forget
to add @Indexed to at least one class.
Please let me know if I missed anything here.
Thanks in advance,
Vinoth
11:34 a.m.
Hiya Vinoth,
I just ran my tests locally, and they seem to be working fine.
My class in my test looks like this: -
@ProvidedId(bridge = @FieldBridge(impl = StringBridge.class))
@Indexed(index = "person")
public class Person implements Serializable {
@Field(store = Store.YES)
private String name;
@Field(store = Store.YES)
private String blurb;
@Field(store = Store.YES, index = Index.UN_TOKENIZED)
private int age;
Perhaps if you have a look at the differences between our annotations
and have a play around you'll be able to find out what the issue is. I
used exactly the same annotations as you did
On 19 Nov 2009, at 07:02, Vinoth wrote:
Hi,
I have a problem in getting through the querying feature of
infinispan. I am using the technical preview listed in this wiki
page with the help of the sample code provided in the same page.
I used the following properties for the second argument in
QueryHelper Constructor.
#hibernate.properties
hibernate.search.default.directory_provider
org.hibernate.search.store.FSDirectoryProvider
hibernate.search.default.indexBase=/usr/vin/lucene/indexes
This is my class for Hibernate Search
@ProvidedId
@Indexed
public class Item {
@Field
private String name;
@Field
private String description;
...// getters and setters
}
I have included the @ProvidedId since QueryHelper instantiation
validates the classes based on this annotation.
Note :: QueryHelper.validateClasses() -- This is to check that both
the @ProvidedId is present and the the @DocumentId is not present.
This is because don't want both of these 2 annotations used at the
same time.
When I used the @Indexed annotation for the above class, it throws
an exception while instantiating the QueryHelper.
<Exception Snippet>
java.lang.NullPointerException
at
org.hibernate.search.engine.DocumentBuilderIndexedEntity.init
(DocumentBuilderIndexedEntity.java:151)
at
org.hibernate.search.engine.DocumentBuilderContainedEntity.<init>
(DocumentBuilderContainedEntity.java:93)
at
org.hibernate.search.engine.DocumentBuilderIndexedEntity.<init>
(DocumentBuilderIndexedEntity.java:128)
at
org.hibernate.search.impl.SearchFactoryImpl.initDocumentBuilders
(SearchFactoryImpl.java:409)
at org.hibernate.search.impl.SearchFactoryImpl.<init>
(SearchFactoryImpl.java:119)
at org.infinispan.query.backend.QueryHelper.<init>
(QueryHelper.java:87)
<Exception Snippet>
When I removed that @Indexed annotation, QueryHelper got
instantiated but it throwed some exception when it hits
CacheQuery.getBasicQuery() method, where it forms lucene query
string with the help of QueryParser.
org.hibernate.HibernateException: There are no mapped entities.
Don't forget to add @Indexed to at least one class.
Yes, Hibernate Search will throw an exception if you don't specify if
any of your classes are Entities. If there aren't any entities then it
doesn't know what to index :-).
Please let me know if I missed anything here.
Thanks in advance,
Vinoth
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Navin Surtani
Intern Infinispan
Intern JBoss Cache Searchable
11:41 a.m.
Sorry I hit send before I could finish typing what I wanted to earlier
- my mistake.
@ProvidedId(bridge = @FieldBridge(impl = StringBridge.class))
@Indexed(index = "person")
public class Person implements Serializable {
@Field(store = Store.YES)
private String name;
@Field(store = Store.YES)
private String blurb;
@Field(store = Store.YES, index = Index.UN_TOKENIZED)
private int age;
All my test classes that I use for this implement Serializable as
well. Although, this isn't essential and pass locally when I remove
that implementation.
Navin Surtani
Intern Infinispan
Intern JBoss Cache Searchable
12:58 p.m.
I remember we had that bug, it might be an issue with the version of
HSearch used, which one are you using?
On 19 nov. 09, at 11:41, Navin Surtani wrote:
Sorry I hit send before I could finish typing what I wanted to
earlier - my mistake.
>
> @ProvidedId(bridge = @FieldBridge(impl = StringBridge.class))
> @Indexed(index = "person")
> public class Person implements Serializable {
> @Field(store = Store.YES)
> private String name;
> @Field(store = Store.YES)
> private String blurb;
> @Field(store = Store.YES, index = Index.UN_TOKENIZED)
> private int age;
>
>
All my test classes that I use for this implement Serializable as
well. Although, this isn't essential and pass locally when I remove
that implementation.
Navin Surtani
Intern Infinispan
Intern JBoss Cache Searchable
_______________________________________________
infinispan-dev mailing list
infinispan-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/infinispan-dev
2:01 p.m.
I am currently using Hibernate Search 3.1.1 GA
On Thu, Nov 19, 2009 at 5:28 PM, Emmanuel Bernard <emmanuel(a)hibernate.org>wrote:
I remember we had that bug, it might be an issue with the version of
HSearch used, which one are you using?
On 19 nov. 09, at 11:41, Navin Surtani wrote:
Sorry I hit send before I could finish typing what I wanted to earlier - my
mistake.
@ProvidedId(bridge = @FieldBridge(impl = StringBridge.class))
@Indexed(index = "person")
public class Person implements Serializable {
@Field(store = Store.YES)
private String name;
@Field(store = Store.YES)
private String blurb;
@Field(store = Store.YES, index = Index.UN_TOKENIZED)
private int age;
All my test classes that I use for this implement Serializable as well.
Although, this isn't essential and pass locally when I remove that
implementation.
Navin Surtani
Intern Infinispan
Intern JBoss Cache Searchable
_______________________________________________
infinispan-dev mailing list
infinispan-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/infinispan-dev
--
Cheers,
Vinoth
10:46 a.m.
I am currently using Hibernate Search 3.1.1 GA
Well there's your issue. There was a change between 3.1.0 and 3.1.1.
So that's why we've switched the Infinispan dependency back to 3.1.0.
A fix has been made in HS trunk, and that works fine. On the
Infinispan side, at least we're just waiting on the next release of
Hibernate Search so we can update our dependencies.
On Thu, Nov 19, 2009 at 5:28 PM, Emmanuel Bernard <emmanuel(a)hibernate.org
> wrote:
I remember we had that bug, it might be an issue with the version of
HSearch used, which one are you using?
Yeah after you mentioned that yesterday while we were chatting I
remember this issue. Thanks!
11:15 a.m.
I am currently using Hibernate Search 3.1.1 GA
Well there's your issue. There was a change between 3.1.0 and 3.1.1. So
that's why we've switched the Infinispan dependency back to 3.1.0.
A fix has been made in HS trunk, and that works fine. On the Infinispan
side, at least we're just waiting on the next release of Hibernate Search so
we can update our dependencies.
Cool... Thanks for bringing this to our notice. Now the issue is solved, I
can search through the elements using CacheQuery.getBasicQuery()
One last thing,
Since I am a novice to this Hibernate & Hibernate Search,
Is there any reference documentation to build my knowledge for
QueryingInfinispan apart from that wiki page.
Or
Where should I start my learning to implement querying feature using
Infinispan with the help of technical preview provided in that wiki page.
Any pointers please.
Thanks,
Vinoth
11:30 a.m.
On 20 Nov 2009, at 10:15, Vinoth wrote:
> I am currently using Hibernate Search 3.1.1 GA
Well there's your issue. There was a change between 3.1.0 and 3.1.1.
So that's why we've switched the Infinispan dependency back to 3.1.0.
A fix has been made in HS trunk, and that works fine. On the
Infinispan side, at least we're just waiting on the next release of
Hibernate Search so we can update our dependencies.
Cool... Thanks for bringing this to our notice. Now the issue is
solved, I can search through the elements using
CacheQuery.getBasicQuery()
One last thing,
Since I am a novice to this Hibernate & Hibernate Search,
Is there any reference documentation to build my knowledge for
QueryingInfinispan apart from that wiki page.
In a word - no :-).
However, if you want to get more experience with learning how to query
this stuff, I'd say have a look at the Lucene documentation and learn
how to use those queries well. I say this because at the end, all you
need to do is create a Lucene query and use that to create a
CacheQuery instance. The complexity here is creating the Lucene query.
The better you know Lucene, the better you can query the Cache :-).
Or
Where should I start my learning to implement querying feature using
Infinispan with the help of technical preview provided in that wiki
page.
Again, I think the easy thing here is to learn how to use Lucene
queries well. Then you know what type of object you have in your Cache
and will know how to get what you're looking for quite efficiently.
Any pointers please.
Reckon that helps?
Thanks,
Vinoth
Navin Surtani
Intern Infinispan
Intern JBoss Cache Searchable
11:59 a.m.
One last thing,
Since I am a novice to this Hibernate & Hibernate Search,
Is there any reference documentation to build my knowledge for
QueryingInfinispan apart from that wiki page.
In a word - no :-).
However, if you want to get more experience with learning how to query this
stuff, I'd say have a look at the Lucene documentation and learn how to use
those queries well. I say this because at the end, all you need to do is
create a Lucene query and use that to create a CacheQuery instance. The
complexity here is creating the Lucene query. The better you know Lucene,
the better you can query the Cache :-).
Or
Where should I start my learning to implement querying feature using
Infinispan with the help of technical preview provided in that wiki page.
Again, I think the easy thing here is to learn how to use Lucene queries
well. Then you know what type of object you have in your Cache and will know
how to get what you're looking for quite efficiently.
Yes you are right, even I have started my learning on how to construct
lucene queries. I understood the importance of those query constructs in
Search Implementation
Thanks a ton for your kind help :-)
Thanks,
Vinoth
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8 comments
3 participants
participants (3)
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Emmanuel Bernard -
Navin Surtani -
Vinoth