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Posted to users@jackrabbit.apache.org by Anirban Majumdar <an...@altair.com> on 2010/01/18 15:21:47 UTC

ObjectContentManager Persisting Child Nodes

Hello,

 

After searching high and low for a solution to my problem, I've finally
thought of writing in. Even though the subject might suggest that this
problem must've been faced by some other people too, but I couldn't find
any similar issues discussed. Probably I'm just making some simple
mistake :/

 

Anyways, the problem I face is like this -

I have a node structure like:

------------------------------------------------------------------------
----------------

[av:ContentType] > nt:base, mix:referenceable, mix:lockable

- av:name (string)

mandatory

- av:user (string)

- av:version (double)

+ av:metadata (av:ContentMetadataType)

= av:ContentMetadataType

multiple

 

[av:ContentMetadataType]

- av:metadataName (string)

- av:metadataId (string)

mandatory

- av:value

------------------------------------------------------------------------
----------------

 

Using annotated Java POJO classes I'm trying to persist the data for a
Content type. The annotations I've added to my Content and
ContentMetadata POJO classes are as follows:

------------------------

Content.java

------------------------

    @Field (uuid = true)

    private String id;

    

    @Field (jcrName = "av:name")

    private String name;

    

    @Field (jcrName = "av:user")

    private String user;

    

    @Field (jcrName = "av:version")

    private double version;

    

    @Collection (jcrElementName = "av:metadata", jcrName = "av:name", 

                    jcrType = "av:ContentMetadataType")

    private List<ContentMetadata> assocMetatadata;

    

    @Field (path = true)

    private String path = "/av:content"; 

 

------------------------

ContentMetadata.java

------------------------

    @Field (jcrName = "av:metadataId")

    String metadataId;

    

    @Field (jcrName = "av:metadataName")

    String metadataName;

    

    @Field (jcrName = "av:value")

    String value;

    

    @Field (path = true)

    String path = "/av:content/av:metadata";

------------------------------------------------------------------------
-----------------------------------------------------------------------

 

Now, when I try to persist an instance of Content.java using OCM, I keep
encountering the following exception:

----------------------------

javax.jcr.nodetype.ConstraintViolationException: no matching child node
definition found for {http://av.com/vault}metadata

----------------------------

 

Any assistance to solve this problem is much appreciated.

 

Thanks,

--------

anirban

RE: ObjectContentManager Persisting Child Nodes

Posted by Anirban Majumdar <an...@altair.com>.
So I was able to resolve this issue, and am writing down the solution if
some hapless soul happens to encounter something similar in the future.

The trick is - the child node type should extend "nt:unstructured". Hope
it helps someone out there.

--------
anirban

-----Original Message-----
From: Anirban Majumdar [mailto:anirban.majumdar@altair.com] 
Sent: Monday, January 18, 2010 7:52 PM
To: users@jackrabbit.apache.org
Subject: ObjectContentManager Persisting Child Nodes

Hello,

 

After searching high and low for a solution to my problem, I've finally
thought of writing in. Even though the subject might suggest that this
problem must've been faced by some other people too, but I couldn't find
any similar issues discussed. Probably I'm just making some simple
mistake :/

 

Anyways, the problem I face is like this -

I have a node structure like:

------------------------------------------------------------------------
----------------

[av:ContentType] > nt:base, mix:referenceable, mix:lockable

- av:name (string)

mandatory

- av:user (string)

- av:version (double)

+ av:metadata (av:ContentMetadataType)

= av:ContentMetadataType

multiple

 

[av:ContentMetadataType]

- av:metadataName (string)

- av:metadataId (string)

mandatory

- av:value

------------------------------------------------------------------------
----------------

 

Using annotated Java POJO classes I'm trying to persist the data for a
Content type. The annotations I've added to my Content and
ContentMetadata POJO classes are as follows:

------------------------

Content.java

------------------------

    @Field (uuid = true)

    private String id;

    

    @Field (jcrName = "av:name")

    private String name;

    

    @Field (jcrName = "av:user")

    private String user;

    

    @Field (jcrName = "av:version")

    private double version;

    

    @Collection (jcrElementName = "av:metadata", jcrName = "av:name", 

                    jcrType = "av:ContentMetadataType")

    private List<ContentMetadata> assocMetatadata;

    

    @Field (path = true)

    private String path = "/av:content"; 

 

------------------------

ContentMetadata.java

------------------------

    @Field (jcrName = "av:metadataId")

    String metadataId;

    

    @Field (jcrName = "av:metadataName")

    String metadataName;

    

    @Field (jcrName = "av:value")

    String value;

    

    @Field (path = true)

    String path = "/av:content/av:metadata";

------------------------------------------------------------------------
-----------------------------------------------------------------------

 

Now, when I try to persist an instance of Content.java using OCM, I keep
encountering the following exception:

----------------------------

javax.jcr.nodetype.ConstraintViolationException: no matching child node
definition found for {http://av.com/vault}metadata

----------------------------

 

Any assistance to solve this problem is much appreciated.

 

Thanks,

--------

anirban