Hi,

I have an Entity with a Composite Key (composite key made up of two Long variables).
Here is a snippet of the error that I get when I execute a search.

java.lang.NumberFormatException: For input string: "com.faculte.hibernateobjects.FaculteClassPK@72add8[User-id=1,Class-id=2]"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:447)
at java.lang.Integer.<init>(Integer.java:620)
at org.hibernate.search.bridge.builtin.IntegerBridge.stringToObject(IntegerBridge.java:14)
at org.hibernate.search.bridge.TwoWayString2FieldBridgeAdaptor.get(TwoWayString2FieldBridgeAdaptor.java:32)
at org.hibernate.search.engine.DocumentBuilder.getDocumentId(DocumentBuilder.java:626)
at org.hibernate.search.engine.DocumentExtractor.extract(DocumentExtractor.java:30)
at org.hibernate.search.engine.DocumentExtractor.extract(DocumentExtractor.java:40)
at org.hibernate.search.query.FullTextQueryImpl.list(FullTextQueryImpl.java:241)
at com.faculte.dao.SearchDAO.findClasses(SearchDAO.java:175)
at com.faculte.dao.SearchDAO.searchClasses(SearchDAO.java:359)


Here is the Model that I use -

@Indexed(index="indexes/faculteclass")
public class FaculteClass implements Serializable, IClassInfo {

private FaculteClassPK i_id;

private ClassType i_classType;

@Field(index=Index.TOKENIZED, store=Store.YES)
private String i_title;

@Field(index=Index.TOKENIZED, store=Store.YES)
private String i_description;

@DocumentId
private int i_noOfChapters;

private double i_price;
......

public class FaculteClassPK implements Serializable {

private Long i_userId;

private Long i_classId;
....


Any idea why this Number format error is being thrown?

Looking at the exception, I believe that, value being passed for parsing to Integer.parseInt is com.faculte.hibernateobjects.FaculteClassPK@72add8[User-id=1,Class-id=2]
thats all I can guess from information available in post.

Actually @DocumentId must point to the Entity id, not any random property

Hi,

Thanks for the earlier reply.
I think you hit the nail on the head with that "Actually @DocumentId must point to the Entity id, not any random property".

Now, the changes that I have done are as follows -
I have now made FaculteClassPK the DocumentID as required (because that is the actual Entity ID).

@DocumentId
@IndexedEmbedded
@FieldBridge(impl = FaculteClassPKBridge.class)
private FaculteClassPK i_id;

I have implemented a FaculteClassPKBridge as follows -
public class FaculteClassPKBridge implements StringBridge {

public String objectToString(Object object) {
String rawString = ( (FaculteClassPK) object ).toString();
return rawString;
}
}

The FaculteClassPK has a toString Method that is -
public String toString() {
return new ToStringBuilder(this).append("User-id", i_userId).append(
"Class-id", i_classId).toString();
}

With this, I am now getting the following error -

org.hibernate.search.SearchException: Bridge for document id does not implement IdFieldBridge: i_id
at org.hibernate.search.engine.DocumentBuilder.initializeMember(DocumentBuilder.java:192)
at org.hibernate.search.engine.DocumentBuilder.initializeMembers(DocumentBuilder.java:167)



Anything that I'm missing out here?

Regards,
-rahul

Figured that one. Need to implement a TwoWayStringBridge.

Am doing that now, but the stringToObject(String arg0) is throwing a null pointer exception.
Basically, the arg0 is null so thats an issue, but why is it null is something that I am unable to figure out.

Any inputs?

um strange, if you find some more info by debuging let me know. null should never be returned.
Check that the id field is properly saved in the Lucene index (using luke for example)

Hi,

Fixed the problem. As suspected it was an indexing issue.
Here is the observation
Lets say there is a field named i_Id which needs to be indexed.
I am using hbms as of now and have mapped this i_Id to the mapping name 'id'.
This seems to create a problem while indexing incase the i_Id is also my @DocumentId.

I changed the field name from i_Id to 'id' and things worked perfectly.

Would be eager to know any more details on why that occurs.

Thanks
-rahul

I don't understand :)