Hi, I'm struggling with a design problem

Just for simplicity, lets assume I've got 3 entities mapped and all should be returned as a result (they don't meet parent/child relation).

I have to make it possible to query associated fields. Initially I planned to create one index that joins all entities but the problem is that i want to get the closest match. That mean if my query uses attributes from A and B entities both objects should be in the outcome. If it uses fields only from A entity, *only* A is supposed to be returned

Does hibernate search makes it possible?

The only way I can think about it is like having one index per class without associated fields, ignoring other fields during quering and making intersection of all sets on my own if all searchable fields are required.

CAn you make your question more concrete for example by providing some class examples. From what I understood it might be possible.

@Indexed
public class Tasks {
@DocumentId
private Long id;

@Field
private String title;

@IndexedEmbedded
private List<Attributes> attributes;


@IndexedEmbedded
private List<Contents> contents;
....
}


@Indexed
public class Attributes {
@DocumentId
private Long id;

@Field
private String name;

@Field
private String value;

@IndexedEmbedded
private Tasks task;
....
}


@Indexed
public class Contents {
@DocumentId
private Long id;

@Field
private String content;

@IndexedEmbedded
private Tasks task;
....
}

Although it looks as if Tasks where at the top of hierarchy, it's mandatory in my project to query all 3 objects, thus all must be indexed. Besides that, query like that:

+title:java +content:java
should return appropriate Tasks and Contents objects

but

+contents:java
is supposed to return only Contents objects (which is not in my case since due to @IndexedEmbedded query will hit associated Tasks as well).

Although i could restrict my search like that: fullTextSession.createFullTextQuery( luceneQuery, Contents.class ) ,
i need to allow searching all indexed objects.
Another workaround that occuried to me might be checking where query's fields belong to and then restricting to that classes in
'createFullTextQuery' but that sounds quite rough to me.

AFAIK +title:java +content:java should return nothing since you have no object having both fields title and content.

but

"title:java content:java" should return all tasks having java in the title and all content objects having java in the content field.

"contents:java" will return all tasks having a content whose content field contains java.

Thanks for answer and sorry for my delay.

That's everything correct except one thing:

If user query for

+title:java +content:java

I should return both entities (contents and tasks) that meet the query. Previously we thought about making use of IndexEmbedded. I've prototyped it, however since we must provide functionality to query for all indexed fields at once it involved making one big denormalized table (that has some performance issue and renders hibernate search useless).

I'm wondering if there is any feature that i don't know that would ease us the pain making two separate queries "+title:java" and "+content:java" and then making intersaction of the results (Probably still writing some more sophisticated QueryParser from scratch)