Is it possible to get the matching document and all its ancestors in one query?

To illustrate my requirements consider the following directory structure:

C:\Dev

C:\Dev\Projects

C:\Dev\Projects\Test Project

C:\Dev\Projects\Test Project\Test.cs

C:\Dev\Projects\Foo

C:\Dev\Projects\Foo\foo.cs (containing the word test)

The basic document will have id, type, name and content fields, where开发者_Python百科 type will be file or folder and name will be ether file name or folder name.

When searching for "test" I should get:

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Test Project (result)

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Test Project (ancestor of a result)

C:\Dev\Projects\Test Project\Test.cs (result)

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Foo (ancestor of a result)

C:\Dev\Projects\Foo\foo.cs (result)

Even better if it possible to avoid duplications:

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Test Project (result)

C:\Dev\Projects\Test Project\Test.cs (result)

C:\Dev\Projects\Foo (ancestor of a result)

C:\Dev\Projects\Foo\foo.cs (result)

When searching for "project" I should get:

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Test Project (result)

When searching for "foo" I should get:

C:\Dev (ancestor of a result)

C:\Dev\Projects (ancestor of a result)

C:\Dev\Projects\Foo (result) C:\Dev\Projects\Foo\foo.cs (result)

Thanks for any help

If you generate your index once or have a very small number of writes you could set up a solution in the indexing of the documents.

So for each document you would save another field called "path" and have it hold a tokenized list of all words from the sub elements of the path:

name: C:\Dev\Projects
path: C:, Dev, Projects, Test, Test Project, Test.cs, Foo, Foo.cs (use whatever tokenizer you want)

then index the field as INDEXED:true STORED:false and use it for searching for matches:

query: +path:"Foo"

Should return all the documents that have Foo as a child element. Keep in mind this solution is very costly for writes and may be impractical for a very large tree structure where you have many thousands of leafs.