Add Neo4j examples after community migration

[vga91]

Add Neo4j examples after community migration

• Neo4jEmbeddingStore configuration examples
• Neo4jText2CypherRetriever example
• Spring Boot example

[dliubarskyi]

@vga91 thank you! But it does not compile because Neo4jGraph.builder() and Neo4jText2CypherRetriever.build() are not public.

[vga91]

Yeah sorry I forgot to draft it, the public modifiers have been changed but not yet released.
I will put the pr in ready to review when possible.

[vga91]

@dliubarskyi currently it should compile correctly, thank you.

[vga91]

@dliubarskyi we would like to add some adoc tagged regions like above,
so that we can add e.g. include::https://github.com/langchain4j/langchain4j-examples/raw/main/neo4j-example/src/main/java/Neo4jEmbeddingStoreExample.java[tags=add-single-embedding] in the Neo4j documentation here.

Would it be possible to add them in here?

        // tag::add-single-embedding[]
        TextSegment segment1 = TextSegment.from("I like football.");
        Embedding embedding1 = embeddingModel.embed(segment1).content();
        minimalEmbedding.add(embedding1, segment1);
        // end::add-single-embedding[]

[dliubarskyi]

@vga91

Would it be possible to add them in here?

Probably yes, but I am not sure how exactly to do that, could you please explain?

[dliubarskyi]

@vga91 thank you!

[vga91]

@vga91

Would it be possible to add them in here?

Probably yes, but I am not sure how exactly to do that, could you please explain?

@dliubarskyi Yes sure,
the idea is to add the tags like these ones I created in my fork,

so that in the neo4j documentations' adoc repo here, if we write

[source,java]
----
include::https://raw.githubusercontent.com/langchain4j/langchain4j-examples/refs/heads/test-tags/neo4j-example/src/main/java/Neo4jEmbeddingStoreExample.java[tags=test]
----

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