example of Java Rest API wrapper

[Alex Frieden]

Hi all, trying to get a good example of using the Java REST API wrapper to just connect to the database

http://m2.neo4j.org/content/repositories/releases/org/neo4j/neo4j-rest-graphdb/1.8.1/

Using my database at http://localhost:7474/

Thanks!

[Rahul Deshmukh]

Hello Alex,

Even i am looking for the example.Please let me know if you find any answer and i will also search and let u know if i find something.

Thanks

--
You received this message because you are subscribed to the Google Groups "Neo4j" group.
To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+un...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
 
 

--
With regards,

Rahul Deshmukh

017691387831

[Michael Hunger]

it is on m2.neo4j.org

depedency:

<dependency>

  <groupId>service.local.repositories.releases.content.org.neo4j</groupId>

  <artifactId>neo4j-rest-graphdb</artifactId>

  <version>1.9.M04</version>

</dependency>

see also here: http://m2.neo4j.org/index.html#nexus-search;quick~rest-graphdb

RestAPI rest = new RestAPIFacade("http://localhost:7474/db/data");

Result<Map<String,Object>> result = rest.query("start n=node({id}) return n",map("id",0));

for (Map<String,Object> row : result) {

   Node n=row.get("n");

   // do something

}

HTH

Michael

[Alex Frieden]

This did not work (Result not known type and there was a problem with the map method)

[Michael Hunger]

Use this:

import org.neo4j.rest.graphdb.RestAPI;

import org.neo4j.rest.graphdb.RestAPIFacade;

import org.neo4j.rest.graphdb.query.RestCypherQueryEngine;

import org.neo4j.rest.graphdb.util.QueryResult;

import java.util.Map;

import static org.neo4j.helpers.collection.MapUtil.map;

public class RestApiTest {

    public static void main(String[] args) {

        final RestAPI api = new RestAPIFacade("http://localhost:7474/db/data");

        final RestCypherQueryEngine engine = new RestCypherQueryEngine(api);

        final QueryResult<Map<String,Object>> result = engine.query("start n=node({id}) return n.name, id(n) as id", map("id", 0));

        for (Map<String, Object> row : result) {

            long id=((Number)row.get("id")).longValue();

            String name= (String) row.get("n.name");

[Alex Frieden]

Awesome!  Thank you so much.  Running into another issue now:  I am running an augmentation of this

import org.neo4j.rest.graphdb.RestAPI;

import org.neo4j.rest.graphdb.RestAPIFacade;

import org.neo4j.rest.graphdb.query.RestCypherQueryEngine;

import org.neo4j.rest.graphdb.util.QueryResult;

import java.util.Map;

import static org.neo4j.helpers.collection.MapUtil.map;

public class TestRun {

    public static void main(String[] args) {

        System.out.println("starting test");

        final RestAPI api = new RestAPIFacade("http://localhost:7474/db/data");

        System.out.println("API created");

        final RestCypherQueryEngine engine = new RestCypherQueryEngine(api);

        System.out.println("engine created");

        final QueryResult<Map<String,Object>> result = engine.query("start n=node({id}) return n, id(n) as id;", map("id", 0));

        System.out.println("query created");

        for (Map<String, Object> row : result) {

            long id=((Number)row.get("id")).longValue();

            System.out.println("id is " + id);

        }

    }

}

And it seems to just be stalling at the construction of the QueryResult.  Any idea why it would just get stuck there?  No error or exception.  

[Alessandro Negro]

Hi Alex,

we have just released a simple java client for Neo4J.

Have a look at it since there are some usage examples.

Here the link: http://www.reco4j.org/download.jsp

Reco4J is a recommender engine but the client is a general purpose java client for Neo4J.

Let me know,

Alessandro