Examples with GraphDatabaseService org.neo4j.graphdb.GraphDatabaseService used on opensource projects

Example 11 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class DatabaseImporterTest method provideStoreDirectory.

private File provideStoreDirectory() {
    File storeDir = testDir.graphDbDir();
    GraphDatabaseService db = null;
    try {
        db = new TestGraphDatabaseFactory().newEmbeddedDatabase(storeDir);
        try (Transaction transaction = db.beginTx()) {
            db.createNode();
            transaction.success();
        }
    } finally {
        if (db != null) {
            db.shutdown();
        }
    }
    return storeDir;
}

Example 12 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class GraphDatabaseServiceExecuteTest method shouldExecuteCypher.

@Test
public void shouldExecuteCypher() throws Exception {
    // given
    GraphDatabaseService graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
    final long before, after;
    try (Transaction tx = graphDb.beginTx()) {
        before = Iterables.count(graphDb.getAllNodes());
        tx.success();
    }
    // when
    graphDb.execute("CREATE (n:Foo{bar:\"baz\"})");
    // then
    try (Transaction tx = graphDb.beginTx()) {
        after = Iterables.count(graphDb.getAllNodes());
        tx.success();
    }
    assertEquals(before + 1, after);
}

Example 13 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class GraphDatabaseServiceExecuteTest method shouldBeAbleToUseExternalGeometryAsParameterToQuery.

@Test
public void shouldBeAbleToUseExternalGeometryAsParameterToQuery() throws Exception {
    // given a point created from public interface
    GraphDatabaseService graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
    Geometry geometry = makeFakePointAsGeometry(144.317718, -37.031738, makeWGS84());
    // when passing as params to a distance function
    Result result = graphDb.execute("RETURN distance(point({longitude: 144.317718, latitude: -37.031738}),{previous}) AS dist", map("previous", geometry));
    // then
    Double dist = (Double) result.next().get("dist");
    assertThat(dist, equalTo(0.0));
}

Example 14 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class GraphDatabaseServiceExecuteTest method shouldNotReturnInternalPointWhenInMap.

@SuppressWarnings("unchecked")
@Test
public void shouldNotReturnInternalPointWhenInMap() throws Exception {
    // given
    GraphDatabaseService graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
    // when
    Result execute = graphDb.execute("RETURN {p: point({longitude: 144.317718, latitude: -37.031738})} AS m");
    // then
    Map<String, Object> points = (Map<String, Object>) execute.next().get("m");
    assertThat(points.get("p"), Matchers.instanceOf(Point.class));
}

Example 15 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class GraphDatabaseServiceExecuteTest method shouldBeAbleToUseResultsOfPointGeometryProcedureAsInputToDistanceFunction.

@Test
public void shouldBeAbleToUseResultsOfPointGeometryProcedureAsInputToDistanceFunction() throws Exception {
    // given procedure that produces a point
    GraphDatabaseService graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
    Procedures procedures = ((GraphDatabaseAPI) graphDb).getDependencyResolver().resolveDependency(Procedures.class);
    procedures.registerProcedure(PointProcs.class);
    // when calling procedure that produces a point
    Result result = graphDb.execute("CALL spatial.pointGeometry(144.317718, -37.031738) YIELD geometry " + "RETURN distance(point({longitude: 144.317718, latitude: -37.031738}), geometry) AS dist");
    // then
    Double dist = (Double) result.next().get("dist");
    assertThat(dist, equalTo(0.0));
}