Package com.tinkerpop.gremlin.structure

Examples of com.tinkerpop.gremlin.structure.Edge

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                        Optional.ofNullable(keyValues) : ElementHelper.remove(T.id, keysVals);

                if (id.isPresent()) {
                    final Traversal<Edge, Edge> traversal = baseGraph.E().has(edgeIdKey, id.get());
                    if (traversal.hasNext()) {
                        final Edge e = traversal.next();
                        // let the user decide how to handle conflict
                        kvs.ifPresent(keyvals -> existingEdgeStrategy.accept(e, keyvals));
                        currentEdgeCached = e;
                    } else
                        currentEdgeCached = kvs.isPresent() ? ov.addEdge(label, iv, kvs.get()) : ov.addEdge(label, iv);
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        this.vertexProcessor = vertexProcessor;
        this.seedSupplier = seedGenerator;
    }

    protected final Edge addEdge(final Vertex out, final Vertex in) {
        final Edge e = out.addEdge(label, in);
        edgeProcessor.ifPresent(c -> c.accept(e));
        return e;
    }
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    }

    @Override
    public Edge e(final Object id) {
        if (null == id) throw Graph.Exceptions.elementNotFound(Edge.class, null);
        final Edge edge = this.edges.get(id);
        if (null == edge)
            throw Graph.Exceptions.elementNotFound(Edge.class, id);
        else
            return edge;
    }
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        ElementHelper.validateLabel(label);
        ElementHelper.legalPropertyKeyValueArray(keyValues);

        Object idValue = ElementHelper.getIdValue(keyValues).orElse(null);

        final Edge edge;
        if (null != idValue) {
            if (graph.edges.containsKey(idValue))
                throw Graph.Exceptions.edgeWithIdAlreadyExists(idValue);
        } else {
            idValue = TinkerHelper.getNextId(graph);
        }

        edge = new TinkerEdge(idValue, outVertex, label, inVertex, graph);
        ElementHelper.attachProperties(edge, keyValues);
        graph.edges.put(edge.id(), edge);
        TinkerHelper.addOutEdge(outVertex, label, edge);
        TinkerHelper.addInEdge(inVertex, label, edge);
        return edge;

    }
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    @Test
    @LoadGraphWith(MODERN)
    public void g_v1_outE_asXhereX_inV_hasXname_vadasX_backXhereX() {
        final Traversal<Vertex, Edge> traversal = get_g_v1_outE_asXhereX_inV_hasXname_vadasX_backXhereX(convertToVertexId("marko"));
        printTraversalForm(traversal);
        final Edge edge = traversal.next();
        assertEquals("knows", edge.label());
        assertEquals(convertToVertexId("vadas"), edge.inV().id().next());
        assertEquals(convertToVertexId("marko"), edge.outV().id().next());
        assertEquals(0.5d, edge.<Double>value("weight"), 0.0001d);
        assertFalse(traversal.hasNext());
    }
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                get_g_v1_outEXknowsX_asXhereX_hasXweight_1X_asXfakeX_inV_hasXname_joshX_backXhereX(convertToVertexId("marko")));
        traversals.forEach(traversal -> {
            printTraversalForm(traversal);
            assertTrue(traversal.hasNext());
            assertTrue(traversal.hasNext());
            final Edge edge = traversal.next();
            assertEquals("knows", edge.label());
            assertEquals(1.0d, edge.<Double>value("weight"), 0.00001d);
            assertFalse(traversal.hasNext());
            assertFalse(traversal.hasNext());
        });
    }
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            final Object edgeId = getTypedValueFromJsonNode(json.get(GraphSONTokens._ID));
            final JsonNode nodeLabel = json.get(GraphSONTokens._LABEL);
            final String label = nodeLabel == null ? EMPTY_STRING : nodeLabel.textValue();

            final Edge e = out.addEdge(label, in, T.id, edgeId);
            for (Map.Entry<String, Object> entry : props.entrySet()) {
                e.property(entry.getKey(), entry.getValue());
            }

            return e;
        }
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                        final Map<String, Object> edgeData = parser.readValueAs(mapTypeReference);
                        readEdgeData(edgeData, detachedEdge -> {
                            final Vertex vOut = graph.v(detachedEdge.iterators().vertexIterator(Direction.OUT).next().id());
                            final Vertex vIn = graph.v(detachedEdge.iterators().vertexIterator(Direction.IN).next().id());
                            // batchgraph checks for edge id support and uses it if possible.
                            final Edge e = vOut.addEdge(edgeData.get(GraphSONTokens.LABEL).toString(), vIn, T.id, detachedEdge.id());
                            detachedEdge.iterators().propertyIterator().forEachRemaining(p -> e.<Object>property(p.key(), p.value()));
                            detachedEdge.iterators().hiddenPropertyIterator().forEachRemaining(p -> e.<Object>property(Graph.Key.hide(p.key()), p.value()));
                            return e;
                        });
                    }
                } else
                    throw new IllegalStateException(String.format("Unexpected token in GraphSON - %s", fieldName));
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    }

    @Override
    public UnaryOperator<Function<Object, Edge>> getGrapheStrategy(final Strategy.Context<StrategyWrappedGraph> ctx) {
        return (f) -> (id) -> {
            final Edge e = f.apply(id);

            if (!this.testEdge(e)) {
                throw Graph.Exceptions.elementNotFound(Edge.class, id);
            }
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        assertEquals(v, result.get(Element.class));
    }

    @Test
    public void shouldGetEdge() {
        final Edge e = g.e(11);
        final ResponseMessage msg = ResponseMessage.build(id).result(e).create();
        final Result result = new Result(msg);

        assertEquals(e, result.getEdge());
        assertEquals(e, result.get(Edge.class));
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  • com.tinkerpop.gremlin.driver.ResultTest
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  • com.tinkerpop.gremlin.structure.io.graphson.GraphSONReader
  • com.tinkerpop.gremlin.structure.io.graphson.LegacyGraphSONReader$GraphSONUtility
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