Package com.tinkerpop.gremlin.structure

Examples of com.tinkerpop.gremlin.structure.Edge$Exceptions

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    @FeatureRequirement(featureClass = Graph.Features.EdgePropertyFeatures.class, feature = Graph.Features.EdgePropertyFeatures.FEATURE_DOUBLE_VALUES)
    public void shouldNotEvaluateToEqualDifferentId() {
        final Object joshCreatedLopEdgeId = convertToEdgeId("josh", "created", "lop");
        final Vertex vOut = g.v(convertToVertexId("josh"));
        final Vertex vIn = g.v(convertToVertexId("lop"));
        final Edge e = vOut.addEdge("created", vIn, "weight", 0.4d);
        assertFalse(DetachedEdge.detach(g.e(joshCreatedLopEdgeId)).equals(DetachedEdge.detach(e)));
    }
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    @Test(expected = UnsupportedOperationException.class)
    @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
    public void shouldNotAllowSetProperty() {
        final Vertex v = g.addVertex();
        final Edge e = v.addEdge("test", v);
        final DetachedEdge detachedEdge = DetachedEdge.detach(e);
        detachedEdge.property("test", "test");
    }
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    @Test(expected = UnsupportedOperationException.class)
    @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
    public void shouldNotAllowRemove() {
        final Vertex v = g.addVertex();
        final Edge e = v.addEdge("test", v);
        final DetachedEdge detachedEdge = DetachedEdge.detach(e);
        detachedEdge.remove();
    }
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        @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
        @FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_USER_SUPPLIED_IDS)
        public void shouldAllowDirectSettingOfIdField() {
            final IdGraphStrategy strategy = (IdGraphStrategy) ((StrategyWrappedGraph) g).getStrategy().getGraphStrategy().get();
            final Vertex v = g.addVertex(T.id, "test", "something", "else");
            final Edge e = v.addEdge("self", v, T.id, "edge-id", "try", "this", strategy.getIdKey(), "should be ok to set this as supportsEdgeId=false");
            tryCommit(g, c -> {
                assertNotNull(e);
                assertEquals("edge-id", e.id());
                assertEquals("this", e.property("try").value());
                assertEquals("should be ok to set this as supportsEdgeId=false", e.property(strategy.getIdKey()).value());

                final Edge found = g.e("edge-id");
                assertEquals("edge-id", found.id());
                assertEquals("this", found.property("try").value());
                assertEquals("should be ok to set this as supportsEdgeId=false", found.property(strategy.getIdKey()).value());
            });

            try {
                g.addVertex(T.id, "test", "something", "else", strategy.getIdKey(), "this should toss and exception as supportsVertexId=true");
                fail("An exception should be tossed here because supportsVertexId=true");
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    @Test(expected = UnsupportedOperationException.class)
    @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
    public void shouldNotTraverse() {
        final Vertex v = g.addVertex();
        final Edge e = v.addEdge("test", v);
        final DetachedEdge detachedEdge = DetachedEdge.detach(e);
        detachedEdge.start();
    }
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    @Test
    @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
    public void shouldNotConstructNewWithSomethingAlreadyDetached() {
        final Vertex v = g.addVertex();
        final Edge e = v.addEdge("test", v, "xxx", "yyy");
        final DetachedProperty dp = DetachedProperty.detach(e.property("xxx"));
        assertSame(dp, DetachedProperty.detach(dp));
    }
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    @LoadGraphWith(LoadGraphWith.GraphData.MODERN)
    @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
    @FeatureRequirement(featureClass = Graph.Features.EdgePropertyFeatures.class, feature = Graph.Features.EdgePropertyFeatures.FEATURE_DOUBLE_VALUES)
    public void shouldNotBeEqualPropertiesAsThereIsDifferentKey() {
        final Object joshCreatedLopEdgeId = convertToEdgeId("josh", "created", "lop");
        final Edge e = g.v(convertToVertexId("josh")).addEdge("created", g.v(convertToVertexId("lop")), Graph.Key.hide("weight"), 0.4d);
        assertFalse(DetachedProperty.detach(e.property(Graph.Key.hide("weight"))).equals(DetachedProperty.detach(g.e(joshCreatedLopEdgeId).property("weight"))));
    }
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        @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
        public void shouldReturnWrappedEdgeToString() {
            final StrategyWrappedGraph swg = new StrategyWrappedGraph(g);
            final Vertex v1 = swg.addVertex(T.label, "Person");
            final Vertex v2 = swg.addVertex(T.label, "Person");
            final Edge e1 = v1.addEdge("friend", v2);
            final Edge originalEdge = ((StrategyWrappedEdge) e1).getBaseEdge();
            swg.getStrategy().setGraphStrategy(strategy);
            assertEquals(StringFactory.graphStrategyEdgeString(strategy, originalEdge), e1.toString());
        }
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        @FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
        public void shouldReturnWrappedPropertyToString() {
            final StrategyWrappedGraph swg = new StrategyWrappedGraph(g);
            final Vertex v1 = swg.addVertex(T.label, "Person");
            final Vertex v2 = swg.addVertex(T.label, "Person");
            final Edge e1 = v1.addEdge("friend", v2, "weight", "fifty");
            final Property weight = e1.property("weight");
            final Edge originalEdge = ((StrategyWrappedEdge) e1).getBaseEdge();
            final Property originalProperty = originalEdge.property("weight");
            swg.getStrategy().setGraphStrategy(strategy);
            assertEquals(StringFactory.graphStrategyPropertyString(strategy, originalProperty), weight.toString());
        }
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            // but doesn't actually blow it away
            swg.getStrategy().setGraphStrategy(new GraphStrategy() {
                @Override
                public UnaryOperator<Supplier<Void>> getRemoveEdgeStrategy(final Strategy.Context<StrategyWrappedEdge> ctx) {
                    return (t) -> () -> {
                        final Edge e = ctx.getCurrent().getBaseEdge();
                        e.properties().forEachRemaining(Property::remove);
                        e.property("deleted", true);
                        return null;
                    };
                }
            });

            final Vertex v = g.addVertex("name", "pieter");
            final Edge e = v.addEdge("likes", g.addVertex("feature", "Strategy"), "this", "something");

            assertEquals(1, e.properties().count().next().intValue());
            assertFalse(e.property("deleted").isPresent());

            swg.e(e.id()).remove();

            final Edge removed = g.e(e.id());
            assertNotNull(removed);
            assertEquals(1, removed.properties().count().next().intValue());
            assertTrue(removed.property("deleted").isPresent());
        }
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