Examples of DomainEventStream

org.axonframework.domain.DomainEventStream
The DomainEventStream represents a stream of historical domain events. The order of events in this stream must represent the actual chronological order in which the events happened. A DomainEventStream may provide access to all events (from the first to the most recent) or any subset of these. @author Allard Buijze @since 0.1

Examples of org.axonframework.domain.DomainEventStream

                                                                   "Payload " + t + " for " + id1
                                                                           + " which is just to make it longer"));
            }
            cassandraEventStore.appendEvents("test", new SimpleDomainEventStream(messages));


            DomainEventStream eventStream = cassandraEventStore.readEvents("test", id1);
            while (eventStream.hasNext()) {
                DomainEventMessage<String> eventMessage = eventStream.next();
                assertNotNull(eventMessage);
                assertEquals(String.class, eventMessage.getPayloadType());
                assertTrue(eventMessage.getPayload().startsWith("Payload"));
                    event_count++;
            }

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Examples of org.axonframework.domain.DomainEventStream

        eventStore.appendEvents("UpcasterSample", new SimpleDomainEventStream(
                new GenericDomainEventMessage("todo2", 0, new ToDoItemCreatedEvent("todo2", "I also need to do this"))
        ));


        // now, we read the events from the "todo1" stream
        DomainEventStream eventStream = eventStore.readEvents("UpcasterSample", "todo1");
        while (eventStream.hasNext()) {
            // and print them, so that we can see what we ended up with
            System.out.println(eventStream.next().getPayload().toString());
        }
        IOUtils.closeQuietlyIfCloseable(eventStream);
    }

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Examples of org.axonframework.domain.DomainEventStream

        fixture.registerAnnotatedCommandHandler(new MyCommandHandler(fixture.getRepository(), fixture.getEventBus()));
        fixture.given(new MyEvent("AggregateId", 1), new MyEvent("AggregateId", 2))
               .when(new TestCommand("AggregateId"))
               .expectEvents(new MyEvent("AggregateId", 3));


        DomainEventStream events = fixture.getEventStore().readEvents("StandardAggregate", "AggregateId");
        for (int t=0;t<3;t++) {
            assertTrue(events.hasNext());
            DomainEventMessage next = events.next();
            assertEquals("AggregateId", next.getAggregateIdentifier());
            assertEquals(t, next.getSequenceNumber());
        }
    }

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Examples of org.axonframework.domain.DomainEventStream

                new GenericDomainEventMessage("todo2", 0, new ToDoItemCreatedEvent("todo2", "I also need to do this"))
        ));




        // now, we read the events from the "todo1" stream
        DomainEventStream upcastEvents = eventStore.readEvents("UpcasterSample", "todo1");
        while (upcastEvents.hasNext()) {
            // and print them, so that we can see what we ended up with
            System.out.println(upcastEvents.next().getPayload().toString());
        }
        IOUtils.closeQuietlyIfCloseable(upcastEvents);


        // to see the Upcaster doing the upcasting, see RunUpcaster, inner class ToDoItemUpcaster

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Examples of org.axonframework.domain.DomainEventStream

    public void testAggregateIdentifier_IdentifierAutomaticallyDeducted() {
        fixture.given(new MyEvent("AggregateId", 1), new MyEvent("AggregateId", 2))
               .when(new TestCommand("AggregateId"))
               .expectEvents(new MyEvent("AggregateId", 3));


        DomainEventStream events = fixture.getEventStore().readEvents("StandardAggregate", "AggregateId");
        for (int t = 0; t < 3; t++) {
            assertTrue(events.hasNext());
            DomainEventMessage next = events.next();
            assertEquals("AggregateId", next.getAggregateIdentifier());
            assertEquals(t, next.getSequenceNumber());
        }
    }

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Examples of org.axonframework.domain.DomainEventStream

    private void doVisitEvents(EventVisitor visitor, String whereClause, List<Object> parameters) {
        Iterator<? extends SerializedDomainEventData> batch = eventEntryStore.fetchFiltered(whereClause,
                                                                                            parameters,
                                                                                            batchSize
        );
        DomainEventStream eventStream = new IteratorDomainEventStream(null, batch, null, true);
        try {
            while (eventStream.hasNext()) {
                visitor.doWithEvent(eventStream.next());
            }
        } finally {
            IOUtils.closeQuietlyIfCloseable(eventStream);
        }
    }

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Examples of org.axonframework.domain.DomainEventStream

        testSubject.appendEvents("test", aggregate1.getUncommittedEvents());
        assertEquals((long) aggregate1.getUncommittedEventCount(), mongoTemplate.domainEventCollection().count());


        // we store some more events to make sure only correct events are retrieved
        testSubject.appendEvents("test", aggregate2.getUncommittedEvents());
        DomainEventStream events = testSubject.readEvents("test", aggregate1.getIdentifier());
        List<DomainEventMessage> actualEvents = new ArrayList<DomainEventMessage>();
        long expectedSequenceNumber = 0L;
        while (events.hasNext()) {
            DomainEventMessage event = events.next();
            // Tests AXON-169
            assertNotNull(event.getIdentifier());
            actualEvents.add(event);
            assertEquals("Events are read back in in the wrong order",
                         expectedSequenceNumber,

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Examples of org.axonframework.domain.DomainEventStream

        testSubject.appendSnapshotEvent("test", aggregate1.createSnapshotEvent());
        aggregate1.changeState();
        testSubject.appendEvents("test", aggregate1.getUncommittedEvents());
        aggregate1.commitEvents();


        DomainEventStream actualEventStream = testSubject.readEvents("test", aggregate1.getIdentifier());
        List<DomainEventMessage> domainEvents = new ArrayList<DomainEventMessage>();
        while (actualEventStream.hasNext()) {
            domainEvents.add(actualEventStream.next());
        }


        assertEquals(2, domainEvents.size());
    }

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Examples of org.axonframework.domain.DomainEventStream

        DefaultUnitOfWork.startAndGet();
        repository.load(aggregateIdentifier).doSomething();
        repository.load(aggregateIdentifier).doSomething();
        CurrentUnitOfWork.commit();


        DomainEventStream es = mockEventStore.readEvents("", aggregateIdentifier);
        assertTrue(es.hasNext());
        assertEquals((Object) 0L, es.next().getSequenceNumber());
        assertTrue(es.hasNext());
        assertEquals((Object) 1L, es.next().getSequenceNumber());
        assertTrue(es.hasNext());
        assertEquals((Object) 2L, es.next().getSequenceNumber());
        assertFalse(es.hasNext());
    }

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Examples of org.axonframework.domain.DomainEventStream

    }


    @Override
    public DomainEventStream readEvents(String type, Object identifier) {
        String rowKey = identifier.toString();
        DomainEventStream snapshotStream = read(rowKey, snapshotCFName, null);
        DomainEventMessage snapshot = null;
        if (snapshotStream.hasNext()) {
            snapshot = snapshotStream.next();
        }
        return read(rowKey, eventCFName, snapshot);
    }

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