Examples of org.axonframework.domain.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

                                                      new Object(),
                                                      Collections.singletonMap("key", (Object) "Value"))));
        entityManager.flush();
        entityManager.clear();


        DomainEventStream events = testSubject.readEvents("test", aggregate1.getIdentifier());
        List<DomainEventMessage> actualEvents = new ArrayList<DomainEventMessage>();
        while (events.hasNext()) {
            DomainEventMessage event = events.next();
            event.getPayload();
            event.getMetaData();
            actualEvents.add(event);
        }

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        }
        testSubject.appendEvents("test", new SimpleDomainEventStream(domainEvents));
        entityManager.flush();
        entityManager.clear();


        DomainEventStream events = testSubject.readEvents("test", aggregateIdentifier);
        long t = 0L;
        while (events.hasNext()) {
            DomainEventMessage event = events.next();
            assertEquals(t, event.getSequenceNumber());
            t++;
        }
        assertEquals(110L, t);
    }

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                serializer.serialize(stubDomainEvent.getMetaData(), byte[].class));
        entityManager.persist(entry);
        entityManager.flush();
        entityManager.clear();


        DomainEventStream stream = testSubject.readEvents("test", aggregateIdentifier);
        assertEquals(0L, stream.peek().getSequenceNumber());
    }

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                serializer.serialize(stubDomainEvent.getMetaData(), byte[].class));
        entityManager.persist(entry);
        entityManager.flush();
        entityManager.clear();


        DomainEventStream stream = testSubject.readEvents("test", aggregateIdentifier);
        assertEquals(0L, stream.peek().getSequenceNumber());
    }

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    }


    @Override
    public DomainEventStream decorateForRead(String aggregateType, Object aggregateIdentifier,
                                             DomainEventStream eventStream) {
        DomainEventStream events = eventStream;
        for (EventStreamDecorator decorator : eventStreamDecorators) {
            events = decorator.decorateForRead(aggregateType, aggregateIdentifier, events);
        }
        return events;
    }

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                                                                                      MetaData.emptyInstance()
        ));
        entityManager.flush();
        entityManager.clear();


        DomainEventStream events = testSubject.readEvents("test", aggregateIdentifier);
        long t = 30L;
        while (events.hasNext()) {
            DomainEventMessage event = events.next();
            assertEquals(t, event.getSequenceNumber());
            t++;
        }
        assertEquals(110L, t);
    }

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    }


    @Override
    public DomainEventStream decorateForAppend(String aggregateType, EventSourcedAggregateRoot aggregate,
                                               DomainEventStream eventStream) {
        DomainEventStream events = eventStream;
        for (int i = eventStreamDecorators.length - 1; i >= 0; i--) {
            events = eventStreamDecorators[i].decorateForAppend(aggregateType, aggregate, events);
        }
        return events;
    }

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        entityManager.clear();
        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()) {
            DomainEventMessage next = actualEventStream.next();
            domainEvents.add(next);
            assertEquals(aggregate1.getIdentifier(), next.getAggregateIdentifier());
        }


        assertEquals(2, domainEvents.size());

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                                                                                      MetaData.emptyInstance()));


        entityManager.flush();
        entityManager.clear();


        DomainEventStream actual = testSubject.readEvents("test", aggregateIdentifier, 2);
        for (int i = 2; i <= 4; i++) {
            assertTrue(actual.hasNext());
            assertEquals(i, actual.next().getSequenceNumber());
        }
        assertFalse(actual.hasNext());
    }

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                                                                                      MetaData.emptyInstance()));


        entityManager.flush();
        entityManager.clear();


        DomainEventStream actual = testSubject.readEvents("test", aggregateIdentifier, 2, 3);
        for (int i = 2; i <= 3; i++) {
            assertTrue(actual.hasNext());
            assertEquals(i, actual.next().getSequenceNumber());
        }
        assertFalse(actual.hasNext());
    }

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