我用角材料将桌子分类为角7。因此，发生了什么事，我正在从@MessageEndpoint
@Log
public class MessageFromEvent {
private final EntityManagerFactory entityManagerFactory;
private final JpaTransactionManager transactionManager;
@Autowired
public MessageFromEvent(EntityManagerFactory entityManagerFactory,
JpaTransactionManager transactionManager) {
this.entityManagerFactory = entityManagerFactory;
this.transactionManager = transactionManager;
}
@Bean
@InboundChannelAdapter(channel = "selectEventChannel", poller = @Poller(fixedDelay = "10000"))
public MessageSource<?> selectEvent() {
log.info("STEP 1: Getting data form EventStore table");
return new JpaPollingChannelAdapter(selectEventExecutor());
}
@Bean
public JpaExecutor selectEventExecutor() {
JpaExecutor executor = new JpaExecutor(this.entityManagerFactory);
executor.setJpaQuery("select event from Event event where event.eventStatus = 0");
executor.setUsePayloadAsParameterSource(true);
executor.setEntityClass(Event.class);
return executor;
}
@Bean
@ServiceActivator(inputChannel = "selectEventChannel")
public MessageHandler updateEventStatus(JpaExecutor updateEventExecutor) {
log.info("STEP 2: Updating event status");
JpaOutboundGateway gateway = new JpaOutboundGateway(updateEventExecutor);
gateway.setGatewayType(OutboundGatewayType.UPDATING);
MatchAlwaysTransactionAttributeSource attributeSource = new MatchAlwaysTransactionAttributeSource();
attributeSource.setTransactionAttribute(new DefaultTransactionAttribute());
TransactionInterceptor interceptor = new TransactionInterceptor(transactionManager, attributeSource);
gateway.setAdviceChain(singletonList(interceptor));
return gateway;
}
@Bean
public JpaExecutor updateEventExecutor() {
JpaExecutor executor = new JpaExecutor(this.entityManagerFactory);
executor.setJpaQuery("update Event E set E.eventStatus = 1 where E.eventStoreId in (:eventStoreId)");
executor.setJpaParameters(Collections.singletonList(new JpaParameter("Event.eventStoreId", null, "payload")));
executor.setUsePayloadAsParameterSource(true);
executor.setEntityClass(Event.class);
return executor;
}
}
方法调用剩余服务。然后在ngAfterViewInit中，我正在编写以下代码进行排序。
ngOnInit()但是发生的事情是它不是在等待其余服务完成执行，而是在ngAfterViewInit() {
this.dataSource.sort = this.sort;
}
完成执行之前调用ngAfterViewInit。
由于上述原因，在我显示表格的网页中未进行排序。
答案 0 :(得分：1)
Saroj，您可以为此使用 setTimeOut 。如果您提供更多详细信息，我们可以采用其他方式。
ngAfterViewInit() {
setTimeout(() => {
this.dataSource.sort = this.sort;
}, 500);
}