完成redisson分布式容器的文档阅读

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2023-02-07 23:11:25 +08:00
parent 3a57ae584a
commit 40918e6277

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@@ -1176,4 +1176,39 @@ buffer.add(6);
- tryTransfer会非阻塞的添加元素当存在消费者调用poll获取当前元素时该方法会将元素交给消费者否则返回false。
- transfer会阻塞等待直到有消费者线程来获取该元素
> 当调用阻塞版本trasfer之后直到该transfer返回其他线程无法向TransferQueue中添加元素。
```java
RTransferQueue<String> queue = redisson.getTransferQueue("myCountDownLatch");
queue.transfer("data");
// or try transfer immediately
queue.tryTransfer("data");
// or try transfer up to 10 seconds
queue.tryTransfer("data", 10, TimeUnit.SECONDS);
// in other thread or JVM
queue.take();
// or
queue.poll();
```
### Time Series
基于Redis的TimeSeries允许按照Timestamp来存储值并且支持为entry设置ttl。
TimeSeries的使用如下所示
```java
RTimeSeries<String> ts = redisson.getTimeSeries("myTimeSeries");
ts.add(201908110501, "10%");
ts.add(201908110502, "30%");
ts.add(201908110504, "10%");
ts.add(201908110508, "75%");
// entry time-to-live is 10 hours
ts.add(201908110510, "85%", 10, TimeUnit.HOURS);
ts.add(201908110510, "95%", 10, TimeUnit.HOURS);
String value = ts.get(201908110508);
ts.remove(201908110508);
Collection<String> values = ts.pollFirst(2);
Collection<String> range = ts.range(201908110501, 201908110508);
```