6- Completable Futures

Jul 03, 2026 23:03 · 1:38 · English · Whisper Turbo · 2 发言者

本记录稿今天到期。永久储存的升级 →

讲座索引

0:03

S… Speaker 1 (6- Completable Futures)

Throughout the rest of this section,

0:05

S… Speaker 1 (6- Completable Futures)

we're going to talk about a very important type called completable future.

0:08

S… Speaker 1 (6- Completable Futures)

As you can see this class implements the future interface.

0:12

S… Speaker 1 (6- Completable Futures)

So every completable future is a future object.

0:15

S… Speaker 1 (6- Completable Futures)

Now the reason this is called completable future is that with this we can

0:19

S… Speaker 1 (6- Completable Futures)

explicitly complete a future object.

0:22

S… Speaker 1 (6- Completable Futures)

This is not something that we can do with the future interface.

0:25

S… Speaker 1 (6- Completable Futures)

Now, this class also implements another interface called completion stage.

0:29

S… Speaker 1 (6- Completable Futures)

If you look at the documentation,

0:31

S… Speaker 1 (6- Completable Futures)

it says that this interface represents a stage of a

0:35

S… Speaker 1 (6- Completable Futures)

possibly asynchronous operation.

0:37

S… Speaker 2 (6- Completable Futures)

What does this mean?

0:38

S… Speaker 2 (6- Completable Futures)

Well,

0:39

S… Speaker 1 (6- Completable Futures)

in the real world,

0:40

S… Speaker 1 (6- Completable Futures)

quite often an asynchronous operation involves many steps.

0:43

S… Speaker 1 (6- Completable Futures)

For example,

0:44

S… Speaker 1 (6- Completable Futures)

we may call a remote API to get some data.

0:46

S… Speaker 1 (6- Completable Futures)

That is one step.

0:47

S… Speaker 1 (6- Completable Futures)

Then perhaps we want to transform that data into a different structure.

0:50

S… Speaker 1 (6- Completable Futures)

That's another step.

0:52

S… Speaker 1 (6- Completable Futures)

And finally,

0:53

S… Speaker 1 (6- Completable Futures)

we want to write that data into a database.

0:54

S… Speaker 1 (6- Completable Futures)

That's another step.

0:55

S… Speaker 1 (6- Completable Futures)

This interface represents a step or a stage of an asynchronous operation.

1:00

S… Speaker 1 (6- Completable Futures)

And it gives us a bunch of methods for combining and composing

1:04

S… Speaker 1 (6- Completable Futures)

these steps in a declarative way,

1:06

S… Speaker 1 (6- Completable Futures)

kind of like how we use the streams API to build a complex query in

1:10

S… Speaker 2 (6- Completable Futures)

a declarative way.

1:11

S… Speaker 2 (6- Completable Futures)

Earlier,

1:12

S… Speaker 1 (6- Completable Futures)

we use the map filter and reduce methods to build a complex query.

1:16

S… Speaker 1 (6- Completable Futures)

Now we can do the same thing with this completion stage interface.

1:20

S… Speaker 1 (6- Completable Futures)

I'm going to show you how to do that later in this section.

1:22

S… Speaker 1 (6- Completable Futures)

So over the next few videos,

1:24

S… Speaker 1 (6- Completable Futures)

we're going to talk about the completable feature class.

1:27

S… Speaker 1 (6- Completable Futures)

I'm going to show you how to use this class to build complex asynchronous

1:31

S… Speaker 1 (6- Completable Futures)

operations.

1:32

S… Speaker 1 (6- Completable Futures)

But first,

1:32

S… Speaker 1 (6- Completable Futures)

let me show you how to create a completable feature object.

这份录音记录是AI(自动语音识别)生成的,可能包含错误——与用于关键用途的原始音频核对。大赦国际的政策

❤️ 喜欢 STT.ai 吗? 告诉你的朋友!

摘要

点击摘要以生成本记录誊本的 AI 摘要。

询问 AI 有关此分页

询问任何有关这一记录,大赦国际将找到有关章节和答复。

另写一个