What's good way to pass intermediate results? - 未名空间MITBBS历史存档

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What's good way to pass intermediate results?

What's good way to pass intermediate results?# Java - 爪哇娇娃

g*y2005-09-22 07:09

1 楼

In a sequential computing program, what is the best way to pass intermediate
result among classes?
For example, component A generates by-product O, which will be used by
component B and C.
Make by-product O global is one-way, but not good choice.
Pass O from A to B, C is another way, but I don't like that idea either. A
becomes depending on B and C.

g*g2005-09-22 07:09

2 楼

How about keep 0 as a field of A, and make a getter for it.
Pass A to B and C.

【在 g**********y 的大作中提到】

: In a sequential computing program, what is the best way to pass intermediate
: result among classes?
: For example, component A generates by-product O, which will be used by
: component B and C.
: Make by-product O global is one-way, but not good choice.
: Pass O from A to B, C is another way, but I don't like that idea either. A
: becomes depending on B and C.

g*y2005-09-22 07:09

3 楼

That makes B and C depends on A. I really want to cut this dependency. Problem
is, B and C doesn't know A instance. My central controller is configured in
very general way, even controller doesn't know there is an A instance. It
generates objects from XML and execute method as specified.

【在 g*****g 的大作中提到】

: How about keep 0 as a field of A, and make a getter for it.
: Pass A to B and C.

c*r2005-09-22 07:09

4 楼

Create a new component to interact with A, B, and C.
See mediator pattern.

Problem

【在 g**********y 的大作中提到】

:
: That makes B and C depends on A. I really want to cut this dependency. Problem
: is, B and C doesn't know A instance. My central controller is configured in
: very general way, even controller doesn't know there is an A instance. It
: generates objects from XML and execute method as specified.