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Simple question

Simple question# Java - 爪哇娇娃

g*y2007-09-27 07:09

1 楼

What's the most efficient data structure in Java to express:
key -> {key1:value1, key2:value2, ... keyN:valueN}
HashMap is one way. Since I need no operation other than
getter/setter, class is kind of heavy. Anything lighter?

g*g2007-09-27 07:09

2 楼

Class is not heavy, just go ahead, a clean structure is way
better than minimal performance gain.

than

【在 g**********y 的大作中提到】

: What's the most efficient data structure in Java to express:
: key -> {key1:value1, key2:value2, ... keyN:valueN}
: HashMap is one way. Since I need no operation other than
: getter/setter, class is kind of heavy. Anything lighter?

A*o2007-09-27 07:09

3 楼

maybe op was doing memory tuning? ^_^

【在 g*****g 的大作中提到】

: Class is not heavy, just go ahead, a clean structure is way
: better than minimal performance gain.
:
: than

m*t2007-09-27 07:09

4 楼

You'd be suprised how much more memory efficient a Bean is than a hashmap.
8-)
Unless the keys in OP are dynamic, I'd define a bean class as bug suggested
and do it The Right Way(tm).

【在 A**o 的大作中提到】

: maybe op was doing memory tuning? ^_^

g*g2007-09-27 07:09

5 楼

Usually when we talk about performance, it's about data structure and
algorithm, the efficiency of single unit access, is far less important.
c << logN and we don't care about it until we have to.

suggested

【在 m******t 的大作中提到】

:
: You'd be suprised how much more memory efficient a Bean is than a hashmap.
: 8-)
: Unless the keys in OP are dynamic, I'd define a bean class as bug suggested
: and do it The Right Way(tm).