问题
I am using JSF 2.0. I don't want to call setter & getter multiple time. Can you help me to avoid that?
回答1:
Why is that bothering you? Those calls are extremely cheap.
Perhaps you're incorrectly invoking expensive business logic in getters/setters instead of in (post)constructor and/or action(listener) methods? That's indeed a very common starter's mistake in JSF. Just don't invoke business logic in getters/setters. Invoke business logic in (post)constructor and/or action(listener) methods instead. Getter/setters are purely meant to get and set the (already-prepared) bean properties.
See also:
- Why JSF calls getters multiple times
来源：https://stackoverflow.com/questions/12740842/jsf-calling-setter-getter-multiple-times