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/> Google Guava 项目提供了,可用作: Primitives.isWrapperType(e.value()。getClass ))
This may sound moronic, but please forgive me, I'm working with moronic code. What is the best way, given a collection of objects, to identify which are primitives, or more accurately, wrappers around primitives.
Suppose I want to print all primitives:
HashMap<String,Object> context = GlobalStore.getContext(); // Some bizarre, strangely populated context
for(Entry<String,Object> e : context.entrySet()){
if(e.value() instanceof PRIMITIVE){ // What goes here?
System.out.println(e);
}
}
Is this possible, other than by enumerating all primitives one by one?
解决方案
The excellent Google Guava project provides a Primitives.isWrapperType(Class) which could be used as:
Primitives.isWrapperType(e.value().getClass())
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