Hi,
Instead of using a predicate, wouldn't it be simpler to just use
if (false == Arrays.asList(obj1, obj2, ...).contains(null)) ?
Just my 2 cents,
Julien
2013/7/5 Romain Manni-Bucau <rmannibu...@gmail.com>:
> Hi
>
> I'd just provide a IsNullPredicate class (a singleton) and then use
> commons-collection to select the subcollection and if size is 0 or original
> size (depend what you test) it would be true
>
> That said with next java version it will be quite useless IMO
> Le 4 juil. 2013 22:04, "Rafael Santini" <raf...@santini.eti.br> a écrit :
>
>> Hi Ted,
>>
>> I have some codes that needs to test whether a set of objects are all true
>> or not. For example:
>>
>> if (obj1 != null && obj2 != null && obj3 != null && obj4 != null) {
>> // Do something...
>> }
>>
>> So, for readability reason, I have replaced for:
>>
>> if (isNotTrue(obj1, obj2, obj3, obj4) {
>> // Do something...
>> }
>>
>> So I would like something like the isNotNull(Object... objects) method in
>> Commons Lang instead of maintain this method in my own framework.
>>
>> Thanks,
>>
>> Rafael Santini
>>
>> -----Mensagem Original----- From: Ted Dunning
>> Sent: Thursday, July 04, 2013 4:34 PM
>> To: Commons Developers List
>> Subject: Re: Lang: ObjectUtils
>>
>> A bigger question is why this is needed at all.
>>
>> Why not just use composition? In guava, one would do this:
>>
>> Iterables.all(Arrays.asList(**foo), new Predicate<Double>() {
>> @Override
>> public boolean apply(Double input) {
>> return input != null;
>> }
>> });
>>
>> Surely the same is already possible with commons.
>>
>>
>>
>> On Thu, Jul 4, 2013 at 12:23 PM, Dave Brosius <dbros...@mebigfatguy.com>**
>> wrote:
>>
>> This implies that having arrays with some null elements is
>>>
>>> a) somewhat common
>>> 2) a good idea
>>>
>>>
>>> I'd say both are not true.
>>>
>>> I'm not sure the library should promote that the above is the case.
>>>
>>>
>>>
>>> On 07/04/2013 02:43 PM, Rafael Santini wrote:
>>>
>>> Hi,
>>>>
>>>> I would like to propose a method in ObjectUtils class that receives an
>>>> array of objects and returns true if all objects are not null. I have
>>>> implemented the following:
>>>>
>>>> public static boolean isNull(Object object) {
>>>> return object == null;
>>>> }
>>>>
>>>> public static boolean isNotNull(Object object) {
>>>> return isNull(object) == false;
>>>> }
>>>>
>>>> public static boolean isNotNull(Object... objects) {
>>>> for (Object object : objects) {
>>>> if (isNull(object)) {
>>>> return false;
>>>> }
>>>> }
>>>> return true;
>>>> }
>>>>
>>>> Can I submit a patch for this feature?
>>>>
>>>> Thanks,
>>>>
>>>> Rafael Santini
>>>>
>>>>
>>>>
>>>>
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