applyIfNonNull looks to be a version of Optional without the Optional
object. The following is the same as suggested but with an additional
Optional object:
Optional.ofNullable(valueX).ifPresent(bean::setValue);
Optional.ofNullable(valueX).ifPresent(v -> someObject.compute(v,
"bar"));
Or, combined:
Optional.ofNullable(valueX).ifPresent(v -> {
bean.setValue(v);
someObject.compute(v, "bar");
});
The new method is shorter and saves the Optional object, so it may have
some value. I think I've even written the applyIfNonNull method myself
several times.
On 28/12/2020 15:39, Gary Gregory wrote:
Hi Bindul,
Let's see what this would look like with a PR :-)
Gary
On Mon, Dec 28, 2020, 01:23 Bindul Bhowmik <bindulbhow...@gmail.com> wrote:
Hi,
I would like to propose an enhancement to the ObjectUtils class in lang:
Background: I have seen multiple places in code where we have to check
if a value is null before using it in a setter or other method, like:
if (valueX != null) {
bean.setValue(valueX);
someObject.compute(valueX, "bar");
}
I was wondering if there is interest to add a method like the
following in ObjectUtils:
public static <T> void applyIfNonNull(final Consumer<T> consumer,
final T object)
public static <T> void applyFirstNonNull(final Consumer<T>
consumer, final T... objects)
With this the two statements above could be applied as:
ObjectUtils.applyIfNonNull(bean::setValue, valueX);
ObjectUtils.appyIfNonNull(v -> someObject.compute(v, "bar"), valueX);
Of course, the benefit of this increases with more such null checks we
need in the code that can be replaced by single statements.
I am happy to open a JIRA and GH pull request if there is interest in
this minor enhancement.
Bindul
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