Check if object is null, then check if that object holds not null reference to another object

Question

I have a condition like this:

if (someObject != null)
    {
        templateUri = someObject .getSettingsObject() != null
                ? someObject .getSettingsObject().getPlanUri() : null;
    }

Instead of using multiple null checks, can I club this conditions into a single statement and run my code without getting NULL pointer Exception?

Answer 1

It would be better create a method to handle the case but with a single statement you could do this:

templateUri = (someObject != null) ? (someObject.getSettingsObject()!=null ? someObject.getSettingsObject().getPlanUri() : null ) : templateUri;

If someObject is null templateUri will be replaced with itself.

Answer 2

You can use with nested conditional operator ( ? : )

templateUri = someObject == null ? null 
                   : someObject .getSettingsObject() == null ? null 
                   : someObject .getSettingsObject().getPlanUri();