Java – pass additional (second) parameters to guava predicate

I have this predicate to filter my task objects by date:

Predicate<Task> startDateFiltering = new Predicate<Task>() {
    @Override
    public boolean apply(Task input) {
        return input.getStartDate() != null
                && input.getStartDate().after(date);
    }

};

As long as the date variable can be accessed in context, there is no problem using it However, I want to make it reusable and embed it in the task class itself by doing the following:

public static final Predicate<Task> startDateFiltering = new Predicate<Task>() {
    @Override
    public boolean apply(Task input) {
        return input.getStartDate() != null
                && input.getStartDate().after(date);
    }

};

To make it a task every time you need it Startdatefiltering access But how do you pass the date parameter to it?

Solution

I created a static factory method (or just create a new instance each time)

public static Predicate<Task> startDateFilteringWithDate(final Date date) {
    return new Predicate<Task>() {
        @Override
        public boolean apply(Task input) {
            return input.getStartDate() != null
                && input.getStartDate().after(date);
        }
    };
}