contains All
Returns true
if this filter might contain all of the elements of the specified collection (optional operation). More formally, returns true
if contains== true
for all of the elements of the specified collection.
Return
true
if this filter might contain all elements of the specified collection
Parameters
c
collection containing elements to be checked for containment in this filter
See also
Throws
if the specified collection contains one or more null
elements, or if the specified collection is null
Not supported.