org.springframework.expression.spel.ast.Projection
Represents projection, where a given operation is performed on all elements in some input sequence, returning a new sequence of the same size. For example: "{1,2,3,4,5,6,7,8,9,10}.!{#isEven(#this)}" returns "[n, y, n, y, n, y, n, y, n, y]"
@author Andy Clement
@author Mark Fisher
@since 3.0