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@GwtCompatible public interface Function<F,T>
Determines an output value based on an input value.
| Method Summary | |
|---|---|
T |
apply(F input)
Returns the result of applying this function to input. |
boolean |
equals(Object object)
Indicates whether another object is equal to this function. |
| Method Detail |
|---|
T apply(@Nullable
F input)
input. This method is generally
expected, but not absolutely required, to have the following properties:
Objects.equal(a, b) implies that Objects.equal(function.apply(a),
function.apply(b)).
NullPointerException - if input is null and this function does not accept null
arguments
boolean equals(@Nullable
Object object)
Most implementations will have no reason to override the behavior of Object.equals(java.lang.Object).
However, an implementation may also choose to return true whenever object is a
Function that it considers interchangeable with this one. "Interchangeable"
typically means that Objects.equal(this.apply(f), that.apply(f)) is true for all
f of type F. Note that a false result from this method does not imply
that the functions are known not to be interchangeable.
equals in class Object
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