|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object org.apache.commons.functor.core.collection.Size<A>
public final class Size<A>
Returns the size of the specified Collection, or the length of the specified array or String.
Constructor Summary | |
---|---|
Size()
Create a new Size. |
Method Summary | |
---|---|
boolean |
equals(Object that)
Indicates whether some other object is "equal to" this functor. |
Integer |
evaluate(Object obj)
Evaluate this function. |
int |
hashCode()
Returns a hash code for this functor adhering to the general Object.hashCode contract. |
static Size<Object> |
instance()
Get a Size instance. |
String |
toString()
Returns a human readable description of this functor. |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
---|
public Size()
Method Detail |
---|
public Integer evaluate(Object obj)
evaluate
in interface UnaryFunction<A,Integer>
obj
- the A object to evaluate
public boolean equals(Object that)
Object.equals
contract.
Additionally, this method can return
true only if the specified Object implements
the same functor interface and is known to produce the same
results and/or side-effects for the same arguments (if any).
While implementators are strongly encouraged to override
the default Object implementation of this method,
note that the default Object implementation
does in fact adhere to the functor equals
contract.
equals
in interface Functor
equals
in class Object
that
- the object to compare this functor to
true
iff the given object implements
this functor interface, and is known to produce the same
results and/or side-effects for the same arguments
(if any).Functor.hashCode()
public int hashCode()
Object.hashCode
contract.
Implementators are strongly encouraged but not
strictly required to override the default Object
implementation of this method.
hashCode
in interface Functor
hashCode
in class Object
Functor.equals(java.lang.Object)
public String toString()
Object
implementation of this method.
toString
in interface Functor
toString
in class Object
public static Size<Object> instance()
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |