|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object org.apache.commons.functor.core.algorithm.FoldLeft<T>
T
- the returned evaluation type.public class FoldLeft<T>
Functional left-fold algorithm against the elements of a Generator
.
Uses the seed object (if supplied) as the initial left-side argument to the BinaryFunction
,
then uses the result of that evaluation as the next left-side argument, until the Generator
's
elements have been expended.
Constructor Summary | |
---|---|
FoldLeft(BinaryFunction<? super T,? super T,? extends T> func)
Create a new FoldLeft. |
Method Summary | |
---|---|
boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this functor. |
T |
evaluate(Generator<T> obj)
Evaluate this function. |
T |
evaluate(Generator<T> left,
T right)
Evaluate this function. |
int |
hashCode()
Returns a hash code for this functor adhering to the general Object.hashCode contract. |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.commons.functor.Functor |
---|
toString |
Constructor Detail |
---|
public FoldLeft(BinaryFunction<? super T,? super T,? extends T> func)
func
- BinaryFunction
to apply to each (seed, next)Method Detail |
---|
public final T evaluate(Generator<T> obj)
evaluate
in interface UnaryFunction<Generator<T>,T>
obj
- Generator
to transform
public final T evaluate(Generator<T> left, T right)
evaluate
in interface BinaryFunction<Generator<T>,T,T>
left
- Generator
to transformright
- initial left-side seed object
public boolean equals(Object obj)
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
obj
- 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)
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |