public abstract class net.sf.pizzacompiler.util.Enumerator<A>

java.lang.Object
   |
   +----net.sf.pizzacompiler.util.Enumerator<A>

public abstract class Enumerator<A>
  implements Enumeration<A>

an abstract class for implementations of the Enumeration interface

Enumerator()

concat(Enumerator<A>)

concat another enumerator, to be called when this one is done

dropWhile((A) -> boolean)

return enumerator that starts with the first element of this enumerator for which `p' holds,

filter((A) -> boolean)

return enumerator that yields all element of this enumerator that satisfy predicate `p'.

forall((A) -> B)

apply function `f' to all elements of this enumerator

hasMoreElements()

the Enumeration methods

map((A) -> B)

return enumerator that yields `f' applied to each element of this enumerator

nextElement()

reduceLeft(B, (B, A) -> B)

reduce all elements of this enumerator with binary operation `f', starting with `z'

reduceRight((A, B) -> B, B)

reduce all elements of this enumerator with binary operation `f', starting with `z'

takeWhile((A) -> boolean)

return elements of this enumerator as long as predicate `p' is true

public Enumerator();

public abstract boolean hasMoreElements();

the Enumeration methods

nextElement

public abstract A nextElement();

concat

public Enumerator<A> concat(Enumerator<A> rest);

concat another enumerator, to be called when this one is done

map

public <B> Enumerator<B> map((A) -> B f);

return enumerator that yields `f' applied to each element of this enumerator

takeWhile

public Enumerator<A> takeWhile((A) -> boolean p);

return elements of this enumerator as long as predicate `p' is true

dropWhile

public Enumerator<A> dropWhile((A) -> boolean p);

return enumerator that starts with the first element of this enumerator for which `p' holds, and then continues with all subsequent elements of this enumerator

filter

public Enumerator<A> filter((A) -> boolean p);

return enumerator that yields all element of this enumerator that satisfy predicate `p'.

forall

public <B> void forall((A) -> B f);

apply function `f' to all elements of this enumerator

reduceLeft

public <B> B reduceLeft(B z,
                        (B, A) -> B f);

reduce all elements of this enumerator with binary operation `f', starting with `z'. Operations are grouped to the left.

reduceRight

public <B> B reduceRight((A, B) -> B f,
                         B z);

reduce all elements of this enumerator with binary operation `f', starting with `z'. Operations are grouped to the right.

net.sf.pizzacompiler.util.Enumerator.html