Filtered (cactoos 0.55.0 API)

java.lang.Object
- org.cactoos.iterator.Filtered<X>

Type Parameters:

X - Type of item

All Implemented Interfaces:

Iterator<X>
```
public final class Filtered<X>
extends Object
implements Iterator<X>
```
Filtered iterator.
You can use it in order to create a declarative/lazy version of a filtered collection/iterable. For example, this code will create a list of two strings "hello" and "world":
```
 Iterator<String> list = new Filtered<>(
   new ArrayOf<>(
     "hey", "hello", "world"
   ).iterator(),
   input -> input.length() > 4
 );
 
```
There is no thread-safety guarantee.
Since:

0.1

See Also:

Filtered

Constructor Summary

Constructors
Constructor	Description
`Filtered(Iterator<? extends X> src, Func<? super X,Scalar<Boolean>> fnc)`	Ctor.
`Filtered(Func<? super X,Boolean> fnc, Iterator<? extends X> src)`	Ctor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

boolean hasNext()

X next()

void remove()
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
- Methods inherited from interface java.util.Iterator
  forEachRemaining

Constructor Detail

Filtered

public Filtered(Func<? super X,Boolean> fnc,
                Iterator<? extends X> src)

Ctor.

Parameters:: fnc - Predicate; src - Source iterable

Filtered

public Filtered(Iterator<? extends X> src,
                Func<? super X,Scalar<Boolean>> fnc)

Ctor.

Parameters:: src - Source iterable; fnc - Predicate

Method Detail
- hasNext
```
public boolean hasNext()
```
  Specified by:
  
  hasNext in interface Iterator<X>
- next
```
public X next()
```
  Specified by:
  
  next in interface Iterator<X>
- remove
```
public void remove()
```
  Specified by:
  
  remove in interface Iterator<X>