AbstractIterator (Manifold :: Core Runtime 2026.1.6 API)

java.lang.Object
- manifold.rt.api.util.AbstractIterator<T>

All Implemented Interfaces:

Iterator<T>
```
public abstract class AbstractIterator<T>
extends Object
implements Iterator<T>
```
A base class to simplify implementing iterators so that implementations only have to implement [computeNext] to implement the iterator, calling [done] when the iteration is complete.

Constructor Summary

Constructors
Constructor Description

AbstractIterator()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected abstract void`	`computeNext()`	Computes the next item in the iterator.
`protected void`	`done()`	Sets the state to done so that the iteration terminates.
`boolean`	`hasNext()`
`T`	`next()`
`protected void`	`setNext(T value)`	Sets the next value in the iteration, called from the [computeNext] function

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, remove

- Constructor Detail
  - AbstractIterator
```
public AbstractIterator()
```
- Method Detail
  - computeNext
```
protected abstract void computeNext()
```
    Computes the next item in the iterator.
    This callback method should call one of these two methods:
    * [setNext] with the next value of the iteration * [done] to indicate there are no more elements
    Failure to call either method will result in the iteration terminating with a failed state
  - hasNext
```
public boolean hasNext()
```
    Specified by:
    
    hasNext in interface Iterator<T>
  - next
```
public T next()
```
    Specified by:
    
    next in interface Iterator<T>
  - setNext
```
protected void setNext(T value)
```
    Sets the next value in the iteration, called from the [computeNext] function
  - done
```
protected void done()
```
    Sets the state to done so that the iteration terminates.