AbstractIterator (Net4j Utilities Documentation)

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org.eclipse.net4j.util.collection
Class AbstractIterator<T>

java.lang.Object
  org.eclipse.net4j.util.collection.AbstractIterator<T>

All Implemented Interfaces:: Iterator<T>

Direct Known Subclasses:: AbstractFilteredIterator, AbstractListIterator

public abstract class AbstractIterator<T>: extends Object; implements Iterator<T>

An abstract base class for custom iterators that only requires to implement a single computeNextElement() method.

Since:: 3.2

Field Summary
`protected static Object`	`END_OF_DATA` The token to be used in `computeNextElement()` to indicate the end of the iteration.

Constructor Summary
`AbstractIterator()`

Method Summary
`protected abstract Object`	`computeNextElement()` Returns the next iteration element, or `END_OF_DATA` if the end of the iteration has been reached.
`boolean`	`hasNext()`
`T`	`next()`
`void`	`remove()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

END_OF_DATA

protected static final Object END_OF_DATA

The token to be used in computeNextElement() to indicate the end of the iteration.

Constructor Detail

AbstractIterator

public AbstractIterator()

Method Detail

hasNext

public final boolean hasNext()

Specified by:: hasNext in interface Iterator<T>

public final T next()

Specified by:: next in interface Iterator<T>

remove

public void remove()

Specified by:: remove in interface Iterator<T>

computeNextElement

protected abstract Object computeNextElement()

Returns the next iteration element, or END_OF_DATA if the end of the iteration has been reached.