org.apache.jackrabbit.spi.commons.iterator
Class BoundedIterator<T>
java.lang.Object
org.apache.jackrabbit.spi.commons.iterator.BoundedIterator<T>
- Type Parameters:
T
- element type
- All Implemented Interfaces:
- Iterator<T>
public class BoundedIterator<T>
- extends Object
- implements Iterator<T>
Implements a bounded iterator which only returns a maximum number of element from an underlying iterator
starting at a given offset.
Constructor Summary |
BoundedIterator(long offset,
long max,
Iterator<T> iterator)
Create a new bounded iterator with a given offset and maximum |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
BoundedIterator
public BoundedIterator(long offset,
long max,
Iterator<T> iterator)
- Create a new bounded iterator with a given offset and maximum
- Parameters:
offset
- offset to start iteration at. Must be non negativemax
- maximum elements this iterator should return. Set to -1 for alliterator
- the underlying iterator
- Throws:
IllegalArgumentException
- if offset is negative
create
public static <T> Iterator<T> create(long offset,
long max,
Iterator<T> iterator)
- Factory for creating a bounded iterator.
- Type Parameters:
T
- element type- Parameters:
offset
- offset to start iteration at. Must be non negativemax
- maximum elements this iterator should return. Set to -1 for alliterator
- the underlying iterator
- Returns:
- an iterator which only returns the elements in the given bounds
- See Also:
BoundedIterator(long, long, java.util.Iterator)
hasNext
public boolean hasNext()
- Specified by:
hasNext
in interface Iterator<T>
next
public T next()
- Specified by:
next
in interface Iterator<T>
remove
public void remove()
- Specified by:
remove
in interface Iterator<T>
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