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## org.jboss.cache.search
Class QueryResultIteratorImpl

    java.lang.Object
      org.jboss.cache.search.QueryResultIteratorImpl

All Implemented Interfaces:
  Iterator, ListIterator, QueryResultIterator

    public class QueryResultIteratorImpl

extends Object
implements QueryResultIterator

This is the implementation class for the interface QueryResultIterator which extends ListIterator. It is what is returned when the iterator() method is run on a CacheQuery instance.

Author:
  Navin Surtani (nsurtani@redhat.com)

Constructor Summary
`QueryResultIteratorImpl(List<CacheEntityId> idList, CacheEntityLoader entityLoader, int fetchSize)`

Method Summary
`void` | `add(Object o)` This method is not supported in and should not be called.
`void` | `afterFirst()` Jumps to second element in the list.
`void` | `beforeLast()` Jumps to penultimate element in the list.
`void` | `close()` This method must be called on your iterator once you have finished so that Lucene resources can be freed up.
`void` | `first()` Jumps to first element in the list.
`boolean` | `hasNext()` Returns true if the list has more elements when traversing the list in the forward direction.
`boolean` | `hasPrevious()` Returns true if the list has more elements when traversing the list in the reverse direction.
`boolean` | `isAfterFirst()`
`boolean` | `isBeforeLast()`
`boolean` | `isFirst()`
`boolean` | `isLast()`
`void` | `jumpToResult(int index)` Jumps to a given index in the list of results.
`void` | `last()` Jumps to last element in the list.
`Object` | `next()` Returns the next element in the list
`int` | `nextIndex()` Returns the index of the element that would be returned by a subsequent call to next.
`Object` | `previous()` Returns the previous element in the list.
`int` | `previousIndex()` Returns the index of the element that would be returned by a subsequent call to previous.
`void` | `remove()` This method is not supported and should not be used.
`void` | `set(Object o)` This method is not supported in and should not be called.

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

Constructor Detail

### QueryResultIteratorImpl

    public QueryResultIteratorImpl(List<CacheEntityId> idList,
                                   CacheEntityLoader entityLoader,
                                   int fetchSize)

Method Detail

### jumpToResult

    public void jumpToResult(int index)
                      throws IndexOutOfBoundsException

  Jumps to a given index in the list of results.

  Specified by:
    `jumpToResult` in interface `QueryResultIterator`
  Parameters:
    `index` - to jump to
  Throws:
    `IndexOutOfBoundsException`

### first

    public void first()

  Jumps to first element in the list.

  Specified by:
    `first` in interface `QueryResultIterator`

### last

    public void last()

  Jumps to last element in the list.

  Specified by:
    `last` in interface `QueryResultIterator`

### afterFirst

    public void afterFirst()

  Jumps to second element in the list.

  Specified by:
    `afterFirst` in interface `QueryResultIterator`

### beforeLast

    public void beforeLast()

  Jumps to penultimate element in the list.

  Specified by:
    `beforeLast` in interface `QueryResultIterator`

### isFirst

    public boolean isFirst()

  Specified by:
    `isFirst` in interface `QueryResultIterator`
  Returns:
    true if the current element is the first in the list.

### isLast

    public boolean isLast()

  Specified by:
    `isLast` in interface `QueryResultIterator`
  Returns:
    true if the current result is the last one.

### isAfterFirst

    public boolean isAfterFirst()

  Specified by:
    `isAfterFirst` in interface `QueryResultIterator`
  Returns:
    true if the current result is one after the first.

### isBeforeLast

    public boolean isBeforeLast()

  Specified by:
    `isBeforeLast` in interface `QueryResultIterator`
  Returns:
    true if the current result is one before the last

### close

    public void close()

  Description copied from interface: `QueryResultIterator`
  This method must be called on your iterator once you have finished so that Lucene resources can be freed up.

  Specified by:
    `close` in interface `QueryResultIterator`

### hasNext

    public boolean hasNext()

  Returns true if the list has more elements when traversing the list in the forward direction.

  Specified by:
    `hasNext` in interface `Iterator`
  Specified by:
    `hasNext` in interface `ListIterator`
  Returns:
    true if the list has more elements when traversing the list in the forward direction.

### next

    public Object next()

  Returns the next element in the list

  Specified by:
    `next` in interface `Iterator`
  Specified by:
    `next` in interface `ListIterator`
  Returns:
    The next element in the list.

### hasPrevious

    public boolean hasPrevious()

  Returns true if the list has more elements when traversing the list in the reverse direction.

  Specified by:
    `hasPrevious` in interface `ListIterator`
  Returns:
    true if the list iterator has more elements when traversing the list in the reverse direction

### previous

    public Object previous()

  Returns the previous element in the list.

  Specified by:
    `previous` in interface `ListIterator`
  Returns:
    The previous element in the list.

### nextIndex

    public int nextIndex()

  Returns the index of the element that would be returned by a subsequent call to next.

  Specified by:
    `nextIndex` in interface `ListIterator`
  Returns:
    Index of next element.

### previousIndex

    public int previousIndex()

  Returns the index of the element that would be returned by a subsequent call to previous.

  Specified by:
    `previousIndex` in interface `ListIterator`
  Returns:
    Index of previous element.

### remove

    public void remove()

  This method is not supported and should not be used. Use cache.remove() instead.

  Specified by:
    `remove` in interface `Iterator`
  Specified by:
    `remove` in interface `ListIterator`

### set

    public void set(Object o)
             throws UnsupportedOperationException

  This method is not supported in and should not be called. Use cache.put() instead.

  Specified by:
    `set` in interface `ListIterator`
  Parameters:
    `o` -
  Throws:
    `UnsupportedOperationException`

### add

    public void add(Object o)

  This method is not supported in and should not be called. Use cache.put() instead.

  Specified by:
    `add` in interface `ListIterator`
  Parameters:
    `o` -
  Throws:
    `UnsupportedOperationException`

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