messif.objects.extraction
Class ExtractorIterator<T extends LocalAbstractObject>
java.lang.Object
messif.objects.util.AbstractObjectIterator<T>
messif.objects.extraction.ExtractorIterator<T>
- Type Parameters:
T
- the class of objects returned by this iterator
- All Implemented Interfaces:
- java.util.Iterator<T>, ObjectProvider<T>
public class ExtractorIterator<T extends LocalAbstractObject>
- extends AbstractObjectIterator<T>
Iterator that provides objects by Extractor
.
The iterator is initialized by given extractor and ExtractorDataSource
and
returns objects until the extraction fails or an end of the data source is reached.
Method Summary |
T |
getCurrentObject()
Returns an object returned by the last call to Iterator.next() . |
boolean |
hasNext()
|
T |
next()
|
void |
remove()
|
void |
reset()
Reset the associated data source and restarts the iteration from beginning. |
Methods inherited from class messif.objects.util.AbstractObjectIterator |
getCurrentObjectID, getMatchingObjects, getMatchingObjects, getMatchingObjects, getMatchingObjects, getObjectByAnyLocator, getObjectByData, getObjectByID, getObjectByLocator, getObjectByPosition, getRandomObject, getRandomObjects, nextObjectID, provideObjects |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ExtractorIterator
public ExtractorIterator(Extractor<? extends T> extractor,
ExtractorDataSource dataSource)
- Creates a new instance of ExtractorIterator.
- Parameters:
extractor
- the extractor to use for creating objectsdataSource
- the data source for the extractor
getCurrentObject
public T getCurrentObject()
throws java.util.NoSuchElementException
- Description copied from class:
AbstractObjectIterator
- Returns an object returned by the last call to
Iterator.next()
.
- Specified by:
getCurrentObject
in class AbstractObjectIterator<T extends LocalAbstractObject>
- Returns:
- an object returned by the last call to
Iterator.next()
- Throws:
java.util.NoSuchElementException
- if Iterator.next()
has not been called yet
hasNext
public boolean hasNext()
next
public T next()
throws java.util.NoSuchElementException
- Throws:
java.util.NoSuchElementException
remove
public void remove()
reset
public void reset()
throws java.io.IOException
- Reset the associated data source and restarts the iteration from beginning.
- Throws:
java.io.IOException
- if there was an I/O error reseting the data source