AbstractCloseableIterator (Eclipse RDF4J 4.3.2)

java.lang.Object
- org.eclipse.rdf4j.common.iterator.AbstractCloseableIterator<E>

All Implemented Interfaces:

Closeable, AutoCloseable, Iterator<E>

Direct Known Subclasses:

LookAheadIterator
```
public abstract class AbstractCloseableIterator<E>
extends Object
implements Iterator<E>, Closeable
```
Author:

MJAHale

Constructor Summary

Constructors
Constructor Description

AbstractCloseableIterator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Calls `handleClose()` upon first call and makes sure this method gets called only once.
`protected void`	`handleAlreadyClosed()`
`protected void`	`handleClose()`	Called by `close()` when it is called for the first time.
`boolean`	`isClosed()`	Checks whether this Iterator has been closed.

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, hasNext, next, remove

- Constructor Detail
  - AbstractCloseableIterator
```
public AbstractCloseableIterator()
```
- Method Detail
  - isClosed
```
public final boolean isClosed()
```
    Checks whether this Iterator has been closed.
    
    Returns:
    
    true if the Iterator has been closed, false otherwise.
  - close
```
public final void close()
                 throws IOException
```
    Calls handleClose() upon first call and makes sure this method gets called only once.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Throws:
    
    IOException
  - handleClose
```
protected void handleClose()
                    throws IOException
```
    Called by close() when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.
    
    Throws:
    
    X
    
    IOException
  - handleAlreadyClosed
```
protected void handleAlreadyClosed()
                            throws IOException
```
    Throws:
    
    IOException