NullADQLIterator

java.lang.Object
- adql.query.NullADQLIterator

All Implemented Interfaces:

ADQLIterator, java.util.Iterator<ADQLObject>
```
public class NullADQLIterator
extends java.lang.Object
implements ADQLIterator
```
An ADQL iterator which has no ADQL objects on which iterate.

Version:

06/2011

Author:

Grégory Mantelet (CDS)

Constructor Summary

Constructors
Constructor Description

NullADQLIterator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`hasNext()`
`ADQLObject`	`next()`
`void`	`remove()`
`void`	`replace(ADQLObject replacer)`	Replaces the current ADQL object by the given ADQL object.

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

- Constructor Detail
  - NullADQLIterator
```
public NullADQLIterator()
```
- Method Detail
  - hasNext
```
public boolean hasNext()
```
    Specified by:
    
    hasNext in interface java.util.Iterator<ADQLObject>
  - next
```
public ADQLObject next()
```
    Specified by:
    
    next in interface java.util.Iterator<ADQLObject>
  - remove
```
public void remove()
```
    Specified by:
    
    remove in interface java.util.Iterator<ADQLObject>
  - replace
```
public void replace(ADQLObject replacer)
             throws java.lang.UnsupportedOperationException,
                    java.lang.IllegalStateException
```
    Description copied from interface: ADQLIterator
    
    Replaces the current ADQL object by the given ADQL object. This method can be called only one time per call to next.
    
    Specified by:
    
    replace in interface ADQLIterator
    
    Parameters:
    
    replacer - The ADQL object which has to replace the current object.
    
    Throws:
    
    java.lang.UnsupportedOperationException - If the replace operation is not supported by this ADQLIterator.
    
    java.lang.IllegalStateException - If the next method has not yet been called, or the replace method has already been called after the last call to the next method.