WrapperIterator

java.lang.Object

com.mchange.v1.util.WrapperIterator

All Implemented Interfaces:: Iterator

public abstract class WrapperIterator extends Object implements Iterator

This implementation does not yet support removes once hasNext() has been called... will add if necessary.

Field Summary

Fields

Modifier and Type

Field

Description

protected static final Object

SKIP_TOKEN
Constructor Summary

Constructors

Constructor

Description

WrapperIterator(Iterator inner)

WrapperIterator(Iterator inner, boolean supports_remove)
Method Summary

Modifier and Type

Method

Description

boolean

hasNext()

Object

next()

void

remove()

protected abstract Object

transformObject(Object o)

return SKIP_TOKEN to indicate an object should be skipped, i.e., not exposed as part of the iterator.

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

Field Details
- SKIP_TOKEN
  
  protected static final Object SKIP_TOKEN
Constructor Details
- WrapperIterator
  
  public WrapperIterator(Iterator inner, boolean supports_remove)
- WrapperIterator
  
  public WrapperIterator(Iterator inner)
Method Details
- hasNext
  
  public boolean hasNext()
  
  Specified by:
  
  hasNext in interface Iterator
- next
  
  public Object next()
  
  Specified by:
  
  next in interface Iterator
- remove
  
  public void remove()
  
  Specified by:
  
  remove in interface Iterator
- transformObject
  
  protected abstract Object transformObject(Object o)
  
  return SKIP_TOKEN to indicate an object should be skipped, i.e., not exposed as part of the iterator. (we don't use null, because we want to support iterators over null-accepting Collections.)