LazyCollection.FilterIterator

java.lang.Object

org.eclipse.m2m.atl.emftvm.util.LazyCollection.ReadOnlyIterator<E>

LazyCollection<E>.CachingIterator

org.eclipse.m2m.atl.emftvm.util.LazyCollection.FilterIterator

All Implemented Interfaces:: Iterator<E>

Direct Known Subclasses:: LazyCollection.RejectIterator, LazyCollection.SelectIterator

Enclosing class:: LazyCollection<E>

public abstract class LazyCollection.FilterIterator extends LazyCollection<E>.CachingIterator

LazyCollection.ReadOnlyIterator that filters elements from the underlying collection by evaluating a condition function on them.

Field Summary

Fields

Modifier and Type

Field

Description

protected final CodeBlock

condition

protected E

next

protected boolean

nextIncluded

protected boolean

nextSet

protected final StackFrame

parentFrame

Fields inherited from class org.eclipse.m2m.atl.emftvm.util.LazyCollection.CachingIterator
i, inner
Constructor Summary

Constructors

Constructor

Description

FilterIterator(CodeBlock condition, StackFrame parentFrame)

Creates a LazyCollection<E>.FilterIterator with condition.
Method Summary

Modifier and Type

Method

Description

boolean

hasNext()

protected abstract boolean

include(E element)

Checks whether to include

E

next()

Methods inherited from class org.eclipse.m2m.atl.emftvm.util.LazyCollection.CachingIterator
updateCache

Methods inherited from class org.eclipse.m2m.atl.emftvm.util.LazyCollection.ReadOnlyIterator
remove

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
- condition
  
  protected final CodeBlock condition
- parentFrame
  
  protected final StackFrame parentFrame
- next
  
  protected E next
- nextSet
  
  protected boolean nextSet
- nextIncluded
  
  protected boolean nextIncluded
Constructor Details
- FilterIterator
  
  public FilterIterator(CodeBlock condition, StackFrame parentFrame)
  
  Creates a LazyCollection<E>.FilterIterator with condition.
  
  Parameters:
  
  condition - the condition function
  
  parentFrame - the parent stack frame context
Method Details
- include
  
  protected abstract boolean include(E element)
  Checks whether to include
  element
  .
  Parameters:
  
  element - the element to filter
  
  Returns:
  
  true iff element should be included in this collection
- hasNext
  
  public boolean hasNext()
  
  Specified by:
  
  hasNext in interface Iterator<E>
  
  Overrides:
  
  hasNext in class LazyCollection<E>.CachingIterator
- next
  
  public E next()
  
  Specified by:
  
  next in interface Iterator<E>
  
  Overrides:
  
  next in class LazyCollection<E>.CachingIterator