JML

org.jmlspecs.jmlunit.strategies
Class ByteAbstractFilteringIteratorDecorator

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.ByteAbstractIterator
      extended byorg.jmlspecs.jmlunit.strategies.ByteAbstractFilteringIteratorDecorator
All Implemented Interfaces:
ByteIterator, Cloneable, IndefiniteIterator
Direct Known Subclasses:
ByteAbstractFilteringStrategyDecorator.NewIter, ByteNonNegativeIteratorDecorator

public abstract class ByteAbstractFilteringIteratorDecorator
extends ByteAbstractIterator

An filtering decorator for an indefinite iterator over type byte.

Author:
Gary T. Leavens

Field Summary
private  ByteIterator rawElems
           
 
Constructor Summary
ByteAbstractFilteringIteratorDecorator(ByteIterator iter)
          Initialize this iterator decorator
ByteAbstractFilteringIteratorDecorator(ByteIterator iter, byte ignored)
          Partially intialize this iterator decorator, with a call to initialize needed after this call.
 
Method Summary
 void advance()
          Advance the state of this iteration to the next position.
abstract  boolean approve(byte elem)
          Return true if the element is to be returned by the getByte() method.
 boolean atEnd()
          Is this iterator at its end?
 Object clone()
          Return a copy of this iterator in the same state as this object.
 byte getByte()
          Return the current approved element.
 void initialize()
          Complete initialization of this object.
private  void setCursor()
          Set the cursor to the next element that is approved, if any.
 String toString()
           
 
Methods inherited from class org.jmlspecs.jmlunit.strategies.ByteAbstractIterator
get
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

rawElems

private ByteIterator rawElems
Constructor Detail

ByteAbstractFilteringIteratorDecorator

public ByteAbstractFilteringIteratorDecorator(ByteIterator iter)
Initialize this iterator decorator


ByteAbstractFilteringIteratorDecorator

public ByteAbstractFilteringIteratorDecorator(ByteIterator iter,
                                              byte ignored)
Partially intialize this iterator decorator, with a call to initialize needed after this call.

Method Detail

initialize

public void initialize()
Complete initialization of this object.


setCursor

private void setCursor()
Set the cursor to the next element that is approved, if any.


approve

public abstract boolean approve(byte elem)
Return true if the element is to be returned by the getByte() method.


atEnd

public boolean atEnd()
Description copied from interface: IndefiniteIterator
Is this iterator at its end? That is, if we called get(), would it throw an exception?


getByte

public byte getByte()
             throws NoSuchElementException
Return the current approved element.

Throws:
NoSuchElementException

advance

public void advance()
Description copied from interface: IndefiniteIterator
Advance the state of this iteration to the next position. Note that this never throws an exception.


clone

public Object clone()
Description copied from interface: ByteIterator
Return a copy of this iterator in the same state as this object.

Specified by:
clone in interface ByteIterator
Overrides:
clone in class ByteAbstractIterator

toString

public String toString()
Overrides:
toString in class Object

JML

JML is Copyright (C) 1998-2002 by Iowa State University and is distributed under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This release depends on code from the MultiJava project and is based in part on the Kopi project Copyright (C) 1990-99 DMS Decision Management Systems Ges.m.b.H.