org.multijava.util.testing
Class FileIterator

java.lang.Object
  org.multijava.util.testing.FileIterator

All Implemented Interfaces:

Iterator

public class FileIterator

extends Object

implements Iterator

This is a utility class that is an iterator over the lines produced by reading a file. It is used in particular by various JUnit tests.

Author:

David R. Cok

Field Summary
private  String	nextLine           The next value to be returned by the iterator.
private  BufferedReader	r           A reader that reads lines from the file.

 

Constructor Summary

FileIterator(String filename)           Starts an iterator reading from the given external process.

 

Method Summary
boolean	hasNext()           Per a standard iterator, returns true if there is another value waiting.
Object	next()           Per a standard iterator, returns the next value - and throws java.util.NoSuchElementException if the list has been exhausted (hasNext() returns false).
void	remove()           This operation will throw an exception, as there is no need for remove in this context.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

r

private BufferedReader r

A reader that reads lines from the file.

nextLine

private String nextLine

The next value to be returned by the iterator. We read ahead one so that we know the value of hasNext() when asked.

FileIterator

public FileIterator(String filename)
             throws IOException

Starts an iterator reading from the given external process.

Throws:

IOException

hasNext

public boolean hasNext()

Per a standard iterator, returns true if there is another value waiting.

Specified by:

hasNext in interface Iterator

next

public Object next()

Per a standard iterator, returns the next value - and throws java.util.NoSuchElementException if the list has been exhausted (hasNext() returns false).

Specified by:

next in interface Iterator

remove

public void remove()

This operation will throw an exception, as there is no need for remove in this context.

Specified by:

remove in interface Iterator