Class DirectoryIterator

java.lang.Object

org.codehaus.commons.compiler.util.iterator.ProducerIterator<File>

org.codehaus.commons.compiler.util.iterator.DirectoryIterator

All Implemented Interfaces:

Iterator<File>

public class DirectoryIterator
extends ProducerIterator<File>

An Iterator<File> that finds regular files who's names are accepted by the fileNameFilter and

• exist in the given rootDirectory, or
• exist in any subdirectory of the rootDirectory that is accepted by the directoryNameFilter.

The returned iterator will throw a DirectoryIterator.DirectoryNotListableException when one of the relevant directories cannot be listed.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DirectoryIterator.DirectoryNotListableException	Indicates that File.listFiles() returned null for a particular directory.

Constructor Summary

Constructors

Constructor	Description
DirectoryIterator(File rootDirectory, FilenameFilter directoryNameFilter, FilenameFilter fileNameFilter)

Method Summary

Modifier and Type	Method	Description
private static <T> ArrayList<T>	newArrayList(T initialElement)
static Iterator<File>	traverseDirectories(File[] rootDirectories, FilenameFilter directoryNameFilter, FilenameFilter fileNameFilter)	Creates an Iterator that returns all matching Files locatable in a set of root directories.

Methods inherited from class ProducerIterator

hasNext, next, remove

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining

Constructor Details

DirectoryIterator

public DirectoryIterator(File rootDirectory,
 FilenameFilter directoryNameFilter,
 FilenameFilter fileNameFilter)

Method Details

traverseDirectories

public static Iterator<File> traverseDirectories(File[] rootDirectories,
 FilenameFilter directoryNameFilter,
 FilenameFilter fileNameFilter)

Creates an Iterator that returns all matching Files locatable in a set of root directories.

See Also:

• DirectoryIterator(File, FilenameFilter, FilenameFilter)

newArrayList

private static <T> ArrayList<T> newArrayList(T initialElement)