org.apache.commons.io

Class FileDeleteStrategy

java.lang.Object

org.apache.commons.io.FileDeleteStrategy

public class FileDeleteStrategy
extends java.lang.Object

Strategy for deleting files.

There is more than one way to delete a file. You may want to limit access to certain directories, to only delete directories if they are empty, or maybe to force deletion.

This class captures the strategy to use and is designed for user subclassing.

Since:

1.3

Field Summary

Fields

Modifier and Type	Field and Description
static FileDeleteStrategy	FORCE The singleton instance for forced file deletion, which always deletes, even if the file represents a non-empty directory.
static FileDeleteStrategy	NORMAL The singleton instance for normal file deletion, which does not permit the deletion of directories that are not empty.

Method Summary

Modifier and Type	Method and Description
void	delete(java.io.File fileToDelete) Deletes the file object, which may be a file or a directory.
boolean	deleteQuietly(java.io.File fileToDelete) Deletes the file object, which may be a file or a directory.
java.lang.String	toString() Gets a string describing the delete strategy.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NORMAL

public static final FileDeleteStrategy NORMAL

The singleton instance for normal file deletion, which does not permit the deletion of directories that are not empty.

FORCE

public static final FileDeleteStrategy FORCE

The singleton instance for forced file deletion, which always deletes, even if the file represents a non-empty directory.

Method Detail

deleteQuietly

public boolean deleteQuietly(java.io.File fileToDelete)

Deletes the file object, which may be a file or a directory. All IOExceptions are caught and false returned instead. If the file does not exist or is null, true is returned.

Subclass writers should override doDelete(File), not this method.

Parameters:

fileToDelete - the file to delete, null returns true

Returns:

true if the file was deleted, or there was no such file

delete

public void delete(java.io.File fileToDelete)
            throws java.io.IOException

Deletes the file object, which may be a file or a directory. If the file does not exist, the method just returns.

Subclass writers should override doDelete(File), not this method.

Parameters:

fileToDelete - the file to delete, not null

Throws:

java.lang.NullPointerException - if the file is null

java.io.IOException - if an error occurs during file deletion

toString

public java.lang.String toString()

Gets a string describing the delete strategy.

Overrides:

toString in class java.lang.Object

Returns:

a string describing the delete strategy