com.sun.interview

Class ExtensionFileFilter

java.lang.Object

com.sun.interview.ExtensionFileFilter

All Implemented Interfaces:

FileFilter

public class ExtensionFileFilter
extends java.lang.Object
implements FileFilter

A filter which accepts files based on their extension.

Constructor Summary

Constructors

Constructor and Description
ExtensionFileFilter(java.lang.String[] extns, java.lang.String description) Create a filter which accepts files based on their extension.
ExtensionFileFilter(java.lang.String extn, java.lang.String description) Create a filter which accepts files based on their extension.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(java.io.File f) Check if a file is accepted by this filter.
boolean	acceptsDirectories() Check if (all) directories are accepted by this filter.
java.io.File	ensureExtension(java.io.File file) Ensure that a filename ends with one of the extensions accepted by this filter.
java.lang.String	ensureExtension(java.lang.String path) Ensure that a pathname ends with one of the extensions accepted by this filter.
java.lang.String	getDescription() Get a short description for this filter.
boolean	isCaseSensitive() Check whether or not this filter should perform case-sensitive matching for extensions.
void	setCaseSensitive(boolean b) Specify whether or not this filter should perform case-sensitive matching for extensions.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtensionFileFilter

public ExtensionFileFilter(java.lang.String extn,
                   java.lang.String description)

Create a filter which accepts files based on their extension.

Parameters:

extn - The required extension for files that are to be accepted by this filter.

description - A short string describing the filter.

ExtensionFileFilter

public ExtensionFileFilter(java.lang.String[] extns,
                   java.lang.String description)

Create a filter which accepts files based on their extension.

Parameters:

extns - Any array of permissible extensions for files that are to be accepted by this filter.

description - A short string describing the filter.

Method Detail

setCaseSensitive

public void setCaseSensitive(boolean b)

Specify whether or not this filter should perform case-sensitive matching for extensions.

Parameters:

b - true if this filter should perform case-sensitive matching for extensions, and false otherwise

See Also:

isCaseSensitive()

isCaseSensitive

public boolean isCaseSensitive()

Check whether or not this filter should perform case-sensitive matching for extensions.

Returns:

true if this filter should perform case-sensitive matching for extensions, and false otherwise

See Also:

setCaseSensitive(boolean)

accept

public boolean accept(java.io.File f)

Description copied from interface: FileFilter

Check if a file is accepted by this filter.

Specified by:

accept in interface FileFilter

Parameters:

f - The file to be tested.

Returns:

true if the file is accepted by this filter

acceptsDirectories

public boolean acceptsDirectories()

Description copied from interface: FileFilter

Check if (all) directories are accepted by this filter.

Specified by:

acceptsDirectories in interface FileFilter

Returns:

true if directories are accepted by this filter

getDescription

public java.lang.String getDescription()

Get a short description for this filter.

Specified by:

getDescription in interface FileFilter

Returns:

a short description of this filter

ensureExtension

public java.lang.String ensureExtension(java.lang.String path)

Ensure that a pathname ends with one of the extensions accepted by this filter. If it does not, one is appended

Parameters:

path - The path to be checked.

Returns:

the original path if it already ended with a valid extension, or if it was null or empty; otherwise, a copy of the path is returned, with a valid extension added on.

ensureExtension

public java.io.File ensureExtension(java.io.File file)

Ensure that a filename ends with one of the extensions accepted by this filter. If it does not, one is appended

Parameters:

file - The file to be checked.

Returns:

the original file if it already ended with a valid extension, or if it was null or empty; otherwise, a new file is returned, whose path is a copy of the original, with a valid extension added on.