Provides low-level access to various file systems. This class provides acces to only the iDEN file system. To access
file systems such as the device store or SDCard use the javax.microedition.io.file classes.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Method Detail
delete
public static void delete(int fs,
String fileName)
throws IOException
Deletes the specified file.
Parameters:
fs - One of the FILESYSTEM_ values.
fileName - The name of the file.
Throws:
IOException - if a file with the specified name does not exist
on the specified filesystem.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Finds the first file that matches the specified pattern.
Parameters:
fs - One of the FILESYSTEM_ values.
pattern - A pattern to search within file names.
This pattern can include wildcard characters (*).
Returns:
The file name of the first file that matches the pattern specified,
or null if no file matches.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Finds the first file that matches the specified pattern.
Parameters:
fs - One of the FILESYSTEM_ values.
pattern - A pattern to search within file names.
This pattern can include wildcard characters (*).
fileInfo - A FileInfo instance to receive the file information.
Returns:
True if a file was found that matches the pattern specifed; false otherwise.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Finds the next file that matches the specified pattern.
Parameters:
fs - One of the FILESYSTEM_ values.
Returns:
The next file that matches the pattern specified in a previous call to
findFirst, or null if there are no more matches.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
findNext
public static boolean findNext(int fs,
FileInfo fileInfo)
throws IOException
Finds the next file that matches the specified pattern.
Parameters:
fs - One of the FILESYSTEM_ values.
fileInfo - A FileInfo instance to receive the file information.
Returns:
True if a file was found matching the pattern specifed; false otherwise.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
getFileSize
public static long getFileSize(int fs,
String fileName)
throws IOException
Retrieves the size of the specified file.
Note: Calling this method resets
any findFirst or findNext query in progress.
Parameters:
fs - One of the FILESYSTEM_ values.
fileName - The name of the file.
Returns:
The size of the file in bytes.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
getFileSystemFreeSpace
public static long getFileSystemFreeSpace(int fs)
throws IOException
Retrieves the free space for the specified file system.
Parameters:
fs - One of the FILESYSTEM_ values.
Returns:
The number of available bytes in the file system.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
getFileSystemTotalSpace
public static long getFileSystemTotalSpace(int fs)
throws IOException
Retrieves the total size for the specified file system.
Parameters:
fs - One of the FILESYSTEM_ values.
Returns:
The total number of bytes in the file system.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
isFileSystemSupported
public static final boolean isFileSystemSupported(int fs)
Determines if this device supports the specified file system.
Parameters:
fs - One of the FILESYSTEM_ values.
Returns:
True if this device provides access to the specified file system.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
isSupported
public static final boolean isSupported()
Determines if this device supports one or more file systems.
Returns:
True if this device provides access to one or more file systems.
Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
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