Package org.apache.commons.io.filefilter

Class CanWriteFileFilter

  • All Implemented Interfaces:
    FileFilter, FilenameFilter, Serializable, IOFileFilter
    public class CanWriteFileFilter
extends AbstractFileFilter
implements Serializable
    This filter accepts Files that can be written to.

    Example, showing how to print out a list of the current directory's writable files: 

     File dir = new File(".");
 String[] files = dir.list( CanWriteFileFilter.CAN_WRITE );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }

    Example, showing how to print out a list of the current directory's un-writable files: 

     File dir = new File(".");
 String[] files = dir.list( CanWriteFileFilter.CANNOT_WRITE );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }

    N.B. For read-only files, use CanReadFileFilter.READ_ONLY.

    Since:
    1.3
    See Also:
    Serialized Form

    • Field Detail

      • CAN_WRITE

        public static final IOFileFilter CAN_WRITE
        Singleton instance of writable filter

      • CANNOT_WRITE

        public static final IOFileFilter CANNOT_WRITE
        Singleton instance of not writable filter

    • Method Detail

      • accept

        public boolean accept​(File file)
        Checks to see if the file can be written to.
        Specified by:
        accept in interface FileFilter
        Specified by:
        accept in interface IOFileFilter
        Overrides:
        accept in class AbstractFileFilter
        Parameters:
        file - the File to check
        Returns:
        true if the file can be written to, otherwise false.