Class FileTreeModel

java.lang.Object
com.codename1.components.FileTreeModel
All Implemented Interfaces:
TreeModel
public class FileTreeModel extends java.lang.Object implements TreeModel
A tree model representing the file system as a whole, notice that this class returns absolute file names which would result in an unreadable tree. To fix this you can create a Tree object and override functionality such as the childToDisplayLabel method like this: Tree fileTree = new Tree(new FileTreeModel(true)) { protected String childToDisplayLabel(Object child) { if (((String) child).endsWith("/")) { return ((String) child).substring(((String) child).lastIndexOf('/', ((String) child).length() - 2)); } return ((String) child).substring(((String) child).lastIndexOf('/')); } };

  • Constructor Summary

    Constructors
    Constructor
    Description
    FileTreeModel(boolean showFiles)
    Construct a filesystem tree model

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addExtensionFilter(String extension)
    Shows only files with the given extension
    Vector
    getChildren(java.lang.Object parent)
    Returns the child objects representing the given parent, null should return the root objects
    boolean
    isLeaf(java.lang.Object node)
    Is the node a leaf or a folder

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • FileTreeModel

      public FileTreeModel(boolean showFiles)

      Construct a filesystem tree model

      Parameters
      • showFiles: indicates whether this is a directory only view or a whole filesystem view

  • Method Details

    • addExtensionFilter

      public void addExtensionFilter(String extension)

      Shows only files with the given extension

      Parameters
      • extension: the file extension to display

    • getChildren

      public Vector getChildren(java.lang.Object parent)

      Returns the child objects representing the given parent, null should return the root objects

      Parameters
      • parent: @param parent the parent object whose children should be returned, null would return the tree roots
      Returns

      the children of the given node within the tree

      Specified by:
      getChildren in interface TreeModel

    • isLeaf

      public boolean isLeaf(java.lang.Object node)

      Is the node a leaf or a folder

      Parameters
      • node: a node within the tree
      Returns

      true if the node is a leaf that can't be expanded

      Specified by:
      isLeaf in interface TreeModel