Package org.jdesktop.swingx.treetable

Class FileSystemModel

java.lang.Object
org.jdesktop.swingx.treetable.AbstractTreeTableModel
org.jdesktop.swingx.treetable.FileSystemModel
All Implemented Interfaces:
TreeModel, TreeTableModel
public class FileSystemModel extends AbstractTreeTableModel
A tree table model to simulate a file system.

This tree table model implementation extends AbstractTreeTableModel. The file system metaphor demonstrates that it is often easier to directly implement tree structures directly instead of using intermediaries, such as TreeTableNode.

A comparison of this class with SimpleFileSystemModel, shows that extending AbstractTreeTableModel is often easier than creating a model from scratch.

A "full" version of this model might allow editing of file names, the deletion of files, and the movement of files. This simple implementation does not intend to tackle such problems, but this implementation may be extended to handle such details.

Author:
Ramesh Gupta, Karl Schaefer

  • Constructor Details

    • FileSystemModel

      public FileSystemModel()
      Creates a file system model using the root directory as the model root.

    • FileSystemModel

      public FileSystemModel(File root)
      Creates a file system model using the specified root.
      Parameters:
      root - the root for this model; this may be different than the root directory for a file system.

  • Method Details

    • getChild

      public File getChild(Object parent, int index)

    • getChildCount

      public int getChildCount(Object parent)

    • getColumnClass

      public Class<?> getColumnClass(int column)
      Returns the most specific superclass for all the cell values in the column. This is used by the JXTreeTable to set up a default renderer and editor for the column.
      Specified by:
      getColumnClass in interface TreeTableModel
      Overrides:
      getColumnClass in class AbstractTreeTableModel
      Parameters:
      column - the index of the column
      Returns:
      the common ancestor class of the object values in the model.
      See Also:

    • getColumnCount

      public int getColumnCount()
      Description copied from interface: TreeTableModel
      Returns the number of columns in the model. A JXTreeTable uses this method to determine how many columns it should create and display by default.
      Returns:
      the number of columns in the model
      See Also:

    • getColumnName

      public String getColumnName(int column)
      Description copied from class: AbstractTreeTableModel
      Returns the name of the column at columnIndex. This is used to initialize the table's column header name. Note: this name does not need to be unique; two columns in a table can have the same name.
      Specified by:
      getColumnName in interface TreeTableModel
      Overrides:
      getColumnName in class AbstractTreeTableModel
      Parameters:
      column - the index of the column
      Returns:
      the name of the column
      See Also:

    • getValueAt

      public Object getValueAt(Object node, int column)
      Description copied from interface: TreeTableModel
      Returns the value for the node at columnIndex. The node must be managed by this model. Unamanaged nodes should throw an IllegalArgumentException.
      Parameters:
      node - the node whose value is to be queried
      column - the column whose value is to be queried
      Returns:
      the value Object at the specified cell
      See Also:

    • getIndexOfChild

      public int getIndexOfChild(Object parent, Object child)

    • getRoot

      public File getRoot()
      Specified by:
      getRoot in interface TreeModel
      Overrides:
      getRoot in class AbstractTreeTableModel

    • setRoot

      public void setRoot(File root)
      Sets the root for this tree table model. This method will notify listeners that a change has taken place.
      Parameters:
      root - the new root node to set

    • isLeaf

      public boolean isLeaf(Object node)
      Returns true if node is a leaf.
      Specified by:
      isLeaf in interface TreeModel
      Overrides:
      isLeaf in class AbstractTreeTableModel
      Parameters:
      node - a node in the tree, obtained from this data source
      Returns:
      true if node is a leaf