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Java Source Code / Java Documentation » IDE Eclipse » jface » org.eclipse.jface.viewers

Source Cross Reference Class Diagram Java Document (Java Doc)

org.eclipse.jface.viewers .ITreePathContentProvider

All known Subclasses:   org.eclipse.jface.internal.databinding.provisional.viewers .UnorderedTreeContentProvider,
ITreePathContentProvider
public interface ITreePathContentProvider extends IStructuredContentProvider(Code)
An interface to content providers for tree-structure-oriented viewers that provides content based on the path of elements in the tree viewer..
See Also:   AbstractTreeViewer
since:
   3.2

Method Summary
public Object[] getChildren(TreePath parentPath)
     Returns the child elements of the last element in the given path. Implementors may want to use the additional context of the complete path of a parent element in order to decide which children to return.
The provided path is relative to the input.
public TreePath[] getParents(Object element)
     Return the possible parent paths for the given element.
public boolean hasChildren(TreePath path)
     Returns whether the last element of the given path has children.
Intended as an optimization for when the viewer does not need the actual children.

Method Detail
getChildren
public Object[] getChildren(TreePath parentPath)(Code)
Returns the child elements of the last element in the given path. Implementors may want to use the additional context of the complete path of a parent element in order to decide which children to return.
The provided path is relative to the input. The root elements must be obtained by calling IStructuredContentProvider.getElements(Object) .
The result is not modified by the viewer.
Parameters:
  parentPath - the path of the parent element an array of child elements

getParents
public TreePath[] getParents(Object element)(Code)
Return the possible parent paths for the given element. An empty array can be returned if the paths cannot be computed. If the element is a potential child of the input of the viewer, an empty tree path should be an entry in the returned array.
Parameters:
  element - the element the possible parent paths for the given element

hasChildren
public boolean hasChildren(TreePath path)(Code)
Returns whether the last element of the given path has children.
Intended as an optimization for when the viewer does not need the actual children. Clients may be able to implement this more efficiently than getChildren.

Parameters:
  path - the path true if the lat element of the path has children,and false if it has no children

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