Package com.iizigo.navigator

Class ViewerComparator

  • All Implemented Interfaces:
    IViewerComparator
    public class ViewerComparator
extends org.eclipse.jface.viewers.ViewerSorter
implements IViewerComparator
    Class to sort nodes in a CommonViewerEx.
    Author:
    Christopher Mindus

    • Field Summary

      • Fields inherited from class org.eclipse.jface.viewers.ViewerSorter

        collator

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and TypeMethodDescription
      intcategory​(java.lang.Object element)
      Returns the category of the given element.
      intcompare​(org.eclipse.jface.viewers.Viewer viewer, java.lang.Object e1, java.lang.Object e2)
      Returns a negative, zero, or positive number depending on whether the first element is less than, equal to, or greater than the second element.
      booleangetReverseSortOrdering()
      Get reverse ordering flag.
      booleangetSortByCategory()
      Gets sorting by category.
      voidsetReverseSortOrdering​(boolean on)
      Sets reverse ordering.
      voidsetSortByCategory​(boolean on)
      Sets sorting by category.

      • Methods inherited from class org.eclipse.jface.viewers.ViewerSorter

        getCollator

      • Methods inherited from class org.eclipse.jface.viewers.ViewerComparator

        getComparator, isSorterProperty, sort

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ViewerComparator

        public ViewerComparator()
        Creates a new ViewerComparator, which uses the default comparator to sort strings.

    • Method Detail

      • setSortByCategory

        public void setSortByCategory​(boolean on)
        Sets sorting by category.

      • getSortByCategory

        public boolean getSortByCategory()
        Gets sorting by category.

      • setReverseSortOrdering

        public void setReverseSortOrdering​(boolean on)
        Sets reverse ordering.

      • getReverseSortOrdering

        public boolean getReverseSortOrdering()
        Get reverse ordering flag.

      • category

        public int category​(java.lang.Object element)
        Returns the category of the given element. The category is a number used to allocate elements to bins; the bins are arranged in ascending numeric order. The elements within a bin are arranged via a second level sort criterion.
        Overrides:
        category in class org.eclipse.jface.viewers.ViewerComparator
        Parameters:
        element - the element.
        Returns:
        the category.

      • compare

        public int compare​(org.eclipse.jface.viewers.Viewer viewer,
                   java.lang.Object e1,
                   java.lang.Object e2)
        Returns a negative, zero, or positive number depending on whether the first element is less than, equal to, or greater than the second element.
        Specified by:
        compare in interface IViewerComparator
        Overrides:
        compare in class org.eclipse.jface.viewers.ViewerComparator
        Parameters:
        viewer - The viewer.
        e1 - The first element
        e2 - The second element.
        Returns:
        a negative number if the first element is less than the second element; the value 0 if the first element is equal to the second element; and a positive number if the first element is greater than the second element.