Package org.jfree.data

Interface Values

All Known Subinterfaces:
KeyedValues<K>, KeyedValuesDataset, PieDataset<K>
All Known Implementing Classes:
CategoryToPieDataset, DefaultKeyedValues, DefaultKeyedValuesDataset, DefaultPieDataset, JDBCPieDataset
public interface Values
An interface through which (single-dimension) data values can be accessed.

  • Method Summary

    Modifier and Type Method Description
    int getItemCount()
    Returns the number of items (values) in the collection.
    Number getValue​(int index)
    Returns the value with the specified index.

  • Method Details

    • getItemCount

      int getItemCount()
      Returns the number of items (values) in the collection.
      Returns:
      The item count (possibly zero).

    • getValue

      Number getValue​(int index)
      Returns the value with the specified index.
      Parameters:
      index - the item index (in the range 0 to getItemCount() -1).
      Returns:
      The value (possibly null).
      Throws:
      IndexOutOfBoundsException - if index is not in the specified range.