Package org.jfree.data

Class XYDataItem

java.lang.Object
org.jfree.data.XYDataItem
All Implemented Interfaces:
Serializable, Cloneable, Comparable
Direct Known Subclasses:
XYDataPair
public class XYDataItem
extends Object
implements Cloneable, Comparable, Serializable
Represents one (x, y) data item for an XYSeries.
See Also:
Serialized Form

  • Constructor Details

    • XYDataItem

      public XYDataItem​(Number x, Number y)
      Constructs a new data item.
      Parameters:
      x - the x-value (null NOT permitted).
      y - the y-value (null permitted).

    • XYDataItem

      public XYDataItem​(double x, double y)
      Constructs a new data pair.
      Parameters:
      x - the x-value.
      y - the y-value.

  • Method Details

    • getX

      public Number getX()
      Returns the x-value.
      Returns:
      the x-value (never null).

    • getY

      public Number getY()
      Returns the y-value.
      Returns:
      the y-value (possibly null).

    • setY

      public void setY​(Number y)
      Sets the y-value for this data pair.

      Note that there is no corresponding method to change the x-value.

      Parameters:
      y - the new y-value (null permitted).

    • compareTo

      public int compareTo​(Object o1)
      Returns an integer indicating the order of this object relative to another object.

      For the order we consider only the x-value: negative == "less-than", zero == "equal", positive == "greater-than".

      Specified by:
      compareTo in interface Comparable
      Parameters:
      o1 - the object being compared to.
      Returns:
      an integer indicating the order of this data pair object relative to another object.

    • clone

      public Object clone() throws CloneNotSupportedException
      Returns a clone of this object.
      Returns:
      a clone.
      Throws:
      CloneNotSupportedException - not thrown by this class, but subclasses may differ.

    • equals

      public boolean equals​(Object o)
      Tests if this object is equal to another.
      Overrides:
      equals in class Object
      Parameters:
      o - the object to test against for equality (null permitted).
      Returns:
      A boolean.

    • hashCode

      public int hashCode()
      Returns a hash code.
      Overrides:
      hashCode in class Object
      Returns:
      a hash code.