Package org.jfree.data.xy

Class XYDataItem

java.lang.Object
org.jfree.data.xy.XYDataItem
All Implemented Interfaces:
Serializable, Cloneable, Comparable
public class XYDataItem
extends Object
implements Cloneable, Comparable, Serializable
Represents one (x, y) data item for an XYSeries. Note that subclasses are REQUIRED to support cloning.
See Also:
Serialized Form

  • Constructor Summary

    Constructors
    Constructor Description
    XYDataItem​(double x, double y)
    Constructs a new data item.
    XYDataItem​(Number x, Number y)
    Constructs a new data item.

  • Method Summary

    Modifier and Type Method Description
    Object clone()
    Returns a clone of this object.
    int compareTo​(Object o1)
    Returns an integer indicating the order of this object relative to another object.
    boolean equals​(Object obj)
    Tests if this object is equal to another.
    Number getX()
    Returns the x-value.
    double getXValue()
    Returns the x-value as a double primitive.
    Number getY()
    Returns the y-value.
    double getYValue()
    Returns the y-value as a double primitive.
    int hashCode()
    Returns a hash code.
    void setY​(double y)
    Sets the y-value for this data item.
    void setY​(Number y)
    Sets the y-value for this data item.
    String toString()
    Returns a string representing this instance, primarily for debugging use.

    Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • 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 item.
      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).

    • getXValue

      public double getXValue()
      Returns the x-value as a double primitive.
      Returns:
      The x-value.
      See Also:
      getX(), getYValue()

    • getY

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

    • getYValue

      public double getYValue()
      Returns the y-value as a double primitive.
      Returns:
      The y-value.
      See Also:
      getY(), getXValue()

    • setY

      public void setY​(double y)
      Sets the y-value for this data item. Note that there is no corresponding method to change the x-value.
      Parameters:
      y - the new y-value.

    • setY

      public void setY​(Number y)
      Sets the y-value for this data item. 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()
      Returns a clone of this object.
      Overrides:
      clone in class Object
      Returns:
      A clone.

    • equals

      public boolean equals​(Object obj)
      Tests if this object is equal to another.
      Overrides:
      equals in class Object
      Parameters:
      obj - 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.

    • toString

      public String toString()
      Returns a string representing this instance, primarily for debugging use.
      Overrides:
      toString in class Object
      Returns:
      A string.