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:

  • 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:

    • 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:

    • 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.