Package org.jfree.data
Class ComparableObjectItem
- java.lang.Object
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- org.jfree.data.ComparableObjectItem
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- All Implemented Interfaces:
Serializable
,Cloneable
,Comparable
- Direct Known Subclasses:
OHLCItem
,VectorDataItem
,XIntervalDataItem
,XYIntervalDataItem
,YIntervalDataItem
public class ComparableObjectItem extends Object implements Cloneable, Comparable, Serializable
Represents one (Comparable, Object) data item for use in aComparableObjectSeries
.- Since:
- 1.0.3
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ComparableObjectItem(Comparable x, Object y)
Constructs a new data item.
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Method Summary
All Methods Instance Methods Concrete Methods 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.protected Comparable
getComparable()
Returns the x-value.protected Object
getObject()
Returns the y-value.int
hashCode()
Returns a hash code.protected void
setObject(Object y)
Sets the y-value for this data item.
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Constructor Detail
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ComparableObjectItem
public ComparableObjectItem(Comparable x, Object y)
Constructs a new data item.- Parameters:
x
- the x-value (null
NOT permitted).y
- the y-value (null
permitted).
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Method Detail
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getComparable
protected Comparable getComparable()
Returns the x-value.- Returns:
- The x-value (never
null
).
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getObject
protected Object getObject()
Returns the y-value.- Returns:
- The y-value (possibly
null
).
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setObject
protected void setObject(Object 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).
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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 interfaceComparable
- Parameters:
o1
- the object being compared to.- Returns:
- An integer indicating the order of this data pair object relative to another object.
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clone
public Object clone() throws CloneNotSupportedException
Returns a clone of this object.- Overrides:
clone
in classObject
- Returns:
- A clone.
- Throws:
CloneNotSupportedException
- not thrown by this class, but subclasses may differ.
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equals
public boolean equals(Object obj)
Tests if this object is equal to another.
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