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java.lang.Objectorg.jfree.data.general.AbstractDataset
org.jfree.data.general.DefaultValueDataset
public class DefaultValueDataset
A dataset that stores a single value (that is possibly null).
This class provides a default implementation of the ValueDataset
interface.
| Constructor Summary | |
|---|---|
DefaultValueDataset()
Constructs a new dataset, initially empty. |
|
DefaultValueDataset(double value)
Creates a new dataset with the specified value. |
|
DefaultValueDataset(java.lang.Number value)
Creates a new dataset with the specified value. |
|
| Method Summary | |
|---|---|
boolean |
equals(java.lang.Object obj)
Tests this dataset for equality with an arbitrary object. |
java.lang.Number |
getValue()
Returns the value. |
int |
hashCode()
Returns a hash code. |
void |
setValue(java.lang.Number value)
Sets the value and sends a DatasetChangeEvent to all registered
listeners. |
| Methods inherited from class org.jfree.data.general.AbstractDataset |
|---|
addChangeListener, clone, fireDatasetChanged, getGroup, hasListener, notifyListeners, removeChangeListener, setGroup, validateObject |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Methods inherited from interface org.jfree.data.general.Dataset |
|---|
addChangeListener, getGroup, removeChangeListener, setGroup |
| Methods inherited from interface org.jfree.util.PublicCloneable |
|---|
clone |
| Constructor Detail |
|---|
public DefaultValueDataset()
public DefaultValueDataset(double value)
value - the value.public DefaultValueDataset(java.lang.Number value)
value - the initial value (null permitted).| Method Detail |
|---|
public java.lang.Number getValue()
getValue in interface Valuenull).public void setValue(java.lang.Number value)
DatasetChangeEvent to all registered
listeners.
value - the new value (null permitted).public boolean equals(java.lang.Object obj)
equals in class java.lang.Objectobj - the object (null permitted).
public int hashCode()
hashCode in class java.lang.Object
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