org.jfree.data.general
public class DefaultKeyedValueDataset extends AbstractDataset implements KeyedValueDataset, Serializable
| Constructor Summary | |
|---|---|
| DefaultKeyedValueDataset()
Constructs a new dataset, initially empty. | |
| DefaultKeyedValueDataset(Comparable key, Number value)
Creates a new dataset with the specified initial value.
| |
| DefaultKeyedValueDataset(KeyedValue data)
Creates a new dataset that uses the data from a KeyedValue
instance.
| |
| Method Summary | |
|---|---|
| Object | clone()
Creates a clone of the dataset.
|
| boolean | equals(Object obj)
Tests this dataset for equality with an arbitrary object.
|
| Comparable | getKey()
Returns the key associated with the value, or null if the
dataset has no data item.
|
| Number | getValue()
Returns the value.
|
| int | hashCode()
Returns a hash code.
|
| void | setValue(Comparable key, Number value)
Sets the value for the dataset and sends a DatasetChangeEvent to
all registered listeners.
|
| void | updateValue(Number value)
Updates the value.
|
Parameters: key the key. value the value (null permitted).
Parameters: data the data (null permitted).
Returns: A clone.
Throws: CloneNotSupportedException This class will not throw this exception, but subclasses (if any) might.
Parameters: obj the object (null permitted).
Returns: A boolean.
null if the
dataset has no data item.
Returns: The key.
Returns: The value (possibly null).
Returns: A hash code.
Parameters: key the key. value the value (null permitted).
Parameters: value the new value (null permitted).