Package org.jfree.data

Class DefaultValueDataset

java.lang.Object

org.jfree.data.AbstractDataset

org.jfree.data.DefaultValueDataset

All Implemented Interfaces:

ObjectInputValidation, Serializable, Cloneable, Dataset, Value, ValueDataset

public class DefaultValueDataset
extends AbstractDataset
implements ValueDataset, Cloneable, Serializable

A default implementation of the ValueDataset interface.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
DefaultValueDataset()	Constructs a new dataset, initially empty.
DefaultValueDataset(double value)	Creates a new dataset.
DefaultValueDataset(Number value)	Creates a new dataset.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Tests this dataset for equality with an arbitrary object.
Number	getValue()	Returns the value.
int	hashCode()	Returns a hash code.
void	setValue(Number value)	Sets the value.

Methods inherited from class org.jfree.data.AbstractDataset

addChangeListener, clone, getGroup, removeChangeListener, setGroup, validateObject

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jfree.data.Dataset

addChangeListener, getGroup, removeChangeListener, setGroup

Constructor Details

DefaultValueDataset

public DefaultValueDataset()

Constructs a new dataset, initially empty.

DefaultValueDataset

public DefaultValueDataset(double value)

Creates a new dataset.

Parameters:

value - the value.

DefaultValueDataset

public DefaultValueDataset(Number value)

Creates a new dataset.

Parameters:

value - the initial value.

Method Details

getValue

public Number getValue()

Returns the value.

Specified by:

getValue in interface Value

Returns:

the value.

setValue

public void setValue(Number value)

Sets the value. A DatasetChangeEvent is sent to all registered listeners.

Parameters:

value - the new value.

equals

public boolean equals(Object obj)

Tests this dataset for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

obj - the object.

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code.

Overrides:

hashCode in class Object

Returns:

a hash code.