Module org.jfree.chart

Package org.jfree.data.gantt

Class Task

java.lang.Object

org.jfree.data.gantt.Task

All Implemented Interfaces:

Serializable, Cloneable, PublicCloneable

public class Task
extends Object
implements Cloneable, PublicCloneable, Serializable

A simple representation of a task. The task has a description and a duration. You can add sub-tasks to the task.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Task(String description, Date start, Date end)	Creates a new task.
Task(String description, TimePeriod duration)	Creates a new task.

Method Summary

Modifier and Type	Method	Description
void	addSubtask(Task subtask)	Adds a sub-task to the task.
Object	clone()	Returns a clone of the task.
boolean	equals(Object object)	Tests this object for equality with an arbitrary object.
String	getDescription()	Returns the task description.
TimePeriod	getDuration()	Returns the duration (actual or estimated) of the task.
Double	getPercentComplete()	Returns the percentage complete for this task.
Task	getSubtask(int index)	Returns a sub-task.
int	getSubtaskCount()	Returns the sub-task count.
int	hashCode()
void	removeSubtask(Task subtask)	Removes a sub-task from the task.
void	setDescription(String description)	Sets the task description.
void	setDuration(TimePeriod duration)	Sets the task duration (actual or estimated).
void	setPercentComplete(double percent)	Sets the percentage complete for the task.
void	setPercentComplete(Double percent)	Sets the percentage complete for the task.

Methods inherited from class java.lang.Object

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

Constructor Detail

Task

public Task(String description,
            TimePeriod duration)

Creates a new task.

Parameters:

description - the task description (null not permitted).

duration - the task duration (null permitted).

Task

public Task(String description,
            Date start,
            Date end)

Creates a new task.

Parameters:

description - the task description (null not permitted).

start - the start date (null not permitted).

end - the end date (null not permitted).

Method Detail

getDescription

public String getDescription()

Returns the task description.

Returns:

The task description (never null).

setDescription

public void setDescription(String description)

Sets the task description.

Parameters:

description - the description (null not permitted).

getDuration

public TimePeriod getDuration()

Returns the duration (actual or estimated) of the task.

Returns:

The task duration (possibly null).

setDuration

public void setDuration(TimePeriod duration)

Sets the task duration (actual or estimated).

Parameters:

duration - the duration (null permitted).

getPercentComplete

public Double getPercentComplete()

Returns the percentage complete for this task.

Returns:

The percentage complete (possibly null).

setPercentComplete

public void setPercentComplete(Double percent)

Sets the percentage complete for the task.

Parameters:

percent - the percentage (null permitted).

setPercentComplete

public void setPercentComplete(double percent)

Sets the percentage complete for the task.

Parameters:

percent - the percentage.

addSubtask

public void addSubtask(Task subtask)

Adds a sub-task to the task.

Parameters:

subtask - the subtask (null not permitted).

removeSubtask

public void removeSubtask(Task subtask)

Removes a sub-task from the task.

Parameters:

subtask - the subtask.

getSubtaskCount

public int getSubtaskCount()

Returns the sub-task count.

Returns:

The sub-task count.

getSubtask

public Task getSubtask(int index)

Returns a sub-task.

Parameters:

index - the index.

Returns:

The sub-task.

equals

public boolean equals(Object object)

Tests this object for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

object - the other object (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of the task.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - never thrown by this class, but subclasses may not support cloning.