Client API. The Codename One framework your app is built on: this runs on the device, not in a backend.

public class ProjectModel

Object
ProjectModel

A project: a tree of tasks, the links between them, the resources they use and the calendar their durations are measured in.

Building or editing a project is two steps. The methods that change it (addTask, link, a setter on a task) only change it; update then schedules the whole project and tells the listeners, so a hundred edits cost one pass:

ProjectModel p = new ProjectModel();
GanttTask design = new GanttTask("design", "Design", 3 * p.getCalendar().getMillisPerDay());
GanttTask build = new GanttTask("build", "Build", 5 * p.getCalendar().getMillisPerDay());
p.addTask(design).addTask(build);
p.link(design, build);
p.update();

Constructors

`public ProjectModel()`	A project that starts today, on the default working week.
`public ProjectModel(WorkCalendar calendar, long start)`

Methods

`public` `WorkCalendar getCalendar()`
`public` `ProjectModel setCalendar(WorkCalendar v)`
`public long getStart()`	The earliest any task is scheduled.
`public` `ProjectModel setStart(long millis)`
`public long getFinish()`	When the last task finishes, from the last scheduling pass.
`public long getCriticalSlack()`	A task with this much total slack or less is critical.
`public` `ProjectModel setCriticalSlack(long millis)`
`public` `ProjectModel addTask(GanttTask task)`	Adds a top level task.
`public` `ProjectModel addTask(GanttTask parent, GanttTask task)`	Adds a task under `parent`, which becomes a summary.
`public` `ProjectModel addTask(GanttTask parent, int index, GanttTask task)`	Adds a task at a position among `parent`’s children; -1 is the end, and a null parent is the top level.
`public boolean contains(GanttTask task)`	Whether a task is in this project’s tree.
`public boolean moveTask(GanttTask task, GanttTask newParent, int index)`	Moves a task, with everything under it, to another place in the tree.
`public` `ProjectModel removeTask(GanttTask task)`	Removes a task, everything under it, and every link to any of them.
`public` `List<GanttTask> getRootTasks()`
`public` `List<GanttTask> getTasks()`	Every task, a parent before its children, in the order of the outline.
`public` `GanttTask getTask(String id)`
`public` `TaskDependency link(GanttTask predecessor, GanttTask successor)`	Links two tasks finish to start.
`public` `TaskDependency link(GanttTask predecessor, GanttTask successor, TaskDependency.Type type, long lag)`	Links two tasks.
`public boolean canLink(GanttTask predecessor, GanttTask successor)`	Whether a link from `predecessor` to `successor` is possible: they are two tasks of this project, neither is inside the other, they are not linked already, and the link would not close a loop.
`public` `ProjectModel unlink(TaskDependency d)`
`public` `List<TaskDependency> getDependencies()`
`public` `TaskDependency getDependency(GanttTask predecessor, GanttTask successor)`	The link from one task to another, or null.
`public` `List<TaskDependency> getPredecessors(GanttTask task)`	The links that end at `task`.
`public` `List<TaskDependency> getSuccessors(GanttTask task)`	The links that start at `task`.
`public` `ProjectModel addResource(ScheduleResource r)`
`public` `ProjectModel removeResource(ScheduleResource r)`
`public` `List<ScheduleResource> getResources()`
`public` `ScheduleResource getResource(String id)`
`public` `ProjectModel captureBaseline()`	Records every task’s current dates as its baseline.
`public` `ProjectModel clearLeveling()`	Removes every leveling delay.
`public void update()`	Schedules the project and tells the listeners.
`public void addChangeListener(ProjectChangeListener l)`
`public void removeChangeListener(ProjectChangeListener l)`
`public void fireChanged()`	Tells the listeners without scheduling, for a change that moves no date, such as a name.

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone, finalize

Constructor details

ProjectModel

public ProjectModel()

A project that starts today, on the default working week.

ProjectModel

public ProjectModel(WorkCalendar calendar, long start)

Method details

getCalendar

public WorkCalendar getCalendar()

setCalendar

public ProjectModel setCalendar(WorkCalendar v)

getStart

public long getStart()

The earliest any task is scheduled.

setStart

public ProjectModel setStart(long millis)

getFinish

public long getFinish()

When the last task finishes, from the last scheduling pass.

getCriticalSlack

public long getCriticalSlack()

A task with this much total slack or less is critical. Zero by default; a day makes the tasks that are nearly critical stand out too.

setCriticalSlack

public ProjectModel setCriticalSlack(long millis)

addTask

public ProjectModel addTask(GanttTask task)

Adds a top level task.

addTask

public ProjectModel addTask(GanttTask parent, GanttTask task)

Adds a task under parent, which becomes a summary.

addTask

public ProjectModel addTask(GanttTask parent, int index, GanttTask task)

Adds a task at a position among parent’s children; -1 is the end, and a null parent is the top level. A task that is in the project already is moved. A task belongs to one project: one that is a task of another is to be removed from that project first, with removeTask, which also drops the links that project has to it.

Throws

IllegalArgumentException: when the task would go under itself, when the parent is not in this project, or when its links would then run in a loop through the summary

contains

public boolean contains(GanttTask task)

Whether a task is in this project’s tree.

moveTask

public boolean moveTask(GanttTask task, GanttTask newParent, int index)

Moves a task, with everything under it, to another place in the tree.

Returns

false when the move would put the task under itself, under a task that is not in this project, or would close a loop of links through a summary

removeTask

public ProjectModel removeTask(GanttTask task)

Removes a task, everything under it, and every link to any of them.

getRootTasks

public List<GanttTask> getRootTasks()

getTasks

public List<GanttTask> getTasks()

Every task, a parent before its children, in the order of the outline.

getTask

public GanttTask getTask(String id)

link

public TaskDependency link(GanttTask predecessor, GanttTask successor)

Links two tasks finish to start.

link

public TaskDependency link(GanttTask predecessor, GanttTask successor, TaskDependency.Type type, long lag)

Links two tasks.

A link whose successor is a summary holds the start of every task under it, whatever its type: a summary’s finish is the result of its children and cannot be held by itself.

Throws

IllegalArgumentException: when canLink says no

canLink

public boolean canLink(GanttTask predecessor, GanttTask successor)

Whether a link from predecessor to successor is possible: they are two tasks of this project, neither is inside the other, they are not linked already, and the link would not close a loop.

unlink

public ProjectModel unlink(TaskDependency d)

getDependencies

public List<TaskDependency> getDependencies()

getDependency

public TaskDependency getDependency(GanttTask predecessor, GanttTask successor)

The link from one task to another, or null.

getPredecessors

public List<TaskDependency> getPredecessors(GanttTask task)

The links that end at task.

getSuccessors

public List<TaskDependency> getSuccessors(GanttTask task)

The links that start at task.

addResource

public ProjectModel addResource(ScheduleResource r)

removeResource

public ProjectModel removeResource(ScheduleResource r)

getResources

public List<ScheduleResource> getResources()

getResource

public ScheduleResource getResource(String id)

captureBaseline

public ProjectModel captureBaseline()

Records every task’s current dates as its baseline.

clearLeveling

public ProjectModel clearLeveling()

Removes every leveling delay. Call update after it.

update

public void update()

Schedules the project and tells the listeners. Call it after a change, or after a group of them.

addChangeListener

public void addChangeListener(ProjectChangeListener l)

removeChangeListener

public void removeChangeListener(ProjectChangeListener l)

fireChanged

public void fireChanged()

Tells the listeners without scheduling, for a change that moves no date, such as a name.