Groovy Documentation

org.gradle.api.execution
Interface TaskExecutionGraph


interface TaskExecutionGraph

A TaskExecutionGraph is responsible for managing the execution of the Task instances which are part of the build. The TaskExecutionGraph maintains an execution plan of tasks to be executed (or which have been executed), and you can query this plan from your build file.

You can access the TaskExecutionGraph by calling org.gradle.api.invocation.Gradle#getTaskGraph(). In your build file you can use gradle.taskGraph to access it.

The TaskExecutionGraph is populated only after all the projects in the build have been evaulated. It is empty before then. You can receive a notification when the graph is populated, using #whenReady(groovy.lang.Closure) or #addTaskExecutionGraphListener(TaskExecutionGraphListener).


Method Summary
void addTaskExecutionGraphListener(TaskExecutionGraphListener listener)

Adds a listener to this graph, to be notified when this graph is ready.

void addTaskExecutionListener(TaskExecutionListener listener)

Adds a listener to this graph, to be notified as tasks are executed.

void afterTask(Closure closure)

Adds a closure to be called immediately after a task has executed.

void beforeTask(Closure closure)

Adds a closure to be called immediately before a task is executed.

List getAllTasks()

Returns the tasks which are included in the execution plan.

boolean hasTask(java.lang.String path)

Determines whether the given task is included in the execution plan.

boolean hasTask(Task task)

Determines whether the given task is included in the execution plan.

void removeTaskExecutionGraphListener(TaskExecutionGraphListener listener)

Remove a listener from this graph.

void removeTaskExecutionListener(TaskExecutionListener listener)

Remove a listener from this graph.

void whenReady(Closure closure)

Adds a closure to be called when this graph has been populated.

 

Method Detail

addTaskExecutionGraphListener

public void addTaskExecutionGraphListener(TaskExecutionGraphListener listener)

Adds a listener to this graph, to be notified when this graph is ready.

param:
listener The listener to add. Does nothing if this listener has already been added.


addTaskExecutionListener

public void addTaskExecutionListener(TaskExecutionListener listener)

Adds a listener to this graph, to be notified as tasks are executed.

param:
listener The listener to add. Does nothing if this listener has already been added.


afterTask

public void afterTask(Closure closure)

Adds a closure to be called immediately after a task has executed. The task is passed to the closure as the first parameter. The task execution exception, if any, is passed as the second parameter. Both parameters are optional.

param:
closure The closure to execute when a task has been executed


beforeTask

public void beforeTask(Closure closure)

Adds a closure to be called immediately before a task is executed. The task is passed to the closure as a parameter.

param:
closure The closure to execute when a task is about to be executed.


getAllTasks

public List getAllTasks()

Returns the tasks which are included in the execution plan. The tasks are returned in the order that they will be executed.

return:
The tasks. Returns an empty set if no tasks are to be executed.
throws:
IllegalStateException When this graph has not been populated.


hasTask

public boolean hasTask(java.lang.String path)

Determines whether the given task is included in the execution plan.

param:
path the absolute path of the task.
return:
true if a task with the given path is included in the execution plan.
throws:
IllegalStateException When this graph has not been populated.


hasTask

public boolean hasTask(Task task)

Determines whether the given task is included in the execution plan.

param:
task the task
return:
true if the given task is included in the execution plan.
throws:
IllegalStateException When this graph has not been populated.


removeTaskExecutionGraphListener

public void removeTaskExecutionGraphListener(TaskExecutionGraphListener listener)

Remove a listener from this graph.

param:
listener The listener to remove. Does nothing if this listener was never added to this graph.


removeTaskExecutionListener

public void removeTaskExecutionListener(TaskExecutionListener listener)

Remove a listener from this graph.

param:
listener The listener to remove. Does nothing if this listener was never added to this graph.


whenReady

public void whenReady(Closure closure)

Adds a closure to be called when this graph has been populated. This graph is passed to the closure as a parameter.

param:
closure The closure to execute when this graph has been populated.


 

Groovy Documentation