# Package-level declarations

Classes for managing and monitoring build execution.

## Types

TaskActionListener
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interface TaskActionListener
A `TaskActionListener` is notified of the actions that a task performs.
TaskExecutionAdapter
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open class TaskExecutionAdapter : TaskExecutionListener
A TaskExecutionListener adapter class for receiving task execution events.
TaskExecutionGraph
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interface TaskExecutionGraph
A `TaskExecutionGraph` is responsible for managing the execution of the Task instances which are part of the build.
TaskExecutionGraphListener
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interface TaskExecutionGraphListener
A `TaskExecutionGraphListener` is notified when the TaskExecutionGraph has been populated.
TaskExecutionListener
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interface TaskExecutionListener
A `TaskExecutionListener` is notified of the execution of the tasks in a build.