org.sejda.model.task

Interface Task<T extends TaskParameters>

Type Parameters:

T - parameters type to be executed

All Known Implementing Classes:

BaseTask

public interface Task<T extends TaskParameters>

Interface to defines the task lifecycle. Generically defines the TaskParameters subclass used to parameterize the task execution. Implementing classes must define a public no-args constructor that will be reflectively invoked when the Task is executed.

Author:

Andrea Vacondio

Method Summary

Modifier and Type	Method and Description
void	after() Called after the task is executed, can be used to close resources.
void	before(T parameters, TaskExecutionContext context) Called before the actual execution of the task.
void	execute(T parameters) Executes the task with the input parameters

Method Detail

before

void before(T parameters,
            TaskExecutionContext context)
     throws TaskException

Called before the actual execution of the task. Can be used to perform additional validation or initialization and to deny the execution in case some requirements are not met throwing a TaskException.

Parameters:

parameters - the parameters to be executed

context -

Throws:

TaskException - in case of unexpected errors

execute

void execute(T parameters)
      throws TaskException

Executes the task with the input parameters

Parameters:

parameters -

Throws:

TaskException

after

void after()

Called after the task is executed, can be used to close resources. This method is called in a finally block therefore it's always called even when the task execution throws an exception.