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package com.talanlabs.taskmanager.engine.manager;

import com.talanlabs.taskmanager.engine.graph.IStatusGraph;
import com.talanlabs.taskmanager.engine.task.IStatusTask;
import com.talanlabs.taskmanager.model.ITaskObject;

import java.util.List;

public interface ITaskObjectManager {

    /**
     * Get a class of taskObject
     *
     * @return a class
     */
    Class getTaskObjectClass();

    /**
     * Get a initial status for task object
     *
     * @param taskObject a task object
     * @return a current status for task object
     */
    E getInitialStatus(F taskObject);

    /**
     * Get next status graphs for task object and current status
     * 
     * Ex : A->(B,C) currentStatus is A then next is B and C
     *
     * @param statusTask
     * @param currentStatus a current status
     * @return a graph for next status
     */
    List> getNextStatusGraphsByTaskObjectType(IStatusTask statusTask, E currentStatus);

    /**
     * Get a rule with task definition between status for sub tasks
     * 
     * ex : A=>(B,C)
     *
     * @param statusTask
     * @param currentStatus current status
     * @param nextStatus    next status
     * @return a rule
     */
    String getTaskChainCriteria(IStatusTask statusTask, E currentStatus, E nextStatus);

}