package schedframe.scheduling.plugin.grid;


/**
 * This interface provides performance estimations that can be used in scheduling
 *  
 * @author Ariel
 *
 */
public interface Prediction {

	/**
	 * Predicts runtime of a given task at specific resource
	 * @param td Description of a task
	 * @param rd Description of resources
	 * @param resourceId id of resource
	 * @return prediction of a task runtime for a given task and resource description
	 */
//	public PredictionValue getRunTime(TaskDescription td, ResourceDescription rd, String resourceId);

	/**
	 * Predicts runtime of a given task
	 * @param td Description of a task
	 * @return prediction of a task runtime for a given task
	 */
//	public PredictionValue getRunTime(TaskDescription td);
	
	/**
	 * Predicts queue wait time of a given task at specific resource
	 * @param td Description of a task
	 * @param rd Description of resources
	 * @param resourceId id of resource
	 * @return prediction of a task waiting time for a given task and resource description
	 */
//	public PredictionValue getWaitTime(TaskDescription td, ResourceDescription rd, String resourceId);
	
	/**
	 * Predicts a given parameter of a given task
	 * @return prediction for a given parameter and task description 
	 */
//	public PredictionValue getPrediction(String paramName, TaskDescription td);

	/**
	 * Predicts runtimes of given tasks at specific resources
	 * @param td Description of a task
	 * @param rd Description of resources
	 * @param resourceIds identifiers of resources
	 * @return predictions for a given task; returned array contains predictions for requested resources 
	 */
//	public PredictionValue[] getRunTime(TaskDescription td, ResourceDescription rd, String[] resourceIds);

}