FastLowerBoundTail (EfficientStorage)

All Superinterfaces:: Tail

public interface FastLowerBoundTail
extends Tail

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`computeEstimate(Delegate<? extends Head,? extends Tail> delegate, Head head, int lastEstimate)`	Starts the computation of the exact estimate on the first call.
`int`	`getEstimatedCosts(Delegate<? extends Head,? extends Tail> delegate, Head head)`	get an estimate of the remaining distance to the target state in the search.
`boolean`	`isExactEstimateKnown()`	This method should return true if the exact estimate is known.

Methods inherited from interface nl.tue.astar.Tail
canComplete, getNextTail, getNextTailFromStorage

- Method Detail
  - computeEstimate
```
void computeEstimate(Delegate<? extends Head,? extends Tail> delegate,
                     Head head,
                     int lastEstimate)
```
    Starts the computation of the exact estimate on the first call. The method should not return before the exact estimate is known. The exact estimate should never become lower than the previously computed lowerbound. Every additional call to computeEstimate should be ignored.
    
    Parameters:
    
    d -
    
    head -
  - getEstimatedCosts
```
int getEstimatedCosts(Delegate<? extends Head,? extends Tail> delegate,
                      Head head)
```
    get an estimate of the remaining distance to the target state in the search. This method should return a fast lower bound, until the computeEstimate() method has been called. After that, the exact estimate should be returned
    
    Specified by:
    
    getEstimatedCosts in interface Tail
    
    Returns:
  - isExactEstimateKnown
```
boolean isExactEstimateKnown()
```
    This method should return true if the exact estimate is known. It should return true after the first call to ComputeEstimate, but may return true ealier.
    
    Returns: