ScoreDirectorFactoryService (OptaPlanner Javadoc 8.28.0.Final API)

Type Parameters:

Solution_ - the solution type, the class with the PlanningSolution annotation

Score_ - the score type to go with the solution

All Known Implementing Classes:

DrlScoreDirectorFactoryService, EasyScoreDirectorFactoryService, IncrementalScoreDirectorFactoryService
```
public interface ScoreDirectorFactoryService<Solution_,Score_ extends Score<Score_>>
```
All ScoreDirectorFactory implementations must provide an implementation of this interface, as well as an entry in META-INF/services/org.optaplanner.core.impl.score.director.ScoreDirectorFactoryService file. This makes it available for discovery in ScoreDirectorFactoryFactory via ServiceLoader.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`Supplier<AbstractScoreDirectorFactory<Solution_,Score_>>`	`buildScoreDirectorFactory(ClassLoader classLoader, SolutionDescriptor<Solution_> solutionDescriptor, ScoreDirectorFactoryConfig config)`	Returns a `Supplier` which returns new instance of a score director defined by `getSupportedScoreDirectorType()`.
`default int`	`getPriority()`	If multiple services are available for the same config, the one with the higher priority is picked.
`ScoreDirectorType`	`getSupportedScoreDirectorType()`

- Method Detail
  - getPriority
```
default int getPriority()
```
    If multiple services are available for the same config, the one with the higher priority is picked. Used by the CS services to ensure Drools is picked if both Drools and Bavet are available.
    
    Returns:
  - getSupportedScoreDirectorType
```
ScoreDirectorType getSupportedScoreDirectorType()
```
    Returns:
    
    never null, the score director type that is implemented by the factory
  - buildScoreDirectorFactory
```
Supplier<AbstractScoreDirectorFactory<Solution_,Score_>> buildScoreDirectorFactory(ClassLoader classLoader,
                                                                                         SolutionDescriptor<Solution_> solutionDescriptor,
                                                                                         ScoreDirectorFactoryConfig config)
```
    Returns a Supplier which returns new instance of a score director defined by getSupportedScoreDirectorType(). This is done so that the actual factory is only instantiated after all the configuration fail-fasts have been performed.
    
    Parameters:
    
    classLoader -
    
    solutionDescriptor - never null, solution descriptor provided by the solver
    
    config - never null, configuration to use for instantiating the factory
    
    Returns:
    
    null when this type is not configured
    
    Throws:
    
    IllegalStateException - if the configuration has an issue