DiscoverySelector

All Known Implementing Classes:

ClasspathResourceSelector, ClasspathRootSelector, ClassSelector, DeclaredMethodSelector, DirectorySelector, FileSelector, IterationSelector, MethodSelector, ModuleSelector, NestedClassSelector, NestedMethodSelector, PackageSelector, UniqueIdSelector, UriSelector
```
@API(status=STABLE,
     since="1.0")
public interface DiscoverySelector
```
A selector defines what a TestEngine can use to discover tests — for example, the name of a Java class, the path to a file or directory, etc.

Since:

1.0

See Also:

EngineDiscoveryRequest, DiscoverySelectors

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default java.util.Optional<DiscoverySelectorIdentifier>`	`toIdentifier()`	Return the identifier of this selector.

- Method Detail
  - toIdentifier
```
@API(status=MAINTAINED,
     since="1.13.3")
default java.util.Optional<DiscoverySelectorIdentifier> toIdentifier()
```
    Return the identifier of this selector.
    The returned identifier must be parsable by a corresponding DiscoverySelectorIdentifierParser.
    The default implementation returns Optional.empty(). Can be overridden by concrete implementations.
    
    Returns:
    
    an Optional containing the identifier of this selector; never null but potentially empty if the selector does not support identifiers
    
    Since:
    
    1.11