Package org.eclipse.aether.collection

Interface DependencySelector

All Known Implementing Classes:

AndDependencySelector, ExclusionDependencySelector, OptionalDependencySelector, ScopeDependencySelector, StaticDependencySelector

public interface DependencySelector

Decides what dependencies to include in the dependency graph.

Note: Implementations must be stateless.

Warning: This hook is called from a hot spot and therefore implementations should pay attention to performance. Among others, implementations should provide a semantic equals() method.

See Also:

• RepositorySystemSession.getDependencySelector()
• RepositorySystem.collectDependencies(org.eclipse.aether.RepositorySystemSession, CollectRequest)

Method Summary

Modifier and Type	Method	Description
DependencySelector	deriveChildSelector(DependencyCollectionContext context)	Derives a dependency selector for the specified collection context.
boolean	selectDependency(Dependency dependency)	Decides whether the specified dependency should be included in the dependency graph.

Method Details

selectDependency

boolean selectDependency(Dependency dependency)

Decides whether the specified dependency should be included in the dependency graph.

Parameters:

dependency - The dependency to check, must not be null.

Returns:

false if the dependency should be excluded from the children of the current node, true otherwise.

deriveChildSelector

DependencySelector deriveChildSelector(DependencyCollectionContext context)

Derives a dependency selector for the specified collection context. When calculating the child selector, implementors are strongly advised to simply return the current instance if nothing changed to help save memory.

Parameters:

context - The dependency collection context, must not be null.

Returns:

The dependency selector for the target node or null if dependencies should be unconditionally included in the sub graph.