Package org.eclipse.aether.resolution

Interface ResolutionErrorPolicy

public interface ResolutionErrorPolicy
Controls the caching of resolution errors for artifacts/metadata from remote repositories. If caching is enabled for a given resource, a marker will be set (usually somewhere in the local repository) to suppress repeated resolution attempts for the broken resource, thereby avoiding expensive but useless network IO. The error marker is considered stale once the repository's update policy has expired at which point a future resolution attempt will be allowed. Error caching considers the current network settings such that fixes to the configuration like authentication or proxy automatically trigger revalidation with the remote side regardless of the time elapsed since the previous resolution error.
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  • Field Details

    • CACHE_DISABLED

      static final int CACHE_DISABLED
      Bit mask indicating that resolution errors should not be cached in the local repository. This forces the system to always query the remote repository for locally missing artifacts/metadata.
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    • CACHE_NOT_FOUND

      static final int CACHE_NOT_FOUND
      Bit flag indicating whether missing artifacts/metadata should be cached in the local repository. If caching is enabled, resolution will not be reattempted until the update policy for the affected resource has expired.
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    • CACHE_TRANSFER_ERROR

      static final int CACHE_TRANSFER_ERROR
      Bit flag indicating whether connectivity/transfer errors (e.g. unreachable host, bad authentication) should be cached in the local repository. If caching is enabled, resolution will not be reattempted until the update policy for the affected resource has expired.
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    • CACHE_ALL

      static final int CACHE_ALL
      Bit mask indicating that all resolution errors should be cached in the local repository.
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  • Method Details

    • getArtifactPolicy

      int getArtifactPolicy(RepositorySystemSession session, ResolutionErrorPolicyRequest<Artifact> request)
      Gets the error policy for an artifact.
      Parameters:
      session - The repository session during which the policy is determined, must not be null.
      request - The policy request holding further details, must not be null.
      Returns:
      The bit mask describing the desired error policy.

    • getMetadataPolicy

      int getMetadataPolicy(RepositorySystemSession session, ResolutionErrorPolicyRequest<Metadata> request)
      Gets the error policy for some metadata.
      Parameters:
      session - The repository session during which the policy is determined, must not be null.
      request - The policy request holding further details, must not be null.
      Returns:
      The bit mask describing the desired error policy.