Class FallbackSolver

Wraps two solvers always passing requests to the primary one initially and falling back to secondary one should the primary one fail.

public sealed class FallbackSolver : ISolver

Inherited Members: object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

This class is immutable and thread-safe.

Wraps two solvers always passing requests to the primary one initially and falling back to secondary one should the primary one fail.

public FallbackSolver(ISolver primarySolver, ISolver secondarySolver)

primarySolver ISolver: The solver to run initially.
secondarySolver ISolver: he solver to fall back to should primarySolver fail.

This class is immutable and thread-safe.

Provides Selections that satisfy a set of Requirements.

public Selections Solve(Requirements requirements)

Feed files may be downloaded, signature validation is performed, implementations are not downloaded.

OperationCanceledException: The user canceled the task.
ArgumentException: requirements is incomplete.
IOException: A problem occurred while reading the feed file.
WebException: A problem occurred while fetching the feed file.
UnauthorizedAccessException: Access to the cache is not permitted.
SignatureException: The signature data of a remote feed file could not be verified.
SolverException: The solver was unable to provide Selections that fulfill the requirements.