/// <summary>
/// Creates a new instance of <see cref="InstanceUsage{TInstance}"/>.
/// </summary>
/// <param name="pool">The <see cref="LocklessInstancePoolForClasses{TInstance}"/>.</param>
/// <param name="factory">The callback to create a new instance of <typeparamref name="TInstance"/>, if the pool currently does not have instances available.</param>
/// <exception cref="ArgumentNullException">If either of <paramref name="pool"/> or <paramref name="factory"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">If <paramref name="factory"/> is used and it returns <c>null</c>.</exception>
public InstanceUsage(
LocklessInstancePoolForClasses <TInstance> pool,
Func <TInstance> factory
)
{
this._pool = ArgumentValidator.ValidateNotNull(nameof(pool), pool);
this.Instance = (pool.TakeInstance() ?? ArgumentValidator.ValidateNotNull(nameof(factory), factory)()) ?? throw new ArgumentException("instance");
}
/// <summary>
/// Creates a new instance of <see cref="InstancePoolForContextlessCreation{TInstance}"/>.
/// </summary>
/// <param name="pool">The pool to wrap.</param>
/// <param name="factory">The callback to use to create a new instance of type <typeparamref name="TInstance"/>.</param>
/// <exception cref="ArgumentNullException">If either or <paramref name="pool"/> or <paramref name="factory"/> is <c>null</c>.</exception>
public InstancePoolForContextlessCreation(
LocklessInstancePoolForClasses <TInstance> pool,
Func <TInstance> factory
)
{
this._pool = ArgumentValidator.ValidateNotNull(nameof(pool), pool);
this._factory = ArgumentValidator.ValidateNotNull(nameof(factory), factory);
}
