Umbraco-CMS/src/Umbraco.Infrastructure/IPublishedContentQueryAccessor.cs

using System.Diagnostics.CodeAnalysis;

namespace Umbraco.Cms.Core
{
    /// <remarks>
    /// Not intended for use in background threads where you should make use of <see cref="Umbraco.Cms.Core.Web.IUmbracoContextFactory.EnsureUmbracoContext"/>
    /// and instead resolve IPublishedContentQuery from a <see cref="Microsoft.Extensions.DependencyInjection.IServiceScope"/>
    /// e.g. using <see cref="Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.CreateScope"/>
    /// <example>
    /// <code>
    /// // Background thread example
    /// using UmbracoContextReference _ = _umbracoContextFactory.EnsureUmbracoContext();
    /// using IServiceScope serviceScope = _serviceProvider.CreateScope();
    /// IPublishedContentQuery query = serviceScope.ServiceProvider.GetRequiredService&lt;IPublishedContentQuery&gt;();
    /// </code>
    /// </example>
    /// </remarks>
    public interface IPublishedContentQueryAccessor
    {
        bool TryGetValue([MaybeNullWhen(false)]out IPublishedContentQuery publishedContentQuery);
    }
}