public static Expression WithTranslations(Expression expression, TranslationMap map)
{
Argument.EnsureNotNull("expression", expression);
Argument.EnsureNotNull("map", map);
return(new TranslatingVisitor(map).Visit(expression));
}
/// <summary>
/// Create a new <see cref="Expression"/> tree based upon the
/// <paramref name="expression"/> with translatable properties decomposed back
/// into their expression trees ready for translation to a remote provider using
/// the default <see cref="TranslationMap"/>.
/// </summary>
/// <param name="expression">Expression tree to translate.</param>
/// <param name="map"><see cref="TranslationMap"/> used to translate property accesses.</param>
/// <returns><see cref="Expression"/> tree with translatable expressions translated.</returns>
public static Expression WithTranslations(Expression expression, TranslationMap map)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
if (map == null)
{
throw new ArgumentNullException(nameof(map));
}
return(new TranslatingVisitor(map).Visit(expression));
}
internal TranslatingVisitor(TranslationMap map)
{
this.map = map;
}
public static Expression WithTranslations(Expression expression, TranslationMap map)
{
return(new TranslatingVisitor(map).Visit(expression));
}
public static IQueryable <T> WithTranslations <T>(this IQueryable <T> source, TranslationMap map)
{
return(source.Provider.CreateQuery <T>(WithTranslations(source.Expression, map)));
}
/// <summary>
/// Create a new <see cref="IQueryable{T}"/> based upon the
/// <paramref name="source"/> with the translatable properties decomposed back
/// into their expression trees ready for translation to a remote provider using
/// a specific <paramref name="map"/>.
/// </summary>
/// <typeparam name="T">Result type of the query.</typeparam>
/// <param name="source">Source query to translate.</param>
/// <param name="map"><see cref="TranslationMap"/> used to translate property accesses.</param>
/// <returns><see cref="IQueryable{T}"/> containing translated query.</returns>
public static IQueryable <T> WithTranslations <T>(this IQueryable <T> source, TranslationMap map)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (map == null)
{
throw new ArgumentNullException(nameof(map));
}
return(source.Provider.CreateQuery <T>(WithTranslations(source.Expression, map)));
}
internal TranslatingVisitor(TranslationMap map)
{
this.map = map ?? throw new ArgumentNullException(nameof(map));
}
internal TranslatingVisitor(TranslationMap map)
{
Argument.EnsureNotNull("map", map);
this.map = map;
}
public static IQueryable <T> WithTranslations <T>(this IQueryable <T> source, TranslationMap map)
{
Argument.EnsureNotNull("source", source);
Argument.EnsureNotNull("map", map);
return(source.Provider.CreateQuery <T>(WithTranslations(source.Expression, map)));
}
