/// <summary>
/// Create a new query to rewrite.
/// </summary>
/// <param name="query">The actual query.</param>
/// <param name="provider">The provider to rewrite the query.</param>
protected RewriteAsyncQueryable(IAsyncQueryable query, RewriteAsyncQueryProvider provider)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
Query = query;
Provider = provider;
}
/// <summary>
/// Rewrite a given query.
/// </summary>
/// <typeparam name="T">The type of the query data.</typeparam>
/// <param name="value">The query to rewrite.</param>
/// <param name="rewriter">The rewriter to rewrite the query.</param>
/// <returns>The rewritten query.</returns>
public static IOrderedAsyncQueryable <T> AsyncRewrite <T>(this IOrderedAsyncQueryable <T> value, ExpressionVisitor rewriter)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (rewriter == null)
{
throw new ArgumentNullException(nameof(rewriter));
}
var provider = new RewriteAsyncQueryProvider(value.Provider, rewriter);
return(new RewriteAsyncQueryable <T>(value, provider));
}
/// <summary>
/// Rewrite a given query.
/// </summary>
/// <param name="value">The query to rewrite.</param>
/// <param name="rewriter">The rewriter to rewrite the query.</param>
/// <returns>The rewritten query.</returns>
public static IOrderedAsyncQueryable AsyncRewrite(this IOrderedAsyncQueryable value, ExpressionVisitor rewriter)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (rewriter == null)
{
throw new ArgumentNullException(nameof(rewriter));
}
var provider = new RewriteAsyncQueryProvider(value.Provider, rewriter);
return((IOrderedAsyncQueryable)Activator.CreateInstance(
typeof(RewriteAsyncQueryable <>).MakeGenericType(value.ElementType),
value, provider));
}
