dynamic query support.

2021-02-02 19:01:29 -05:00
parent 8175dc5f3d
commit ca307194db
26 changed files with 698 additions and 12 deletions
@@ -0,0 +1,54 @@
+using PoweredSoft.Data.Core;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Demo.AsyncProvider
+{
+    public class InMemoryQueryableHandler : IAsyncQueryableHandlerService
+    {
+        public Task<bool> AnyAsync<T>(IQueryable<T> queryable, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.Any(predicate));
+        }
+
+        public Task<bool> AnyAsync<T>(IQueryable<T> queryable, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.Any());
+        }
+
+        public bool CanHandle<T>(IQueryable<T> queryable)
+        {
+            var result = queryable is EnumerableQuery<T>;
+            return result;
+        }
+
+        public Task<int> CountAsync<T>(IQueryable<T> queryable, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.Count());
+        }
+
+        public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> queryable, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.FirstOrDefault());
+        }
+
+        public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> queryable, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.FirstOrDefault(predicate));
+        }
+
+        public Task<long> LongCountAsync<T>(IQueryable<T> queryable, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.LongCount());
+        }
+
+        public Task<List<T>> ToListAsync<T>(IQueryable<T> queryable, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(queryable.ToList());
+        }
+    }
+}