Description
Perform bulk update operations via LINQ: UPDATE WHERE, DELETE WHERE. Insert can already be done on object level with ICache.PutAll.
1) DELETE WHERE. This is quite simple. We can provide an extension method like this:
public static int DeleteAll<K, V>(this ICache<K, V> cache, IQueryable<ICacheEntry<K, V>> items);
2) UPDATE WHERE. This is tricky, because LINQ only works with expression trees, and multi-line methods are not supported. We should come up with a way to provide a list of columns and values, something like
public static int UpdateAll<K, V>(this ICache<K, V> cache, IQueryable<ICacheEntry<K, V>> items, params UpdateAction[] actions);
where UpdateAction can consist of a MemberExpression and a value for that member.
We should probably do delete as a separate task first.
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Issue Links
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IGNITE-5300 .NET: LINQ RemoveAll and UpdateAll examples
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