Pavel Tupitsyn created IGNITE-4904:
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Summary: .NET: DML via LINQ
Key: IGNITE-4904
URL: https://issues.apache.org/jira/browse/IGNITE-4904
Project: Ignite
Issue Type: New Feature
Components: platforms
Affects Versions: 1.9
Reporter: Pavel Tupitsyn
Fix For: 2.0
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:
{code}
public static int DeleteAll<K, V>(this ICache<K, V> cache,
IQueryable<ICacheEntry<K, V>> items);
{code}
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
{code}
public static int UpdateAll<K, V>(this ICache<K, V> cache,
IQueryable<ICacheEntry<K, V>> items, params UpdateAction[] actions);
{code}
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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