public EfMatcher(EfMatcherConfig <TInLeft, TEntity, TCtx, TKey> config)
{
_getFullDataset = config.GetFullDataset;
_createIfNotFound = config.CreateIfNotFound;
_includeInstruction = config.IncludeInstruction;
Context = config.Context;
_getLeftKey = config.LeftKeyExpression.Compile();
_getRightKey = config.RightKeyExpression.Compile();
_matchCriteriaBuilder = MatchCriteriaBuilder.Create(config.LeftKeyExpression, config.RightKeyExpression, config.DefaultDatasetCriteria);
if (config.GetFullDataset)
{
var query = (_includeInstruction == null ? config.Context.Set <TEntity>() : _includeInstruction(config.Context.Set <TEntity>()));
if (config.DefaultDatasetCriteria != null)
{
query = query.Where(config.DefaultDatasetCriteria);
}
var defaultCache = query.ToList();
_cacheSize = Math.Max(defaultCache.Count, config.MinCacheSize);
_cachedEntities = defaultCache
.Select(i => new { Key = _getRightKey(i), Value = new CachedEntity(i) })
.Where(i => i.Key != null)
.ToDictionary(i => i.Key, i => i.Value);
}
else
{
_cacheSize = config.MinCacheSize;
}
}
public EfMatcher(EfMatcherConfig <TInLeft, TEntity, TKey> config)
{
_getFullDataset = config.GetFullDataset;
_createIfNotFound = config.CreateIfNotFound;
Context = config.Context;
_getLeftKey = config.LeftKeyExpression.Compile();
_getRightKey = config.RightKeyExpression.Compile();
_matchCriteriaBuilder = MatchCriteriaBuilder.Create(config.LeftKeyExpression, config.RightKeyExpression);
if (config.GetFullDataset)
{
var defaultCache = config.Query.ToList();
_cacheSize = Math.Max(defaultCache.Count, config.MinCacheSize);
_cachedEntities = defaultCache
.Select(i => new { Key = _getRightKey(i), Value = new CachedEntity(i) })
.Where(i => i.Key != null)
.GroupBy(i => i.Key)
.ToDictionary(i => i.Key, i => i.First().Value, GetEqualityComparer());
}
else
{
_query = config.Query;
_cacheSize = config.MinCacheSize;
}
}