Class LookupTransformation<TInput, TSource>.PartialDbCacheSettings
Defines properties to configure a partial cache in a Lookup.
Inheritance
object
LookupTransformation<TInput, TSource>.PartialDbCacheSettings
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
object.ToString()
Namespace: ETLBox.DataFlow.LookupTransformation`2
Assembly: ETLBox.dll
Syntax
public class LookupTransformation<TInput, TSource>.PartialDbCacheSettings
Properties
ClearCache
Default is true. The lookup cache is cleared after every batch of incoming data.
Declaration
public bool ClearCache { get; set; }
Property Value
| Type | Description |
|---|---|
| bool |
LoadBatchSize
The cache is filled not for every row, but for a batch of rows to improve throughput. Define here the number of rows for every batch.
Declaration
public int LoadBatchSize { get; set; }
Property Value
| Type | Description |
|---|---|
| int |
LoadCacheSql
A custom sql to load data from the lookup source based on the input batch.
Declaration
public Func<TInput[], string> LoadCacheSql { get; set; }
Property Value
| Type | Description |
|---|---|
| System.Func<T, TResult><TInput[], string> |
SqlParameter
List of query parameters that are used to replace values in LoadCacheSql For every parameter provided, your sql statement should contain a placeholder. E.g.: 'SELECT col1 FROM table WHERE col2 > @parameter1'
Declaration
public Func<TInput[], QueryParameter[]> SqlParameter { get; set; }
Property Value
| Type | Description |
|---|---|
| System.Func<T, TResult><TInput[], QueryParameter[]> |