Biml Language Reference
CacheTransform Element
The Cache Transform transformation writes data from a connnected data source to a specified cache. This data can later be used by the lookup transformation. Using a cache enables multiple lookups to share the same cache rather than separately loading duplicate data.
Attributes
  Attribute API Type Default Description
ConnectionName AstCacheConnectionNode
This value specifies the connection used to access the cache.

[.NET API Property: Connection]

LocaleId Language
This value specifies which locale is used by the dataflow task.

[.NET API Property: LocaleId]

Name String
Specifies the name of the object. This name can be used to reference this object from anywhere else in the program.

[.NET API Property: Name]

TreatDuplicateKeysAsError Boolean
Determines whether duplicate keys in the reference data should be treated as errors when full cache mode is used.

[.NET API Property: TreatDuplicateKeysAsError]

ValidateExternalMetadata Boolean
This value specifies whether the data flow transformation is validated against columns that originated in external data sources. When server assets such as tables and stored procedures are created during processing, ValidateExternalMetadata is normally set to False, which prevents validation from completing at compile time.

[.NET API Property: ValidateExternalMetadata]

Singleton Children
  Child API Type Description
<ErrorHandling /> AstComponentErrorHandlingNode
This value specifies how errors are handled by default in columns processed by the component. This can be overriden at the component or column level for specific cases.

[.NET API Property: ErrorHandling]

<InputPath /> AstDataflowInputPathNode
This specifies the input path that will be used by this dataflow component. If an input path is not specified, the dataflow component will attempt to automatically discover an appropriate input path based on the surrounding dataflow.

[.NET API Property: InputPath]

Collection Children
  Child API Type Description
<Annotations>
    <Annotation />
</Annotations>
AstAnnotationNode
This is a collection of annotation items that can be used to specify documentation, tags, or other information. Annotations are particularly useful for storing information about nodes that can be used by BimlScript code.

[.NET API Property: Annotations]

<Columns>
    <Column />
</Columns>
AstDataflowColumnMappingNode
This value specifies how the component should map columns in the data flow to columns in the destination. Columns that are not explicitly listed in this collection are automatically mapped based on name.

[.NET API Property: Columns]

<DataflowOverrides>
    Multiple Choices...
</DataflowOverrides>
AstDataflowOverrideNode
Provides a collection of objects to override properties of the component, its input paths, its output paths, and its consituent dataflow columns.

[.NET API Property: DataflowOverrides]