Use Case
The attached workspace provides an example workspace showing thirteen different ways to use the SchemaMapper transformer.
The various uses of the SchemaMapper demonstrated in the workspace are:
Type 1: Simple feature type to feature type mappings (1:1)
Type 2: Feature type to feature type where one features maps to many features
1:M feature mapping based on a source attribute value
Type 3: Feature type to feature type where many features map to a single feature
M:1 feature mapping
Type 4: Attribute to attribute mapping
1:1 attribute mapping
Type 5: The same attribute (type) in different tables map to different attributes in the destination feature type i.e.
Pole/type > pole_type Manhole/type > manhole_type Multple entries per attribute, based on feature
Type 6: Attributes in a table map to the different attributes based on the value of the source attribute i.e.
Pole/type = 1 > pole_type = 1 Pole/type = 2 > material = 2 Multiple entries per attribute, based on feature & value
Type 7: Attributes in a table map to the different attributes based on the value of the source attribute i.e.
Pole/type = 1 > pole_type = 1 Pole/type = 2 > material = 2 Multiple entries per attribute, based on feature & value
Type 8: Feature & attribute mapping
Feature to feature mapping 1:1 Attribute to attribute mapping 1:1 i.e. Pole/typeA > pole_type Pole/typeB > material
Type 9: Simple attribute value mapping (domain mapping) Requires a separate schemamapper for each domain (basically the idea is that this could be a dynamic ValueMapper)
Type 10: Attribute value mapping
Attribute to attribute mapping 1:1 Value mapping 1:1 type X > A type Y > B material X > A material Y > B
Type 11: Attribute value mapping - for several different attributes for different feature types.
Attribute to attribute mapping 1:1 Value mapping 1:1 Pole type X > A Pole type Y > B Pole material X > A Pole material Y > B Manhole type u > 1 Manhole type v > 2
Type 12: Attribute value mapping - for several different attributes for different feature types.
Attribute to attribute mapping 1:1 Value mapping 1:1 Pole type X > pole_type A Pole type Y > pole_type B Pole material X > material_type A Pole material Y > material_type B Manhole type u > manhole_type 1 Manhole type v > manhole_type 2
Type 13: Attribute value mapping - for several different attributes for different feature types. attribute to attribute mapping 1:1 value mapping 1:1
Pole type X > supportStructures pole_type A Pole type Y > supportStructures pole_type B Pole material X > supportStructures material_type A Pole material Y > supportStructures material_type B Manhole type u > AccessPoint manhole_type 1 Manhole type v > AccessPoint manhole_type 2