Creates a new pair of attributes (attribute name/attribute value) from each attribute on the input feature and either outputs these on a new feature or adds them as a list element to the original feature. In both cases, it is possible to either conserve or delete the original attributes and geometry.
Input Ports
Input
Features with attributes.
Output Ports
Output
Features containing the attribute-value pairs.
Parameters
Attribute Name Label
The new attribute used for the name of the extracted attribute.
Attribute Value Label
The new attribute used for the value of the extracted attribute.
Exploding Type
The original attributes and geometry are conserved or deleted depending on the settings for Keep geometry and Keep attributes.
When Exploding Type is set to Features, one feature is output for each original attribute. Each output feature will have two new attributes: one named Attribute Name Label (whose value will be the initial attribute's name) and one named Attribute Value Label (whose value will be the initial attribute's value).
When Exploding Type is set to List, the processed feature will have a new list attribute defined by List Name which will contain one entry (with attribute name and attribute value members, named by Attribute Name Label and Attribute Value Label) for each attribute of the feature.
Note: Attribute lists are not accessible from the output schema in Workbench unless they are first processed using a transformer that operates on them, such as ListExploder or ListConcatenator. All attribute list transformers are displayed in the Contents pane of the Transformer Help under Lists. Alternatively, AttributeExposer can be used.
Keep Geometry
If Keep Geometry is Yes, each output feature will have the same geometry as the given input feature. Otherwise, output features will have no geometry.
Keep Attributes
If Keep Attributes is Yes, the initial attributes on the processed features are preserved. Otherwise, output features will only have the attributes created by this factory.
List Name
The list attribute to be used when the Exploding Type parameter is set to List.
Example
Suppose we have an input feature with the following two attributes:.
- Name = John
- Type = Employee
If Keep Attributes is set to Yes, the parameter Exploding Type: Feature will produce two features with four attributes each:
Name = John
Type = Employee
_attr_name = Name
_attr_value = John
Name = John
Type = Employee
_attr_name = Type
_attr_value = Employee
The parameter Exploding Type: List will add an attribute list to the original feature:
Name = John
Type = Employee
_attr_list{0}._attr_name = Name
_attr_list{0}._attr_value = John
_attr_list{1}._attr_name = Type
_attr_list{1}._attr_value = Employee
FME Licensing Level
FME Professional edition and above
Editing Transformer Parameters
Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click 
beside the applicable parameter. For more information, see Transformer Parameter Menu Options.
Transformer Categories
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