FME Transformers: 2024.2
Categories and Related Transformers
Related Transformers
AttributeCompressor
AttributeDecompressor
BinaryDecoder
BinaryEncoder
TextDecoder
TextEncoder
Encodes the values of the specified attributes to the desired encoding. If the incoming attribute is Null, the type of the attribute will be set to the desired encoding but the output value will be Null.
Typical Uses
- Converting attributes to a known encoding type
How does it work?
The AttributeEncoder receives any type of feature. Once connected, you may choose All Attributes or choose Selected Attributes for encoding. A wide variety of encoding types is available, including multiple languages, Unicode types, ISO types, and more.
You may either convert and mark the attributes with the new encoding (using the Honor Encoding option for Incoming Attributes), or simply mark them without conversion (Use Bytes for Incoming Attributes).
Usage Notes
- Unless a scenario requires re-encoding (or encoding definition) within the workspace, consider using the encoding parameters in your readers and writers instead of the AttributeEncoder.
Configuration
Input Ports
Input
Features with attributes to be encoded.
Output Ports
Output
Features with encoded attributes.
Parameters
Attributes to Encode
|
Encode |
All Attributes: Encode the value of all attributes except fme_ attributes. Selected Attributes: Specify a list of attributes to encode. |
|
Selected Attributes |
The subset of attributes for which you want the value encoded. |
General
|
Destination Encoding |
The desired encoding for the attributes. |
|
Incoming Attribute |
Honor Encoding: The value of the attribute is converted to the desired encoding based on the current attribute encoding. Use Bytes: No conversion will be done and the bytes in the attribute value will just be marked with the desired encoding. If the Destination Encoding is Binary (fme-binary), the transformer will produce the same result for both Honor Encoding and Use Bytes. |
Editing Transformer Parameters
Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click 
beside the applicable parameter.
How to Set Parameter Values
Defining Values
There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters.
Using the Text Editor
The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.
Using the Arithmetic Editor
The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.
Conditional Values
Set values depending on one or more test conditions that either pass or fail.
Parameter Condition Definition Dialog
Content
Expressions and strings can include a number of functions, characters, parameters, and more.
When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.
Content Types
| These functions manipulate and format strings. | |
|
Special Characters |
A set of control characters is available in the Text Editor. |
| Math functions are available in both editors. | |
| Date/Time Functions | Date and time functions are available in the Text Editor. |
| These operators are available in the Arithmetic Editor. | |
| These return primarily feature-specific values. | |
| FME and workspace-specific parameters may be used. | |
| Creating and Modifying User Parameters | Create your own editable parameters. |
Dialog Options - Tables
Table Tools
Transformers with table-style parameters have additional tools for populating and manipulating values.
|
Row Reordering
|
Enabled once you have clicked on a row item. Choices include:
|
|
Cut, Copy, and Paste
|
Enabled once you have clicked on a row item. Choices include:
Cut, copy, and paste may be used within a transformer, or between transformers. |
|
Filter
|
Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output. |
|
Import
|
Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers. |
|
Reset/Refresh
|
Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers. |
Note: Not all tools are available in all transformers.
For more information, see Transformer Parameter Menu Options.
Reference
|
Processing Behavior |
|
|
Feature Holding |
No |
| Dependencies | None |
| Aliases | |
| History |
FME Community
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Examples may contain information licensed under the Open Government Licence – Vancouver, Open Government Licence - British Columbia, and/or Open Government Licence – Canada.