Currently attributes are allowed to be renamed and turned off on the Sequence node. We should enable this for all nodes.

Here is the desired behavior.

Dictionary (Mapped terms = OFF) and Literal:

• A single attribute, named as the node by default
• The attribute can be renamed by the user
• The attribute cannot be removed

Dictionary (Map terms = ON)

• Two attributes: one named as the node by default, and the second attribute named Mapped Term by default
• Both attributes can be renamed by the user (this is feature request [Feature Request] Provide edit option for headers under Map Terms #127)
• The first attribute cannot be removed. The second attribute (corresponding to the Mapped Term) can be removed.

Regex:

• One attribute for each capturing group
• All but one attribute can be removed
• All attributes can be renamed
• Example:
  • \$(\d+(\.\d+)?)\s+(billion) that captures text such as $3.4 billion should have 4 attributes by default:
  • Attribute 1 (covers the entire match and corresponds to group 0 of the regex, which is the entire match): $3.4 billion
  • Attribute 2 (covers group 1 of the regex) and matches 3.4
  • Attribute 3 (covers group 2 of the regex) and matches .4
  • Attribute 4 (covers group 3 of the regex) and matches billion

Sequence:

• One attribute for each of the input nodes of the sequence
• All but one attribute can be removed
• All attributes can be renamed
• Example 1: (<Metric.Metric>)<Token>{0,1}(<Preposition.Preposition>)<Token>{0,2}(<Division.Division>) that captures text such as revenue from the Global Technology Services should have 4 attributes by default (one for the entire match, and one for each open parenthesis):
  • Attribute 1 (covers the entire match and corresponds to group 0 of the sequence, which is the entire match): revenue from the Global Technology Services
  • Attribute 2 (covers group 1 of the sequence) and matches revenue
  • Attribute 3 (covers group 2 of the sequence) and matches from
  • Attribute 4 (covers group 3 of the sequence) and matches Global Technology Services
• Example 2: (<Metric.Metric><Token>{0,1}<Preposition.Preposition>)<Token>{0,2}(<Division.Division>) that captures text such as revenue from the Global Technology Services should have 3 attributes by default (one for the entire match, and one for each open parenthesis - 2 of them):
  • Attribute 1 (covers the entire match and corresponds to group 0 of the sequence, which is the entire match): revenue from the Global Technology Services
  • Attribute 2 (covers group 1 of the sequence) and matches revenue from
  • Attribute 3 (covers group 3 of the sequence) and matches Global Technology Services

Union

• Same attributes as those of the input nodes (the union cannot be created unless the input nodes have the same schema - the same number of attributes and the same names for the attributes)
• All but one attribute can be removed
• All attributes can be renamed

Consolidate

• Same attributes as those of the input node
• All but one attribute can be removed
• All attributes can be renamed

Filter

• Same attributes as those of the primary input node
• All but one attribute can be removed
• All attributes can be renamed