Lineending keep and improving linebreaks in enums

[fpichler]

Suggestion from antigravity (CAUTION: may contain traces of AI :-D)

In synventis-tools/eclipse/synventis-code-formatter.xml, the setting controlling this is: org.eclipse.jdt.core.formatter.alignment_for_enum_constants

It was previously set to 0 ("Do not wrap"). Because the constants were on one line but exceeded the 100-character line limit, the formatter was forced to break the line somewhere else. It chose to break inside the enum arguments instead, since org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant allowed wrapping.

The Fix: I have changed alignment_for_enum_constants to 49, which corresponds to "Wrap all elements, every element on a new line".

This will force the formatter to treat the constants like this:

public enum TestEnum {
  OPENGRAPH_TITLE("og:title"),
  OPENGRAPH_TYPE("og:type"),
  // ... and so on
}

Why 49?

In the Eclipse compiler (org.eclipse.jdt.core.formatter), alignment values are bitmasks that combine multiple layout rules into a single integer.

When configuring how sequences of items (like method arguments or enum constants) are formatted, Eclipse uses a 4-bit "wrap strategy" combined with a 1-bit "force flag". Here's the breakdown of where 49 comes from:

1. The Strategy (48)

There are several base formatting strategies you can choose:

• 16 (WRAP_COMPACT): Wrap only when necessary, putting as many elements on a single line as possible without exceeding the max line length.
• 80 (WRAP_NEXT_PER_LINE): Wrap all elements, keeping the first element on the same line as the opening brace, but putting all subsequent elements on new lines.
• 48 (WRAP_ONE_PER_LINE): Wrap all elements, putting every single element on a new line.
  Since we explicitly want every enum constant completely broken out into its own vertical list, the correct baseline strategy to pick is 48 (WRAP_ONE_PER_LINE).

2. The Force Flag (+1)

In addition to the base strategy, Eclipse allows an optional "+1" flag called FORCE.

• If you don't add the 1 (so the value is just 48), the formatter will only apply line breaks if the line exceeds the maximum line width.
• If you do add the 1 (so the value becomes 48 + 1 = 49), it tells Eclipse: "I don't care how short this line is; FORCE every element onto a new line unconditionally.