Daniel Keir Haywood created ISIS-2776:
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Summary: @Parameter(regex=...) does not allow for parameter to
also be optional.
Key: ISIS-2776
URL: https://issues.apache.org/jira/browse/ISIS-2776
Project: Isis
Issue Type: Bug
Components: Isis Core
Affects Versions: 2.0.0-M5
Reporter: Daniel Keir Haywood
Assignee: Daniel Keir Haywood
Fix For: 2.0.0-M6
In other words, if null is provided then the regex fails. It should just
ignore.
This shows up as a problem for the simple case, eg:
`@Parameter(regex=..., optionality=OPTIONAL)`
it also shows up in the case of a chained meta-annotation:
{code:java}
@Parameter(regex=..., optionality=MANDATORY)
public @interface Reference {}{code}
and
{code:java}
@Parameter(optionality=OPTIONAL)
@Reference
public @interface VatCode {} {code}
where we want parameters annotated with `@VatCode` to be optional, overriding
the inherited mandatory from `@Reference`.
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