Dan Haywood created ISIS-1484:
---------------------------------
Summary: Extend @Parameter annotation to provide a class to obtain
the default for a parameter
Key: ISIS-1484
URL: https://issues.apache.org/jira/browse/ISIS-1484
Project: Isis
Issue Type: New Feature
Components: Core
Affects Versions: 1.13.0
Reporter: Dan Haywood
Assignee: Dan Haywood
Priority: Minor
Fix For: 1.13.1
eg:
{code}
public void updateName(
@Parameter(defaultFrom=ParameterDefaultFromProperty.class
@ParameterLayout(named = "New name")
final String name) {
setName(newName);
}
{code}
where (part of the applib):
{code}
public interface ParameterDefaulter {
Object defaultFor(Object domainObject, String actionName, String
parameterName);
}
{code}
and the applib also provides a default implementation:
{code}
public class ParameterDefaultFromProperty implements ParametedDefaulter { ... }
{code}
that uses an injected service (from core.runtime) to look up the parameter
value from the corresponding property of the object.
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