SearchParameter for on nested extensions

[FN LN]

Hello,

I am trying to add a custom search parameter on an extension that itself is a list of extensions. Here is the high level view of the class structure.

public Class MyCoverage extends Coverage {

...

@Child(name="specialDates")
@Extension(url="<base-url>/MyCoverage#specialDates", definedLocally=false, isModifier=false)
@Description(shortDefinition="Special Dates")

private List<SpecialDate> dates;

...

}

public Class SpecialDate extends BackboneElement {
@Child(name="field1")
@Extension(url="<base-url>#field1", definedLocally=false, isModifier=false)
@Description(shortDefinition="field1")

private String field1;

@Child(name="date")
@Extension(url="<base-url>#date", definedLocally=false, isModifier=false)
@Description(shortDefinition="date")

private DateTimeType date;

}

I know that for extensions that use built-in types like String, or Int the client can add search parameters by doing something like:

SearchParameter sp = new SearchParameter()
.setName("path.to.element")
.setType(Enumerations.SearchParamType.REFERENCE)
.setExpression("ResourceName.field")
.setStatus(Enumerations.PublicationStatus.ACTIVE)
.setCode("codeName")
.addBase("ResourceName")
.setXpathUsage(SearchParameter.XPathUsageType.NORMAL)

Then submitting to the server.

How would I go about setting this up if I want a search parameter on the MyCoverage.dates?

Thanks in advance.

[Andrea Caloni]

Hello, did you manage to fix this problem ? 

I am having the same issue with search parameters on nested extensions, and I am not able to find a solution...

Thanks, Andrea

[James Agnew]

Unfortunately I don't know that it's possible to define compound extensions using custom structures. Probably the easiest way to solve this is to use dynamic binding (e.g. calling addExtension() on a normal Coverage object, and then adding child extensions to the result of that call).

You can then create search parameters with expressions like:

Coverage.extension('http://ext-url').extension('http://child-ext-url').value

Cheers,

James

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