Re: [higgins-dev] IdAS notes

["Sergey Lyakhov" <slyakhov@xxxxxxxxxxxxxx>]

Jim,

There are some additional proposals:

6.  IMetadata interface has two methods - getID() - returns HOWL type, and 
get Type() - returns xml type of data. We need the same methods for 
ISimpleValue, because it also has two such types. In addition, (it is not 
principal), I think it will be more correct to use the same name of methods 
which return the HOWL type of objects (subject, attribute, values etc.). So, 
I propose to use getType() name for methods which return HOWL type (of 
subject, attribute, value, metadata) and getXMLType() to return xml type of 
simple value and metadata.

7. There are some methods in IAttribute (addValue(URI), addSimpleValue(URI, 
Object) and addComplexValue(URI)), which require URI type of new value. This 
URI parameter is redundant, because Attribute can have only one type of 
value (type of values is equal to the type of attribute).

8. Perhaps it will be useful to add ISingleValuedAttribute 
getSingleValuedAttribute(URI attrID) method to IHasAttributes interface.

9. We need to add cancelUpdates() method to IContext interface. This method 
should be used by user to cancel all changes made after last invocation of 
applyUpdates(). I am sure it is very important method.

Thanks,
Sergey Lyakhov

----- Original Message ----- 
From: Sergey Lyakhov
To: higgins-dev@xxxxxxxxxxx
Sent: Thursday, May 24, 2007 8:49 PM
Subject: Re: [higgins-dev] IdAS notes


Jim,

In addition:

5. We need to add two methods int getMinCardinality() and int 
getMaxCardinality() to IAttributeModel interface.

Thanks,
Sergey Lyakhov

----- Original Message ----- 
From: Sergey Lyakhov
To: higgins-dev@xxxxxxxxxxx
Sent: Tuesday, May 22, 2007 9:44 PM
Subject: [higgins-dev] IdAS notes


Jim,

I have some notes about IdAS:

1. I suppose IMetadataModel interface should extend IModel interface (to 
inherit IDisplayData getDisplayData() method);

2. We need to add two methods getMetadataSet() and getMetadata(URI) to 
IDigitalSubjectModel, IAttributeModel and IAttributeValueModel;

3. IAttributeValueModel interface declares some methods (isValidValue(Object 
valueForm), isValid(String lexicalForm), toValueForm(String lexicalForm) and 
toLexicalForm(Object value)) which are not reqiured by 
IAttributeComplexValueModel. I proprose to move these methods from 
IAttributeValueModel to IAttributeSimpleValueModel;

4. There are some classes which contain wrong HOWL URIs (at least wrong base 
URI - AuthNNamePasswordMaterials, AuthNSelfIssuedMaterials etc.). Pershaps 
we need some class which will contain HOWL URIs constants.

Thanks,
Sergey Lyakhov




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