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https://issues.apache.org/jira/browse/SIS-91?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Desruisseaux updated SIS-91:
-----------------------------------

    Description: 
The developer guide needs to be expanded with the following items:

* The four levels of documentation: members, types, packages, modules (APT 
pages).
* The {{castOrCopy}} methods, found in metadata, referencing, _etc_.
* Convenience constructors in metadata object. Their arguments are the 
mandatory properties of the metadata object, and the argument types are often 
simpler than the corresponding setter method (singleton, {{CharSequence}} 
instead of {{InternationalString}}).
* Policy about {{null}} argument value: often accepted in the following 
contexts:
** The value of an optional property. Very common in metadata objects.
** In static method calculating a value from the given argument, without 
changing the state of any object. In such case, the value returned by that 
method will often be {{null}} as well. This is very similar to {{NaN}} number 
in {{java.lang.Math}} functions.
* Unified identifiers view ({{IdentifierMap}}).


  was:
The developer guide needs to be expanded with the following items:

* The four levels of documentation: members, types, packages, modules (APT 
pages).
* The {{castOrCopy}} methods, found in metadata, referencing, _etc_.
* Convenience constructors in metadata object. Their arguments are the 
mandatory properties of the metadata object, and the argument types are often 
simpler than the corresponding setter method (singleton, {{CharSequence}} 
instead of {{InternationalString}}).
* Policy about {{null}} argument value: often accepted in the following 
contexts:
** The value of an optional property. Very common in metadata objects.
** In static method calculating a value from the given argument, without 
changing the state of any object. In such case, the value returned by that 
method will often be {{null}} as well. This is very similar to {{NaN}} number 
in {{java.lang.Math}} functions.


    
> Addition to the developer guide for metadata
> --------------------------------------------
>
>                 Key: SIS-91
>                 URL: https://issues.apache.org/jira/browse/SIS-91
>             Project: Spatial Information Systems
>          Issue Type: Improvement
>          Components: Documentation
>            Reporter: Martin Desruisseaux
>            Assignee: Martin Desruisseaux
>            Priority: Minor
>             Fix For: 0.3
>
>
> The developer guide needs to be expanded with the following items:
> * The four levels of documentation: members, types, packages, modules (APT 
> pages).
> * The {{castOrCopy}} methods, found in metadata, referencing, _etc_.
> * Convenience constructors in metadata object. Their arguments are the 
> mandatory properties of the metadata object, and the argument types are often 
> simpler than the corresponding setter method (singleton, {{CharSequence}} 
> instead of {{InternationalString}}).
> * Policy about {{null}} argument value: often accepted in the following 
> contexts:
> ** The value of an optional property. Very common in metadata objects.
> ** In static method calculating a value from the given argument, without 
> changing the state of any object. In such case, the value returned by that 
> method will often be {{null}} as well. This is very similar to {{NaN}} number 
> in {{java.lang.Math}} functions.
> * Unified identifiers view ({{IdentifierMap}}).

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