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<p>Le 15/02/2019 à 12:12, Christoph Steinforth a écrit :</p>
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cite="mid:CANkBy=k+mtZvrDP-JZ0v97bnWXgrGZPZB-jzVUs0qjO9fRdcLw@mail.gmail.com">
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<p>If I get this right</p>
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In particular there is nothing special about "simple
features" versus "complex features"; there is only
"features".
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<p>something like </p>
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<p>public class DefaultComplexType extends
DefaultAttributeType<AttributeType> implements
ComplexType</p>
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<p>which is taken from geotk 3.20 is not present in SIS
anymore?</p>
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<p>Right. There is no more <tt>ComplexType</tt> in SIS. All
attributes and features can potentially be complex. "Simple
features" in Geotk were features in which all attributes are
restricted to [1…1] multiplicity, while "complex features" are
everything else. SIS no longer define particular classes or
interfaces for those two cases. Given an <tt>AbstractFeature</tt>
instance, we can invoke <tt>getProperty(name)</tt>. The result
can be an instance of <tt>AbstractAttribute</tt>, which provides
two methods:</p>
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<li><tt>getValue()</tt> returning a single value and throwing <tt>IllegalStateException</tt>
if the attribute contains more than one value.</li>
<li><tt>getValues()</tt> returning a collection.</li>
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<p>Alternatively, <tt>AbstractFeature.getPropertyValue(name)</tt>
[1] can be used as a shortcut. The return value will be the value
directly if the multiplicity declared in <tt>AttributeType</tt>
is [0…0], [0…1] or [1…1], and a collection otherwise. <br>
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<p> Martin</p>
<pre>[1] <a class="moz-txt-link-freetext" href="http://sis.apache.org/apidocs/org/apache/sis/feature/AbstractFeature.html#getPropertyValue-java.lang.String">http://sis.apache.org/apidocs/org/apache/sis/feature/AbstractFeature.html#getPropertyValue-java.lang.String</a>-
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