Class First

All Implemented Interfaces:
org.jvnet.jaxb2_commons.lang.Equals2, org.jvnet.jaxb2_commons.lang.HashCode2, org.jvnet.jaxb2_commons.lang.ToString2
Direct Known Subclasses:
FirstEvaluator

public class First extends OperatorExpression implements org.jvnet.jaxb2_commons.lang.Equals2, org.jvnet.jaxb2_commons.lang.HashCode2, org.jvnet.jaxb2_commons.lang.ToString2
The First operator returns the first element in a list. If the order by attribute is specified, the list is sorted by that ordering prior to returning the first element. If the argument is null, the result is null.

Java class for First complex type.

The following schema fragment specifies the expected content contained within this class.

 <complexType name="First">
   <complexContent>
     <extension base="{urn:hl7-org:elm:r1}OperatorExpression">
       <sequence>
         <element name="source" type="{urn:hl7-org:elm:r1}Expression"/>
       </sequence>
       <attribute name="orderBy" type="{http://www.w3.org/2001/XMLSchema}string" />
     </extension>
   </complexContent>
 </complexType>