Package org.cqframework.cql.elm.execution

Class Null

java.lang.Object
org.opencds.cqf.cql.engine.elm.execution.Executable
org.cqframework.cql.elm.execution.Element
org.cqframework.cql.elm.execution.Expression
org.cqframework.cql.elm.execution.Null
All Implemented Interfaces:
org.jvnet.jaxb2_commons.lang.Equals2, org.jvnet.jaxb2_commons.lang.HashCode2, org.jvnet.jaxb2_commons.lang.ToString2
Direct Known Subclasses:
NullEvaluator
public class Null extends Expression implements org.jvnet.jaxb2_commons.lang.Equals2, org.jvnet.jaxb2_commons.lang.HashCode2, org.jvnet.jaxb2_commons.lang.ToString2
The Null operator returns a null, or missing information marker. To avoid the need to cast this result, the operator is allowed to return a typed null.

Java class for Null complex type.

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

 <complexType name="Null">
   <complexContent>
     <extension base="{urn:hl7-org:elm:r1}Expression">
       <attribute name="valueType" type="{http://www.w3.org/2001/XMLSchema}QName" />
     </extension>
   </complexContent>
 </complexType>

  • Field Details

    • valueType

      protected QName valueType

  • Constructor Details

    • Null

      public Null()

  • Method Details

    • getValueType

      public QName getValueType()
      Gets the value of the valueType property.
      Returns:
      possible object is QName

    • setValueType

      public void setValueType(QName value)
      Sets the value of the valueType property.
      Parameters:
      value - allowed object is QName

    • withValueType

      public Null withValueType(QName value)

    • withAnnotation

      public Null withAnnotation(CqlToElmBase... values)
      Overrides:
      withAnnotation in class Expression

    • withAnnotation

      public Null withAnnotation(Collection<CqlToElmBase> values)
      Overrides:
      withAnnotation in class Expression

    • withResultTypeSpecifier

      public Null withResultTypeSpecifier(TypeSpecifier value)
      Overrides:
      withResultTypeSpecifier in class Expression

    • withLocalId

      public Null withLocalId(String value)
      Overrides:
      withLocalId in class Expression

    • withLocator

      public Null withLocator(String value)
      Overrides:
      withLocator in class Expression

    • withResultTypeName

      public Null withResultTypeName(QName value)
      Overrides:
      withResultTypeName in class Expression

    • equals

      public boolean equals(org.jvnet.jaxb2_commons.locator.ObjectLocator thisLocator, org.jvnet.jaxb2_commons.locator.ObjectLocator thatLocator, Object object, org.jvnet.jaxb2_commons.lang.EqualsStrategy2 strategy)
      Specified by:
      equals in interface org.jvnet.jaxb2_commons.lang.Equals2
      Overrides:
      equals in class Expression

    • equals

      public boolean equals(Object object)
      Overrides:
      equals in class Expression

    • hashCode

      public int hashCode(org.jvnet.jaxb2_commons.locator.ObjectLocator locator, org.jvnet.jaxb2_commons.lang.HashCodeStrategy2 strategy)
      Specified by:
      hashCode in interface org.jvnet.jaxb2_commons.lang.HashCode2
      Overrides:
      hashCode in class Expression

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Expression

    • toString

      public String toString()
      Overrides:
      toString in class Expression

    • append

      public StringBuilder append(org.jvnet.jaxb2_commons.locator.ObjectLocator locator, StringBuilder buffer, org.jvnet.jaxb2_commons.lang.ToStringStrategy2 strategy)
      Specified by:
      append in interface org.jvnet.jaxb2_commons.lang.ToString2
      Overrides:
      append in class Expression

    • appendFields

      public StringBuilder appendFields(org.jvnet.jaxb2_commons.locator.ObjectLocator locator, StringBuilder buffer, org.jvnet.jaxb2_commons.lang.ToStringStrategy2 strategy)
      Specified by:
      appendFields in interface org.jvnet.jaxb2_commons.lang.ToString2
      Overrides:
      appendFields in class Expression