How to use

hasElement

method

in

org.hl7.fhir.r4.model.StructureMap$StructureMapGroupRuleTargetComponent

 b.append("@");
b.append(rt.getContext());
if (rt.hasElement())  {
  b.append('.');
  b.append(rt.getElement());

 private boolean isSimpleSyntax(StructureMapGroupRuleComponent rule) {
 return 
   (rule.getSource().size() == 1 && rule.getSourceFirstRep().hasContext() && rule.getSourceFirstRep().hasElement() && !rule.getSourceFirstRep().hasVariable()) &&
   (rule.getTarget().size() == 1 && rule.getTargetFirstRep().hasContext() && rule.getTargetFirstRep().hasElement() && !rule.getTargetFirstRep().hasVariable() && !rule.getTargetFirstRep().hasParameter()) &&
   (rule.getDependent().size() == 0 && rule.getRule().size() == 0);
}

private void processTarget(String ruleId, TransformContext context, Variables vars, StructureMap map, StructureMapGroupComponent group, StructureMapGroupRuleTargetComponent tgt, String srcVar, boolean atRoot) throws FHIRException {
  Base dest = null;
  if (tgt.hasContext()) {
    dest = vars.get(VariableMode.OUTPUT, tgt.getContext());
   if (dest == null)
     throw new FHIRException("Rule \""+ruleId+"\": target context not known: "+tgt.getContext());
   if (!tgt.hasElement())
     throw new FHIRException("Rule \""+ruleId+"\": Not supported yet");
  }
   Base v = null;
   if (tgt.hasTransform()) {
     v = runTransform(ruleId, context, map, group, tgt, vars, dest, tgt.getElement(), srcVar, atRoot);
     if (v != null && dest != null)
       v = dest.setProperty(tgt.getElement().hashCode(), tgt.getElement(), v); // reset v because some implementations may have to rewrite v when setting the value
   } else if (dest != null) 
     v = dest.makeProperty(tgt.getElement().hashCode(), tgt.getElement());
   if (tgt.hasVariable() && v != null)
     vars.add(VariableMode.OUTPUT, tgt.getVariable(), v);
 }

 b.append("@");
b.append(rt.getContext());
if (rt.hasElement())  {
  b.append('.');
  b.append(rt.getElement());

public static org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent convertStructureMapGroupRuleTargetComponent(org.hl7.fhir.r4.model.StructureMap.StructureMapGroupRuleTargetComponent src) throws FHIRException {
 if (src == null || src.isEmpty())
  return null;
 org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent tgt = new org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent();
 copyElement(src, tgt);
 if (src.hasContext())
  tgt.setContext(src.getContext());
 if (src.hasContextType())
  tgt.setContextType(convertStructureMapContextType(src.getContextType()));
 if (src.hasElement())
  tgt.setElement(src.getElement());
 if (src.hasVariable())
  tgt.setVariable(src.getVariable());
 for (Enumeration<org.hl7.fhir.r4.model.StructureMap.StructureMapTargetListMode> t : src.getListMode())
  tgt.addListMode(convertStructureMapTargetListMode(t.getValue()));
 if (src.hasListRuleId())
  tgt.setListRuleId(src.getListRuleId());
 if (src.hasTransform())
  tgt.setTransform(convertStructureMapTransform(src.getTransform()));
 for (org.hl7.fhir.r4.model.StructureMap.StructureMapGroupRuleTargetParameterComponent t : src.getParameter())
  tgt.addParameter(convertStructureMapGroupRuleTargetParameterComponent(t));
 return tgt;
}

private void processTarget(String ruleId, TransformContext context, Variables vars, StructureMap map, StructureMapGroupComponent group, StructureMapGroupRuleTargetComponent tgt, String srcVar, boolean atRoot) throws FHIRException {
  Base dest = null;
  if (tgt.hasContext()) {
    dest = vars.get(VariableMode.OUTPUT, tgt.getContext());
   if (dest == null)
     throw new FHIRException("Rule \""+ruleId+"\": target context not known: "+tgt.getContext());
   if (!tgt.hasElement())
     throw new FHIRException("Rule \""+ruleId+"\": Not supported yet");
  }
   Base v = null;
   if (tgt.hasTransform()) {
     v = runTransform(ruleId, context, map, group, tgt, vars, dest, tgt.getElement(), srcVar, atRoot);
     if (v != null && dest != null)
       v = dest.setProperty(tgt.getElement().hashCode(), tgt.getElement(), v); // reset v because some implementations may have to rewrite v when setting the value
   } else if (dest != null) 
     v = dest.makeProperty(tgt.getElement().hashCode(), tgt.getElement());
   if (tgt.hasVariable() && v != null)
     vars.add(VariableMode.OUTPUT, tgt.getVariable(), v);
 }

 private boolean isSimpleSyntax(StructureMapGroupRuleComponent rule) {
 return 
   (rule.getSource().size() == 1 && rule.getSourceFirstRep().hasContext() && rule.getSourceFirstRep().hasElement() && !rule.getSourceFirstRep().hasVariable()) &&
   (rule.getTarget().size() == 1 && rule.getTargetFirstRep().hasContext() && rule.getTargetFirstRep().hasElement() && !rule.getTargetFirstRep().hasVariable() && !rule.getTargetFirstRep().hasParameter()) &&
   (rule.getDependent().size() == 0 && rule.getRule().size() == 0);
}

public static org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent convertStructureMapGroupRuleTargetComponent(org.hl7.fhir.r4.model.StructureMap.StructureMapGroupRuleTargetComponent src) throws FHIRException {
 if (src == null || src.isEmpty())
  return null;
 org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent tgt = new org.hl7.fhir.dstu2016may.model.StructureMap.StructureMapGroupRuleTargetComponent();
 copyElement(src, tgt);
 if (src.hasContext())
  tgt.setContext(src.getContext());
 if (src.hasContextType())
  tgt.setContextType(convertStructureMapContextType(src.getContextType()));
 if (src.hasElement())
  tgt.setElement(src.getElement());
 if (src.hasVariable())
  tgt.setVariable(src.getVariable());
 for (Enumeration<org.hl7.fhir.r4.model.StructureMap.StructureMapTargetListMode> t : src.getListMode())
  tgt.addListMode(convertStructureMapTargetListMode(t.getValue()));
 if (src.hasListRuleId())
  tgt.setListRuleId(src.getListRuleId());
 if (src.hasTransform())
  tgt.setTransform(convertStructureMapTransform(src.getTransform()));
 for (org.hl7.fhir.r4.model.StructureMap.StructureMapGroupRuleTargetParameterComponent t : src.getParameter())
  tgt.addParameter(convertStructureMapGroupRuleTargetParameterComponent(t));
 return tgt;
}