Added missing file

src/main/java/ca/uhn/fhir/jpa/starter/annotations/OnDSTU3Condition.java

@@ -0,0 +1,19 @@
+package ca.uhn.fhir.jpa.starter.annotations;
+
+import ca.uhn.fhir.context.FhirVersionEnum;
+import org.springframework.context.annotation.Condition;
+import org.springframework.context.annotation.ConditionContext;
+import org.springframework.core.type.AnnotatedTypeMetadata;
+
+public class OnDSTU3Condition implements Condition {
+  @Override
+  public boolean matches(ConditionContext conditionContext, AnnotatedTypeMetadata metadata) {
+    FhirVersionEnum version = FhirVersionEnum.forVersionString(conditionContext.
+      getEnvironment()
+      .getProperty("hapi.fhir.fhir_version")
+      .toUpperCase());
+
+    return version == FhirVersionEnum.DSTU3;
+
+  }
+}