Package org.opencds.cqf.cql.engine.data

Class SystemDataProvider

java.lang.Object
org.opencds.cqf.cql.engine.model.BaseModelResolver
org.opencds.cqf.cql.engine.data.SystemDataProvider
All Implemented Interfaces:
DataProvider, ModelResolver, RetrieveProvider
public class SystemDataProvider extends BaseModelResolver implements DataProvider

  • Constructor Details

    • SystemDataProvider

      public SystemDataProvider()

  • Method Details

    • retrieve

      public Iterable<Object> retrieve(String context, String contextPath, Object contextValue, String dataType, String templateId, String codePath, Iterable<Code> codes, String valueSet, String datePath, String dateLowPath, String dateHighPath, Interval dateRange)
      Specified by:
      retrieve in interface RetrieveProvider

    • getPackageName

      public String getPackageName()
      Specified by:
      getPackageName in interface ModelResolver

    • setPackageName

      public void setPackageName(String packageName)
      Specified by:
      setPackageName in interface ModelResolver

    • resolvePath

      public Object resolvePath(Object target, String path)
      Description copied from interface: ModelResolver
      Resolve the provided path expression for the provided target. Paths can be things like simple dotted property notation (e.g. Patient.id) or more complex things like list indexed property expressions (e.g. Patient.name[0].given). The exact details are configued in the model definition and passed to the ELM file during CQL to ELM translation.
      Specified by:
      resolvePath in interface ModelResolver
      Returns:
      result of the provided expression. Null is expected whenever a path doesn't exist on the target.

    • setValue

      public void setValue(Object target, String path, Object value)
      Description copied from interface: ModelResolver
      Set the value of a particular property on the given model object.
      Specified by:
      setValue in interface ModelResolver
      Parameters:
      target - model object
      path - path to the property that will be set
      value - value to set to the property indicated by the path expression

    • resolveType

      public Class<?> resolveType(Object value)
      Description copied from interface: ModelResolver
      Resolve the Java class that corresponds to the given model object instance.
      Specified by:
      resolveType in interface ModelResolver
      Parameters:
      value - Object instance
      Returns:
      Class object that represents the specified value

    • resolveType

      public Class<?> resolveType(String typeName)
      Description copied from interface: ModelResolver
      Resolve the Java class that corresponds to the given model type
      Specified by:
      resolveType in interface ModelResolver
      Parameters:
      typeName - Model type name. In the ELM, model objects are namespaced (e.g. FHIR.Patient), but the namespace is removed prior to calling this method, so the input would just be Patient.
      Returns:
      Class object that represents the specified model type

    • createInstance

      public Object createInstance(String typeName)
      Description copied from interface: ModelResolver
      Create an instance of the model object that corresponds to the specified type.
      Specified by:
      createInstance in interface ModelResolver
      Parameters:
      typeName - Model type to create
      Returns:
      new instance of the specified model type

    • objectEqual

      public Boolean objectEqual(Object left, Object right)
      Description copied from interface: ModelResolver
      Compare two objects for equality
      Specified by:
      objectEqual in interface ModelResolver
      Parameters:
      left - left hand side of the equality expression
      right - right hand side of the equality expression
      Returns:
      flag indicating whether the objects are equal

    • objectEquivalent

      public Boolean objectEquivalent(Object left, Object right)
      Description copied from interface: ModelResolver
      Compare two objects for equivalence
      Specified by:
      objectEquivalent in interface ModelResolver
      Parameters:
      left - left hand side of the equivalence expression
      right - right hand side of the equivalence expression
      Returns:
      flag indicating whether the objects are equal

    • getContextPath

      public Object getContextPath(String contextType, String targetType)
      Description copied from interface: ModelResolver
      Get the path expression that expresses the relationship between the targetType and the given contextType. For example, in a FHIR model, with context type Patient and targetType Condition, the resulting path is subject because that is the model property on the Condition object that links the Condition to the Patient.
      Specified by:
      getContextPath in interface ModelResolver