Package com.ibm.fhir.persistence.util

Class AbstractQueryBuilder<T1>

  • All Implemented Interfaces:
    QueryBuilder<T1>
    Direct Known Subclasses:
    JDBCQueryBuilder
    public abstract class AbstractQueryBuilder<T1>
extends Object
implements QueryBuilder<T1>
    This class defines a reusable method structure and common functionality for a FHIR persistence query builder.

    • Constructor Detail

      • AbstractQueryBuilder

        public AbstractQueryBuilder()

    • Method Detail

      • extractReferenceFromUrl

        public static String extractReferenceFromUrl​(String parmValue)
        Examines the passed ParamaterValue, and checks to see if the value is a URL. If it is, the {ResourceType/id} part of the URL path is extracted and returned. For example: If the input value is http://localhost:8080/fhir/Patient/123, then Patient/123 is returned.
        Parameters:
        parmValue - A valid String parameter value that may or may not contain a URL.
        Returns:
        String - The last 2 segments of the URL path is returned if the passed parmValue is a URL; otherwise, null is returned.

      • isAbsoluteURL

        public static boolean isAbsoluteURL​(String s)

      • buildQueryParm

        protected T1 buildQueryParm​(Class<?> resourceType,
                            QueryParameter queryParm)
                     throws Exception
        Builds a query segment for the passed query parameter.
        Parameters:
        resourceType - - A valid FHIR Resource type
        queryParm - - A Parameter object describing the name, value and type of search parm.
        Returns:
        T1 - An object representing the selector query segment for the passed search parm.
        Throws:
        Exception

      • processReferenceParm

        protected abstract T1 processReferenceParm​(Class<?> resourceType,
                                           QueryParameter queryParm)
                                    throws Exception
        Creates a query segment for a Reference type parameter.
        Parameters:
        queryParm - - The query parameter.
        Returns:
        T1 - An object containing query segment.
        Throws:
        Exception

      • processChainedReferenceParm

        protected abstract T1 processChainedReferenceParm​(QueryParameter queryParm)
                                           throws Exception
        Contains special logic for handling chained reference search parameters.
        Parameters:
        queryParm - - The query parameter.
        Returns:
        T1 - An object containing a query segment.
        Throws:
        FHIRPersistenceException
        Exception

      • processInclusionCriteria

        protected abstract T1 processInclusionCriteria​(QueryParameter queryParm)
                                        throws Exception
        Contains special logic for handling Compartment based searches.
        Parameters:
        queryParm - - The query parameter.
        Returns:
        T1 - An object containing a query segment.
        Throws:
        FHIRPersistenceException
        Exception

      • processDateParm

        protected abstract T1 processDateParm​(Class<?> resourceType,
                                      QueryParameter queryParm)
                               throws Exception
        Creates a query segment for a Date type parameter.
        Parameters:
        queryParm - - The query parameter.
        Returns:
        T1 - An object containing query segment.
        Throws:
        Exception

      • processQuantityParm

        protected abstract T1 processQuantityParm​(Class<?> resourceType,
                                          QueryParameter queryParm)
                                   throws Exception
        Creates a query segment for a Quantity type parameter.
        Parameters:
        queryParm - - The query parameter.
        Returns:
        T1 - An object containing query segment.
        Throws:
        Exception

      • processLocationPosition

        protected T1 processLocationPosition​(List<QueryParameter> queryParameters,
                                     String paramTableAlias)
                              throws FHIRPersistenceException
        This method executes special logic for a Token type query that maps to a LocationPosition data type.
        Parameters:
        queryParameters - The entire collection of query input parameters
        Returns:
        T1 - A query segment related to a LocationPosition
        Throws:
        FHIRPersistenceException

      • buildLocationQuerySegment

        protected abstract T1 buildLocationQuerySegment​(String parmName,
                                                List<Bounding> boundingAreas,
                                                String paramTableAlias)
                                         throws FHIRPersistenceException
        Builds a query segment for the passed parameter name using the geospatial data contained with the passed BoundingBox
        Parameters:
        parmName - - The name of the search parameter
        boundingAreas - - Container for the geospatial data needed to construct the query segment.
        paramTableAlias - the alias name of the parameter table
        Returns:
        T1 - The query segment necessary for searching locations that are inside the bounding box.
        Throws:
        FHIRPersistenceException