org.openehealth.ipf.commons.ihe.fhir

Class LazyBundleProvider

java.lang.Object

org.openehealth.ipf.commons.ihe.fhir.AbstractBundleProvider

org.openehealth.ipf.commons.ihe.fhir.LazyBundleProvider

All Implemented Interfaces:

ca.uhn.fhir.rest.server.IBundleProvider

public class LazyBundleProvider
extends AbstractBundleProvider

Bundle provider that requests information from the RequestConsumer on request:

• If only the size of the result set is requested, the request will contain an additional empty message header named Constants.FHIR_REQUEST_SIZE_ONLY, and the response is expected to populate this header with the result size as integer value. The size is cached for further attempts to request the size
• If a subset of the result is requested, the request will contain in addition the lower and upper index in the message headers Constants.FHIR_FROM_INDEX and Constants.FHIR_TO_INDEX, respectively. The response is expected to contain this result subset.

Note: instances of this class is neither thread-safe nor can they be reused across requests

Constructor Summary

Constructors

Constructor and Description
LazyBundleProvider(RequestConsumer consumer, boolean cacheResults, Object payload, Map<String,Object> headers, FhirValidator validator) Initializes a lazy bundle provider

Method Summary

Modifier and Type	Method and Description
List<org.hl7.fhir.instance.model.api.IBaseResource>	getResources(int fromIndex, int toIndex)
int	size()

Methods inherited from class org.openehealth.ipf.commons.ihe.fhir.AbstractBundleProvider

getConsumer, getHeaders, getPayload, getPublished, obtainResources, preferredPageSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LazyBundleProvider

public LazyBundleProvider(RequestConsumer consumer,
                          boolean cacheResults,
                          Object payload,
                          Map<String,Object> headers,
                          FhirValidator validator)

Initializes a lazy bundle provider

Parameters:

consumer - FHIR consumer that uses ths provider

cacheResults - cache results. So far, only the result set size is cached

payload - incoming payload

headers - incoming headers

Method Detail

getResources

public List<org.hl7.fhir.instance.model.api.IBaseResource> getResources(int fromIndex,
                                                                        int toIndex)

size

public int size()