[AEM 6.4] InheritanceValueMap having stuck to retrieve child nodes (multifield items)

How are you trying to read items0, item1, etc

The inheritanceValueMap is just looking up the hierachy, it is not taking child nodes of ancestors into consideration.

Jörg

smacdonald2008​

My approach is I get component resource by resourceType after I get InheritanceValueMap of the component. I have a problem when I get InheritanceValueMap, I don't get child node properties.

I think if multifield save by JSON array, I can get the inheritance of multifield properties.

@Model(adaptables = { SlingHttpServletRequest.class, Resource.class }, adapters = { FooterModel.class,
ComponentExporter.class }, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL, resourceType = FooterModelImpl.RESOURCE_TYPE)
@Exporters({
@Exporter(name = ExporterConstants.SLING_MODEL_EXPORTER_NAME, extensions = ExporterConstants.SLING_MODEL_EXTENSION) })
public class FooterModelImpl implements FooterModel {
     protected static final String RESOURCE_TYPE = "myproject/components/structure/footer/v1/footer";
     protected static final String COLUMN_RESOURCE_TYPE = "myproject/components/content/column/v1/column";
     protected static final String LIST_OF_LINKS_RESOURCE_TYPE = "myproject/components/content/listOfLinks/v1/listOfLinks";
     @Self
     private SlingHttpServletRequest request;
     @SlingObject
     private ResourceResolver resourceResolver;
     @SlingObject
     private Resource resource;
     private String hello;
     private Map<String, Object> map;
     @PostConstruct
     private void initModel() {
          hello = "Hello Footer";
          map = new HashMap<>();
          Iterator<Resource> columnResourceIterator = getListResourceByResourceType(resource.getPath(),
          COLUMN_RESOURCE_TYPE, resourceResolver);
          if (columnResourceIterator != null) {
               while (columnResourceIterator.hasNext()) {
                    Resource columnItemResource = columnResourceIterator.next();
                    if (columnItemResource != null) {
                         map.put(columnItemResource.getName(), getListOfLinksContent(columnItemResource));
                    }
               }
          }
     }
     private Map<String, Object> getListOfLinksContent(Resource columnResource) {
          Map<String, Object> map = new HashMap<>();
          Iterator<Resource> listOfLinksResources = getListOfLinksResources(columnResource.getPath());
          List<ListOfLinks> list = new ArrayList<>();
          while (listOfLinksResources.hasNext()) {
               Resource element = listOfLinksResources.next();
               ListOfLinks listOfLinks = getListOfLinksFromResource(element);
               list.add(listOfLinks);
          }
          map.put("listoflinks", list);
          return map;
     }
     private Iterator<Resource> getListOfLinksResources(String path) {
          return getListResourceByResourceType(path, LIST_OF_LINKS_RESOURCE_TYPE, resourceResolver);
     }
     private ListOfLinks getListOfLinksFromResource(Resource resource) {
          ListOfLinks listOfLinks = new ListOfLinks();
          InheritanceValueMap inheritanceMap = new HierarchyNodeInheritanceValueMap(resource);
          listOfLinks.setTitle(inheritanceMap.getInherited("title", StringUtils.EMPTY));
          listOfLinks.setNumberOrder(inheritanceMap.getInherited("order", StringUtils.EMPTY));
          listOfLinks.setLinks(getListLinkFromIteratorResource(getIteratorResourceFromResource(resource)));
          return listOfLinks;
     }
     private Iterator<Resource> getIteratorResourceFromResource(Resource resource) {
          // Save data to JSON array
          Resource items = resource.getResourceResolver().getResource(resource.getPath() + "/items");
          return items != null ? items.listChildren() : null;
     }
     private List<Link> getListLinkFromIteratorResource(Iterator<Resource> iterator) {
          List<Link> links = new ArrayList<>();
          while (iterator.hasNext()) {
               Resource linkResource = iterator.next();
               Link link = getLinkFromResource(linkResource);
               links.add(link);
          }
          return links;
     }
     private Link getLinkFromResource(Resource resource) {
          InheritanceValueMap inheritanceMap = new HierarchyNodeInheritanceValueMap(resource);
          return new Link(inheritanceMap.getInherited("label", StringUtils.EMPTY),
               inheritanceMap.getInherited("url", StringUtils.EMPTY));
     }
     private static Iterator<Resource> getListResourceByResourceType(String path, String resourceType,
          ResourceResolver resolver) {
          if (resolver == null) {
               return null;
          }
          String sql = "SELECT * FROM [nt:unstructured] AS s WHERE ISDESCENDANTNODE([" + path + "]) "
               + "AND s.[sling:resourceType] = '" + resourceType + "'";
          return resolver.findResources(sql, Query.JCR_SQL2);
     }
     public String getHello() {
          return hello;
     }
     public Map<String, Object> getItems() {
          return map;
     }
     class ListOfLinks {
          private String title;
          private String numberOrder;
          private List<Link> links;
          public String getTitle() {
               return title;
          }
          public void setTitle(String title) {
               this.title = title;
          }
          public String getNumberOrder() {
               return numberOrder;
          }
          public void setNumberOrder(String numberOrder) {
               this.numberOrder = numberOrder;
          }
          public List<Link> getLinks() {
               return links;
          }
          public void setLinks(List<Link> links) {
               this.links = links;
          }
     }
     class Link {
          private String label;
          private String url;
          public Link(String label, String url) {
               this.label = label;
               this.url = url;
          }
          public String getLabel() {
               return label;
          }
          public void setLabel(String label) {
               this.label = label;
          }
          public String getUrl() {
               return url;
          }
          public void setUrl(String url) {
               this.url = url;
          }
     }
}