associations-impl1.java

private static List<String> ASSOC_NAMES_TO_EXTRACT = Arrays.asList(new String[]{"imageRef","thumbnailRef"});
/**
 * Gets a list of associations of type my:imageRef and my:thumbnailRef, given an Alfresco node;
 * Implementation is not optimal
 * @param nodeRef The Alfresco NodeRef that contains the associations we want to extract
 * @return a List of associations of type my:imageRef and my:thumbnailRef
 */
public List<AssociationRef> getAssociations(NodeRef nodeRef) {
  List<AssociationRef> associations = serviceRegistry.getNodeService().getTargetAssocs(nodeRef, RegexQNamePattern.MATCH_ALL);
  List<AssociationRef> toReturn = new ArrayList<AssociationRef>();
  // extract only my:imageRef and my:thumbnailRef assocs
  for(AssociationRef association : associations) {
    QName assocQname = association.getTypeQName();
    if (ASSOC_NAMES_TO_EXTRACT.contains(assocQname.getLocalName())) {
      toReturn.add(association);
    }
  }
  return toReturn;
}

associations-impl2.java

private static final RegexQNamePattern IMAGE_ASSOCIATIONS = new RegexQNamePattern(
    ".*thumbnailRef$|.*imageRef$");
/**
 * Gets a list of associations of type my:imageRef and my:thumbnailRef, given an Alfresco node;
 * @param nodeRef The Alfresco NodeRef that contains the associations we want to extract
 * @return a List of associations of type my:imageRef and my:thumbnailRef
 */
public List<AssociationRef> getAssociations(NodeRef nodeRef) {
  return serviceRegistry.getNodeService().getTargetAssocs(nodeRef, IMAGE_ASSOCIATIONS);
}

associations-impl3.java

/**
 * I am assuming that your custom Alfresco contentModel defines the following namespace
 * <namespace uri="http:/session.it/alfresco/model/content/1.0" prefix="my"/>
 */
static final RegexQNamePattern ALL_MY_ASSOCIATIONS = 
new RegexQNamePattern("^\\{http:\\/session.it\\/alfresco\\/model\\/content\\/1.0\\}.*");