private Entity getRandomEntity(final String pluginIdentifier, final String modelName) {
SearchCriteriaBuilder searchBuilder =
dataDefinitionService.get(pluginIdentifier, modelName).find();
int totalNumberOfEntities = searchBuilder.list().getTotalNumberOfEntities();
return searchBuilder
.setMaxResults(1)
.setFirstResult(RANDOM.nextInt(totalNumberOfEntities))
.uniqueResult();
}
@Override
public long count(final SearchCriterion criterion) {
final String countAlias = "count";
SearchCriteriaBuilder scb = find();
if (criterion != null) {
scb.add(criterion);
}
scb.setProjection(alias(rowCount(), countAlias));
scb.addOrder(asc(countAlias));
Entity countProjection = scb.setMaxResults(1).uniqueResult();
return (Long) countProjection.getField(countAlias);
}
protected String getRandomDictionaryItem(final String dictionaryName) {
Entity dictionary = getDictionaryByName(dictionaryName);
SearchCriteriaBuilder searchBuilder =
dataDefinitionService
.get("qcadooModel", "dictionaryItem")
.find()
.add(SearchRestrictions.belongsTo("dictionary", dictionary));
int total = searchBuilder.list().getTotalNumberOfEntities();
return searchBuilder
.setMaxResults(1)
.setFirstResult(RANDOM.nextInt(total))
.uniqueResult()
.getField(NAME)
.toString();
}