/**
* Método utilizado para criar o objeto Example. Este objeto é utilizado para realizar a busca por
* exemplo.
*
* @param objeto sobre o qual o Example será criado
* @return em objeto do tipo Example
*/
public final Example criarExemplo(T objeto) {
Example example = Example.create(objeto);
example.enableLike(MatchMode.ANYWHERE);
example.excludeZeroes();
example.ignoreCase();
return example;
}
@SuppressWarnings("unchecked")
public List<T> findByExample(T exampleInstance, String[] excludeProperty) {
String[] exclude = (excludeProperty != null) ? excludeProperty : excludeDefault;
Criteria crit = getSession().createCriteria(persistentClass);
Example example = Example.create(exampleInstance);
example.enableLike();
example.ignoreCase();
for (String ex : exclude) {
example.excludeProperty(ex);
}
crit.add(example);
return crit.list();
}
public PaginatedList<Keyword> findKeywords(
Keyword keyword,
final boolean ignoreCase,
final Order order,
final Integer firstResult,
final Integer maxResults)
throws IllegalArgumentException {
if (keyword == null) {
throw new IllegalArgumentException("keyword cannot be null");
}
final MatchMode matchMode = MatchMode.ANYWHERE;
Example criterionKeyword = Example.create(keyword);
criterionKeyword.enableLike(matchMode);
if (ignoreCase) {
criterionKeyword.ignoreCase();
}
// Normally, Hibernate performs a left-outer join, when searching for
// an object with collections using Criteria. This returns a ResultSet
// that contains duplicate objects. In order to get a unique list of
// Keywords with paginated support, we need to a nested query to find
// distinct matching ids, then get the Keywords. The end result is a
// subselect in the main query, but only one query is sent.
DetachedCriteria dc = DetachedCriteria.forClass(Keyword.class);
dc.add(criterionKeyword);
dc.setResultTransformer(DISTINCT_ROOT_ENTITY);
Conjunction conjunction =
createTranslationConditions(keyword.getTranslations(), ignoreCase, matchMode);
if (conjunction != null) dc.createCriteria(FIELD_TRANSLATIONS).add(conjunction);
dc.setProjection(Projections.id());
Criteria criteria = getSession().createCriteria(Keyword.class);
criteria.add(Subqueries.propertyIn(FIELD_ID, dc));
if (Order.desc == order) criteria.addOrder(desc(FIELD_KEYWORD));
else criteria.addOrder(asc(FIELD_KEYWORD));
if (firstResult != null) criteria.setFirstResult(firstResult);
if (maxResults != null) criteria.setMaxResults(maxResults);
final List<Keyword> criteriaList = criteria.list();
int maxListSize = 0;
if (criteriaList.size() > 0) {
maxListSize = calculateMaxListSize(criterionKeyword, conjunction);
}
return new PaginatedList<Keyword>(criteriaList, maxListSize);
}
/**
* Create the search criteria for a {@link Translation}.
*
* @param translations the translation to add to the criteria
* @param ignoreCase flag indicating if case should be ignored during search
* @param matchMode flag indicating the type of string pattern matching
* @return the additional search parameters for the {@link Translation} fields
*/
private Conjunction createTranslationConditions(
SortedSet<Translation> translations, final boolean ignoreCase, final MatchMode matchMode) {
Conjunction conjunction = null;
if (translations != null && !translations.isEmpty()) {
final Translation translation = translations.first();
Example criterionTranslation = Example.create(translation);
criterionTranslation.enableLike(matchMode);
if (ignoreCase) {
criterionTranslation.ignoreCase();
}
conjunction = conjunction();
conjunction.add(criterionTranslation);
addBundleCriteria(conjunction, translation.getBundle());
addCountryCriteria(conjunction, translation.getCountry());
addLanguageCriteria(conjunction, translation.getLanguage());
}
return conjunction;
}
