public TypedQuery<X> setParameter(Parameter<Date> param, Date value, TemporalType temporalType) {
if (!parameters.contains(param)) {
throw new IllegalArgumentException("Specified parameter was not found in query");
}
if (param.getName() != null) {
// a named param, for not delegate out. Eventually delegate *into* this method...
setParameter(param.getName(), value, temporalType);
} else {
setParameter(param.getPosition(), value, temporalType);
}
return this;
}
private void setQueryParameters(Query query, SearchParameters sp) {
// add default parameter if specified in the named query
for (Parameter<?> p : query.getParameters()) {
if (NAMED_PARAMETER_CURRENT_USER_ID.equals(p.getName())) {
query.setParameter(NAMED_PARAMETER_CURRENT_USER_ID, UserContext.getId());
} else if (NAMED_PARAMETER_NOW.equals(p.getName())) {
query.setParameter(NAMED_PARAMETER_NOW, Calendar.getInstance().getTime());
}
}
// add parameters for the named query
for (String paramName : sp.getNamedQueryParameters().keySet()) {
query.setParameter(paramName, sp.getNamedQueryParameter(paramName));
}
}
/**
* Returns whether the given {@link Query} contains named parameters.
*
* @param query
* @return
*/
public static boolean hasNamedParameter(Query query) {
for (Parameter<?> parameter : query.getParameters()) {
if (parameter.getName() != null) {
return true;
}
}
return false;
}
protected <X> ParameterRegistration<X> findParameterRegistration(Parameter<X> parameter) {
if (ParameterRegistration.class.isInstance(parameter)) {
final ParameterRegistration<X> reg = (ParameterRegistration<X>) parameter;
// validate the parameter source
if (reg.getQuery() != this) {
throw new IllegalArgumentException("Passed Parameter was from different Query");
}
return reg;
} else {
if (parameter.getName() != null) {
return findParameterRegistration(parameter.getName());
} else if (parameter.getPosition() != null) {
return findParameterRegistration(parameter.getPosition());
}
}
throw new IllegalArgumentException(
"Unable to resolve incoming parameter [" + parameter + "] to registration");
}
/** {@inheritDoc} */
public Parameter<?> getParameter(String name) {
if (name == null) {
throw new IllegalArgumentException("Name of parameter to locate cannot be null");
}
for (Parameter parameter : parameters) {
if (name.equals(parameter.getName())) {
return parameter;
}
}
throw new IllegalArgumentException("Unable to locate parameter named [" + name + "]");
}
/**
* Returns whether the given {@link Query} contains named parameters.
*
* @param query
* @return
*/
public static boolean hasNamedParameter(Query query) {
for (Parameter<?> parameter : query.getParameters()) {
String name = parameter.getName();
// Hibernate 3 specific hack as it returns the index as String for the name.
if (name != null && NO_DIGITS.matcher(name).find()) {
return true;
}
}
return false;
}
@Test
public void testNamedParameterMetadata() {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
CriteriaQuery<MultiTypedBasicAttributesEntity> criteria =
em.getCriteriaBuilder().createQuery(MultiTypedBasicAttributesEntity.class);
Root<MultiTypedBasicAttributesEntity> rootEntity =
criteria.from(MultiTypedBasicAttributesEntity.class);
criteria.where(
em.getCriteriaBuilder()
.equal(
rootEntity.get(MultiTypedBasicAttributesEntity_.id),
em.getCriteriaBuilder().parameter(Long.class, "id")));
TypedQuery<MultiTypedBasicAttributesEntity> query = em.createQuery(criteria);
Parameter parameter = query.getParameter("id");
assertEquals("id", parameter.getName());
em.getTransaction().commit();
em.close();
}
