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https://issues.apache.org/jira/browse/OPENJPA-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198966#comment-13198966
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Oliver Gierke commented on OPENJPA-2018:
----------------------------------------
It does not seem to work with collections as well:
CriteriaBuilder builder = em.getCriteriaBuilder();
CriteriaQuery<User> criteriaQuery = builder.createQuery(User.class);
Root<User> root = criteriaQuery.from(User.class);
criteriaQuery.where(root.<Integer>
get("id").in(builder.parameter(Collection.class)));
TypedQuery<User> query = em.createQuery(criteriaQuery);
for (Parameter parameter : query.getParameters()) {
query.setParameter(parameter, Arrays.asList(1, 2));
}
List<User> resultList = query.getResultList();
This fails with:
<openjpa-2.0.0-r422266:935683 nonfatal user error>
org.apache.openjpa.persistence.ArgumentException: Filter invalid. Cannot
compare field id of type java.lang.Integer to value of type
java.util.Collection. Numeric comparisons must be between numeric types only.
To enable such comparisons for backwards-compatibility, add
"QuotedNumbersInQueries=true" to the org.apache.openjpa.Compatibility setting
in your configuration.
Tried against 2.0 as well as 2.1. Don't quite get why OpenJPA tries to compare
the integer against the collection instead of its values.
> Cannot bind String[] to ParameterExpression for path.in(parameter)
> ------------------------------------------------------------------
>
> Key: OPENJPA-2018
> URL: https://issues.apache.org/jira/browse/OPENJPA-2018
> Project: OpenJPA
> Issue Type: Bug
> Components: jpa
> Affects Versions: 2.1.0
> Reporter: Oliver Gierke
> Assignee: Michael Dick
> Labels: binding, criteria_api, jpa
>
> Given the following code:
> {code}
> User user = new User("Dave", "Matthews", "f...@bar.de");
> em.persist(user);
> em.flush();
> CriteriaBuilder builder = em.getCriteriaBuilder();
> CriteriaQuery<User> criteria = builder.createQuery(User.class);
> Root<User> root = criteria.from(User.class);
> criteria.where(root.get("firstname").in(builder.parameter(String[].class)));
> TypedQuery<User> query = em.createQuery(criteria);
> for (ParameterExpression parameter : criteria.getParameters()) {
> query.setParameter(parameter, new String[] {"Dave", "Carter"});
> }
> List<User> result = query.getResultList();
> assertThat(result.isEmpty(), is(false));
> {code}
> I get a
> {code}
> <openjpa-2.0.0-r422266:935683 nonfatal user error>
> org.apache.openjpa.persistence.ArgumentException: The specified parameter of
> type "class [Ljava.lang.String;" is not a valid query parameter.
> {code}
> Using {{Collection}} as {{ParameterExpression}} type and binding the
> parameters via {{Arrays.asList(...)}} works fine.
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