子句中的 Java 谓词？

问题描述

我有以下查询：

select distinct * from folder_persons
where folder_id = 68652
AND person_id in 
(select person_id from submissions where submissions.person_id = folder_persons.person_id AND submissions.date_applied >= folder_persons.created_date);

我可以在 Java find 中将此作为本机查询编写，但我想使用谓词来编写它，我该怎么做？

以下是我目前所拥有的：

//test data for list
Submission submission = new Submission();
submission.setPersonId(123);

List<Submission> submissions = new ArrayList<>();
submissions.add(submission);

try {

CriteriaBuilder builder = entityManager.getCriteriaBuilder();
Root<FolderPersons> from = query.from(FolderPersons.class);
                
//todo - how to create predicate for lines below?
Expression<String> inExpression = from.get();
Predicate inPredicate = inExpression.in(submissions);
    
CriteriaQuery<FolderPersons> selectQuery = query.select(from)
.where(builder.and(builder.equal(from.get(FOLDER_ID),folderId),inPredicate));
    
return entityManager.createquery(selectQuery).getResultList();

}catch...

解决方法

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