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HHH-13154 Backport BasicCriteriaExecutionTests from ORM 6
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...core/src/test/java/org/hibernate/orm/test/query/criteria/BasicCriteriaExecutionTests.java
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/* | ||
* Hibernate, Relational Persistence for Idiomatic Java | ||
* | ||
* License: GNU Lesser General Public License (LGPL), version 2.1 or later | ||
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html | ||
*/ | ||
package org.hibernate.orm.test.query.criteria; | ||
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import javax.persistence.Entity; | ||
import javax.persistence.GeneratedValue; | ||
import javax.persistence.Id; | ||
import javax.persistence.criteria.CriteriaBuilder; | ||
import javax.persistence.criteria.CriteriaQuery; | ||
import javax.persistence.criteria.ParameterExpression; | ||
import javax.persistence.criteria.Root; | ||
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import org.hibernate.testing.junit4.BaseNonConfigCoreFunctionalTestCase; | ||
import org.junit.Test; | ||
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/** | ||
* @author Steve Ebersole | ||
*/ | ||
public class BasicCriteriaExecutionTests extends BaseNonConfigCoreFunctionalTestCase { | ||
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@Override | ||
protected Class[] getAnnotatedClasses() { | ||
return new Class[] { BasicEntity.class }; | ||
} | ||
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@Test | ||
public void testExecutingBasicCriteriaQuery() { | ||
final CriteriaBuilder criteriaBuilder = sessionFactory().getCriteriaBuilder(); | ||
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final CriteriaQuery<Object> criteria = criteriaBuilder.createQuery(); | ||
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final Root<BasicEntity> root = criteria.from( BasicEntity.class ); | ||
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criteria.select( root ); | ||
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inSession( | ||
session -> session.createQuery( criteria ).list() | ||
); | ||
} | ||
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@Test | ||
public void testExecutingBasicCriteriaQueryLiteralPredicate() { | ||
final CriteriaBuilder criteriaBuilder = sessionFactory().getCriteriaBuilder(); | ||
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final CriteriaQuery<Object> criteria = criteriaBuilder.createQuery(); | ||
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final Root<BasicEntity> root = criteria.from( BasicEntity.class ); | ||
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criteria.select( root ); | ||
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criteria.where( criteriaBuilder.equal( criteriaBuilder.literal( 1 ), criteriaBuilder.literal( 1 ) ) ); | ||
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inSession( | ||
session -> session.createQuery( criteria ).list() | ||
); | ||
} | ||
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@Test | ||
public void testExecutingBasicCriteriaQueryParameterPredicate() { | ||
final CriteriaBuilder criteriaBuilder = sessionFactory().getCriteriaBuilder(); | ||
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final CriteriaQuery<Object> criteria = criteriaBuilder.createQuery(); | ||
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final Root<BasicEntity> root = criteria.from( BasicEntity.class ); | ||
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criteria.select( root ); | ||
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final ParameterExpression<Integer> param = criteriaBuilder.parameter( Integer.class ); | ||
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criteria.where( criteriaBuilder.equal( param, param ) ); | ||
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inSession( | ||
session -> session.createQuery( criteria ).setParameter( param, 1 ).list() | ||
); | ||
} | ||
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@Entity | ||
public static class BasicEntity { | ||
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@Id | ||
@GeneratedValue | ||
private Integer id; | ||
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} | ||
} |