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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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package org.apache.openjpa.persistence.query;
import javax.persistence.EntityManager;
import javax.persistence.Parameter;
import javax.persistence.Query;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.ParameterExpression;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.QueryBuilder;
import javax.persistence.criteria.Root;
import javax.persistence.metamodel.EntityType;
import javax.persistence.metamodel.Metamodel;
import javax.persistence.metamodel.SingularAttribute;
import org.apache.openjpa.kernel.QueryLanguages;
import org.apache.openjpa.kernel.jpql.JPQLParser;
import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI;
import org.apache.openjpa.persistence.OpenJPAPersistence;
import org.apache.openjpa.persistence.ParameterImpl;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
/**
* Tests query parameters.
*
* @author Pinaki Poddar
*
*/
public class TestQueryParameters extends SingleEMFTestCase {
private static OpenJPAEntityManagerFactorySPI oemf;
private EntityManager em;
public void setUp() {
if (oemf == null) {
super.setUp(SimpleEntity.class, "openjpa.DynamicEnhancementAgent", "false");
oemf = (OpenJPAEntityManagerFactorySPI)OpenJPAPersistence.cast(emf);
}
em = oemf.createEntityManager();
}
public void tearDown() {
// do not close the factory
}
public void testPositionalParameterInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=?1 and e.name=?2";
Query q = em.createQuery(jpql)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertEquals(2, q.getParameters().size());
Parameter<?> param1 = q.getParameter(1);
Parameter<?> param2 = q.getParameter(2);
assertEquals(100, q.getParameterValue(1));
assertEquals(100, q.getParameterValue(param1));
assertEquals("XYZ", q.getParameterValue(2));
assertEquals("XYZ", q.getParameterValue(param2));
q.getResultList();
}
public void testNamedParameterInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=:id and e.name=:name";
Query q = em.createQuery(jpql)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertEquals(2, q.getParameters().size());
Parameter<?> param1 = q.getParameter("id");
Parameter<?> param2 = q.getParameter("name");
assertEquals(100, q.getParameterValue("id"));
assertEquals(100, q.getParameterValue(param1));
assertEquals("XYZ", q.getParameterValue("name"));
assertEquals("XYZ", q.getParameterValue(param2));
q.getResultList();
}
public void testPositionalParameterMissingInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=?1 and e.name=?2";
Query q = em.createQuery(jpql)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertSetParameterFails(q, 3, 100); // wrong position
}
public void testNamedParameterMissingInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=:id and e.name=:name";
Query q = em.createQuery(jpql)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertSetParameterFails(q, "xyz", 100); // wrong name
}
public void testPositionalParameterWrongValueInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=?1 and e.name=?2";
Query q = em.createQuery(jpql)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertSetParameterFails(q, 1, "XYZ"); // wrong value
assertSetParameterFails(q, 2, 100); // wrong value
}
public void testNamedParameterWrongValueInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=:id and e.name=:name";
Query q = em.createQuery(jpql)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertSetParameterFails(q, "id", "XYZ"); // wrong value
assertSetParameterFails(q, "name", 100); // wrong value
}
public void testPositionalParameterValueTypeInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=?1 and e.name=?2";
Query q = em.createQuery(jpql)
.setParameter(1, 100)
.setParameter(2, "XYZ");
Parameter<?> param1 = q.getParameter(1);
assertTrue(param1 instanceof ParameterImpl);
assertEquals(long.class, param1.getParameterType());
Parameter<?> param2 = q.getParameter(2);
assertTrue(param2 instanceof ParameterImpl);
assertEquals(String.class, param2.getParameterType());
}
public void testNamedParameterValueTypeInJPQLQuery() {
String jpql = "select e from simple e WHERE e.id=:id and e.name=:name";
Query q = em.createQuery(jpql)
.setParameter("id", 100)
.setParameter("name", "XYZ");
Parameter<?> param1 = q.getParameter("id");
assertTrue(param1 instanceof ParameterImpl);
assertEquals(long.class, param1.getParameterType());
Parameter<?> param2 = q.getParameter("name");
assertTrue(param2 instanceof ParameterImpl);
assertEquals(String.class, param2.getParameterType());
}
public void testNamedParameterInPreparedQuery() {
String jpql = "select x from simple x WHERE x.id=:id and x.name=:name";
Query q = em.createQuery(jpql)
.setParameter("id", 100)
.setParameter("name", "XYZ");
q.getResultList();
assertEquals(JPQLParser.LANG_JPQL, OpenJPAPersistence.cast(q).getLanguage());
Query q2 = em.createQuery(jpql)
.setParameter("id", 200)
.setParameter("name", "ZXY");
assertEquals(QueryLanguages.LANG_PREPARED_SQL, OpenJPAPersistence.cast(q2).getLanguage());
q2.getResultList();
}
//--------------------------------------------------------------------------------------------
// Similar tests with NamedQuery
//--------------------------------------------------------------------------------------------
public void testPositionalParameterInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_POSITIONAL_PARAMS)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertEquals(2, q.getParameters().size());
Parameter<?> param1 = q.getParameter(1);
Parameter<?> param2 = q.getParameter(2);
assertEquals(100, q.getParameterValue(1));
assertEquals(100, q.getParameterValue(param1));
assertEquals("XYZ", q.getParameterValue(2));
assertEquals("XYZ", q.getParameterValue(param2));
q.getResultList();
}
public void testNamedParameterInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_NAMED_PARAMS)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertEquals(2, q.getParameters().size());
Parameter<?> param1 = q.getParameter("id");
Parameter<?> param2 = q.getParameter("name");
assertEquals(100, q.getParameterValue("id"));
assertEquals(100, q.getParameterValue(param1));
assertEquals("XYZ", q.getParameterValue("name"));
assertEquals("XYZ", q.getParameterValue(param2));
q.getResultList();
}
public void testPositionalParameterMissingInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_POSITIONAL_PARAMS)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertSetParameterFails(q, 3, 100); // wrong position
}
public void testNamedParameterMissingInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_NAMED_PARAMS)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertSetParameterFails(q, "xyz", 100); // wrong name
}
public void testPositionalParameterWrongValueInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_POSITIONAL_PARAMS)
.setParameter(1, 100)
.setParameter(2, "XYZ");
assertSetParameterFails(q, 1, "XYZ"); // wrong value
assertSetParameterFails(q, 2, 100); // wrong value
}
public void testNamedParameterWrongValueInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_NAMED_PARAMS)
.setParameter("id", 100)
.setParameter("name", "XYZ");
assertSetParameterFails(q, "id", "XYZ"); // wrong value
assertSetParameterFails(q, "name", 100); // wrong value
}
public void testPositionalParameterValueTypeInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_POSITIONAL_PARAMS)
.setParameter(1, 100)
.setParameter(2, "XYZ");
Parameter<?> param1 = q.getParameter(1);
assertTrue(param1 instanceof ParameterImpl);
assertEquals(long.class, param1.getParameterType());
Parameter<?> param2 = q.getParameter(2);
assertTrue(param2 instanceof ParameterImpl);
assertEquals(String.class, param2.getParameterType());
}
public void testNamedParameterValueTypeInNamedQuery() {
Query q = em.createNamedQuery(SimpleEntity.NAMED_QUERY_WITH_NAMED_PARAMS)
.setParameter("id", 100)
.setParameter("name", "XYZ");
Parameter<?> param1 = q.getParameter("id");
assertTrue(param1 instanceof ParameterImpl);
assertEquals(long.class, param1.getParameterType());
Parameter<?> param2 = q.getParameter("name");
assertTrue(param2 instanceof ParameterImpl);
assertEquals(String.class, param2.getParameterType());
}
public void testCriteriaQueryWithNamedParameter() {
Metamodel model = oemf.getMetamodel();
EntityType<SimpleEntity> entity = model.entity(SimpleEntity.class);
SingularAttribute<SimpleEntity, Long> id =
(SingularAttribute<SimpleEntity, Long>)entity.getSingularAttribute("id");
SingularAttribute<SimpleEntity, String> name =
(SingularAttribute<SimpleEntity, String>)entity.getSingularAttribute("name");
QueryBuilder cb = oemf.getQueryBuilder();
CriteriaQuery<SimpleEntity> c = cb.createQuery(SimpleEntity.class);
Root<SimpleEntity> root = c.from(SimpleEntity.class);
ParameterExpression<Long> param1 = cb.parameter(long.class, "id");
ParameterExpression<String> param2 = cb.parameter(String.class, "name");
Predicate p1 = cb.equal(root.get(id), param1);
Predicate p2 = cb.equal(root.get(name), param2);
c.where(cb.and(p1,p2));
Query q = em.createQuery(c);
assertEquals(2, q.getParameters().size());
assertTrue(q.getParameters().contains(param1));
assertTrue(q.getParameters().contains(param2));
assertNotNull(q.getParameter("id"));
assertNotNull(q.getParameter("name"));
}
public void testCriteriaQueryWithUnnamedParameter() {
Metamodel model = oemf.getMetamodel();
EntityType<SimpleEntity> entity = model.entity(SimpleEntity.class);
SingularAttribute<SimpleEntity, Long> id =
(SingularAttribute<SimpleEntity, Long>)entity.getSingularAttribute("id");
SingularAttribute<SimpleEntity, String> name =
(SingularAttribute<SimpleEntity, String>)entity.getSingularAttribute("name");
QueryBuilder cb = oemf.getQueryBuilder();
CriteriaQuery<SimpleEntity> c = cb.createQuery(SimpleEntity.class);
Root<SimpleEntity> root = c.from(SimpleEntity.class);
ParameterExpression<Long> param1 = cb.parameter(long.class);
ParameterExpression<String> param2 = cb.parameter(String.class);
Predicate p1 = cb.equal(root.get(id), param1);
Predicate p2 = cb.equal(root.get(name), param2);
c.where(cb.and(p1,p2));
Query q = em.createQuery(c);
assertEquals(2, q.getParameters().size());
assertTrue(q.getParameters().contains(param1));
assertTrue(q.getParameters().contains(param2));
}
void assertSetParameterFails(Query q, String name, Object v) {
try {
q.setParameter(name, v);
fail("Expected " + IllegalArgumentException.class.getName());
} catch (IllegalArgumentException e) {
// good
System.err.println("Following is expeceted exception, printing to verify error message");
System.err.println(e);
}
}
void assertSetParameterFails(Query q, int pos, Object v) {
try {
q.setParameter(pos, v);
fail("Expected " + IllegalArgumentException.class.getName());
} catch (IllegalArgumentException e) {
// good
System.err.println("Following is expeceted exception, printing to verify error message");
System.err.println(e);
}
}
}