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6 - SQM based on JPA type system 

- SQM tests
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Steve Ebersole 2019-07-26 15:24:33 -05:00 committed by Andrea Boriero
parent 62b98712d4
commit ac93c1d213
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hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/WhereClauseTests.java Normal file
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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.hql;
import org.hibernate.orm.test.query.sqm.BaseSqmUnitTest;
import org.hibernate.orm.test.query.sqm.domain.Person;
import org.hibernate.query.ComparisonOperator;
import org.hibernate.query.sqm.tree.domain.SqmPath;
import org.hibernate.query.sqm.tree.expression.SqmCollectionSize;
import org.hibernate.query.sqm.tree.expression.SqmLiteral;
import org.hibernate.query.sqm.tree.predicate.SqmNullnessPredicate;
import org.hibernate.query.sqm.tree.predicate.SqmComparisonPredicate;
import org.hibernate.query.sqm.tree.predicate.SqmPredicate;
import org.hibernate.query.sqm.tree.select.SqmSelectStatement;
import org.hibernate.testing.orm.domain.gambit.EntityOfLists;
import org.hibernate.testing.orm.domain.gambit.EntityOfMaps;
import org.hibernate.testing.orm.domain.gambit.EntityOfSets;
import org.junit.jupiter.api.Test;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.MatcherAssert.assertThat;
/**
* Tests for elements of WHERE clauses.
*
* @author Gunnar Morling
*/
@SuppressWarnings("WeakerAccess")
public class WhereClauseTests extends BaseSqmUnitTest {
@Override
protected Class[] getAnnotatedClasses() {
return new Class[] {
Person.class,
EntityOfLists.class,
EntityOfSets.class,
EntityOfMaps.class,
};
}
@Test
public void testIsNotNullPredicate() {
SqmSelectStatement statement = interpretSelect( "select l from Person l where l.nickName is not null" );
assertThat( statement.getQuerySpec().getWhereClause().getPredicate(), instanceOf( SqmNullnessPredicate.class ) );
SqmNullnessPredicate predicate = (SqmNullnessPredicate) statement.getQuerySpec().getWhereClause().getPredicate();
assertThat( predicate.isNegated(), is(true) );
}
@Test
public void testNotIsNullPredicate() {
SqmSelectStatement statement = interpretSelect( "select l from Person l where not l.nickName is null" );
assertThat( statement.getQuerySpec().getWhereClause().getPredicate(), instanceOf( SqmNullnessPredicate.class ) );
SqmNullnessPredicate predicate = (SqmNullnessPredicate) statement.getQuerySpec().getWhereClause().getPredicate();
assertThat( predicate.isNegated(), is(true) );
}
@Test
public void testNotIsNotNullPredicate() {
SqmSelectStatement statement = interpretSelect( "select l from Person l where not l.nickName is not null" );
assertThat( statement.getQuerySpec().getWhereClause().getPredicate(), instanceOf( SqmNullnessPredicate.class ) );
SqmNullnessPredicate predicate = (SqmNullnessPredicate) statement.getQuerySpec().getWhereClause().getPredicate();
assertThat( predicate.isNegated(), is(false) );
}
@Test
public void testCollectionSizeFunction() {
SqmSelectStatement statement = interpretSelect( "SELECT t FROM EntityOfSets t WHERE SIZE( t.setOfBasics ) = 311" );
SqmPredicate predicate = statement.getQuerySpec().getWhereClause().getPredicate();
assertThat( predicate, instanceOf( SqmComparisonPredicate.class ) );
SqmComparisonPredicate relationalPredicate = ( (SqmComparisonPredicate) predicate );
assertThat( relationalPredicate.getSqmOperator(), is( ComparisonOperator.EQUAL ) );
assertThat( relationalPredicate.getRightHandExpression(), instanceOf( SqmLiteral.class ) );
assertThat( ( (SqmLiteral) relationalPredicate.getRightHandExpression() ).getLiteralValue(), is( 311 ) );
assertThat( relationalPredicate.getLeftHandExpression(), instanceOf( SqmCollectionSize.class ) );
final SqmCollectionSize func = (SqmCollectionSize) relationalPredicate.getLeftHandExpression();
assertThat( func.getPluralPath().getLhs().getExplicitAlias(), is( "t" ) );
assertThat( func.getPluralPath().getReferencedPathSource().getPathName(), is( "setOfBasics" ) );
}
@Test
public void testListIndexFunction() {
SqmSelectStatement statement = interpretSelect( "select l from EntityOfLists t join t.listOfBasics l where index(l) > 2" );
SqmPredicate predicate = statement.getQuerySpec().getWhereClause().getPredicate();
assertThat( predicate, instanceOf( SqmComparisonPredicate.class ) );
SqmComparisonPredicate relationalPredicate = ( (SqmComparisonPredicate) predicate );
assertThat( relationalPredicate.getSqmOperator(), is( ComparisonOperator.GREATER_THAN ) );
assertThat( relationalPredicate.getRightHandExpression(), instanceOf( SqmLiteral.class ) );
assertThat( ( (SqmLiteral) relationalPredicate.getRightHandExpression() ).getLiteralValue(), is( 2 ) );
assertThat( relationalPredicate.getLeftHandExpression(), instanceOf( SqmPath.class ) );
final SqmPath indexPath = (SqmPath) relationalPredicate.getLeftHandExpression();
assertThat( indexPath.getLhs(), notNullValue() );
assertThat( indexPath.getLhs().getExplicitAlias(), is( "l" ) );
}
}