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61 changes: 61 additions & 0 deletions
61
...nate-core/src/main/java/org/hibernate/dialect/function/array/OracleArrayTrimFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /* | ||
| * 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.dialect.function.array; | ||
|
|
||
| import java.util.List; | ||
|
|
||
| import org.hibernate.query.ReturnableType; | ||
| import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor; | ||
| import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator; | ||
| import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators; | ||
| import org.hibernate.query.sqm.produce.function.StandardFunctionArgumentTypeResolvers; | ||
| import org.hibernate.sql.ast.SqlAstTranslator; | ||
| import org.hibernate.sql.ast.spi.SqlAppender; | ||
| import org.hibernate.sql.ast.tree.SqlAstNode; | ||
| import org.hibernate.sql.ast.tree.expression.Expression; | ||
|
|
||
| import static org.hibernate.query.sqm.produce.function.FunctionParameterType.ANY; | ||
| import static org.hibernate.query.sqm.produce.function.FunctionParameterType.INTEGER; | ||
|
|
||
| /** | ||
| * Oracle array_trim function. | ||
| */ | ||
| public class OracleArrayTrimFunction extends AbstractSqmSelfRenderingFunctionDescriptor { | ||
|
|
||
| public OracleArrayTrimFunction() { | ||
| super( | ||
| "array_trim", | ||
| StandardArgumentsValidators.composite( | ||
| new ArgumentTypesValidator( null, ANY, INTEGER ), | ||
| ArrayArgumentValidator.DEFAULT_INSTANCE | ||
| ), | ||
| ArrayViaArgumentReturnTypeResolver.DEFAULT_INSTANCE, | ||
| StandardFunctionArgumentTypeResolvers.composite( | ||
| StandardFunctionArgumentTypeResolvers.invariant( ANY, INTEGER ), | ||
| StandardFunctionArgumentTypeResolvers.IMPLIED_RESULT_TYPE | ||
| ) | ||
| ); | ||
| } | ||
|
|
||
| @Override | ||
| public void render( | ||
| SqlAppender sqlAppender, | ||
| List<? extends SqlAstNode> sqlAstArguments, | ||
| ReturnableType<?> returnType, | ||
| SqlAstTranslator<?> walker) { | ||
| final String arrayTypeName = DdlTypeHelper.getTypeName( | ||
| ( (Expression) sqlAstArguments.get( 0 ) ).getExpressionType(), | ||
| walker | ||
| ); | ||
| sqlAppender.append( arrayTypeName ); | ||
| sqlAppender.append( "_trim(" ); | ||
| sqlAstArguments.get( 0 ).accept( walker ); | ||
| sqlAppender.append( ',' ); | ||
| sqlAstArguments.get( 1 ).accept( walker ); | ||
| sqlAppender.append( ')' ); | ||
| } | ||
| } |
99 changes: 99 additions & 0 deletions
99
hibernate-core/src/test/java/org/hibernate/orm/test/function/array/ArrayTrimTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * 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.function.array; | ||
|
|
||
| import java.sql.SQLException; | ||
| import java.util.List; | ||
|
|
||
| import org.hibernate.cfg.AvailableSettings; | ||
|
|
||
| import org.hibernate.testing.orm.junit.DialectFeatureChecks; | ||
| import org.hibernate.testing.orm.junit.DomainModel; | ||
| import org.hibernate.testing.orm.junit.RequiresDialectFeature; | ||
| import org.hibernate.testing.orm.junit.ServiceRegistry; | ||
| import org.hibernate.testing.orm.junit.SessionFactory; | ||
| import org.hibernate.testing.orm.junit.SessionFactoryScope; | ||
| import org.hibernate.testing.orm.junit.Setting; | ||
| import org.junit.jupiter.api.AfterEach; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
|
|
||
| import jakarta.persistence.PersistenceException; | ||
| import jakarta.persistence.Tuple; | ||
|
|
||
| import static org.junit.jupiter.api.Assertions.assertArrayEquals; | ||
| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
| import static org.junit.jupiter.api.Assertions.assertInstanceOf; | ||
| import static org.junit.jupiter.api.Assertions.fail; | ||
|
|
||
| /** | ||
| * @author Christian Beikov | ||
| */ | ||
| @DomainModel(annotatedClasses = EntityWithArrays.class) | ||
| @SessionFactory | ||
| @RequiresDialectFeature( feature = DialectFeatureChecks.SupportsStructuralArrays.class) | ||
| // Make sure this stuff runs on a dedicated connection pool, | ||
| // otherwise we might run into ORA-21700: object does not exist or is marked for delete | ||
| // because the JDBC connection or database session caches something that should have been invalidated | ||
| @ServiceRegistry(settings = @Setting(name = AvailableSettings.CONNECTION_PROVIDER, value = "")) | ||
| public class ArrayTrimTest { | ||
|
|
||
| @BeforeEach | ||
| public void prepareData(SessionFactoryScope scope) { | ||
| scope.inTransaction( em -> { | ||
| em.persist( new EntityWithArrays( 1L, new String[]{} ) ); | ||
| em.persist( new EntityWithArrays( 2L, new String[]{ "abc", null, "def" } ) ); | ||
| em.persist( new EntityWithArrays( 3L, null ) ); | ||
| } ); | ||
| } | ||
|
|
||
| @AfterEach | ||
| public void cleanup(SessionFactoryScope scope) { | ||
| scope.inTransaction( em -> { | ||
| em.createMutationQuery( "delete from EntityWithArrays" ).executeUpdate(); | ||
| } ); | ||
| } | ||
|
|
||
| @Test | ||
| public void testTrimOne(SessionFactoryScope scope) { | ||
| scope.inSession( em -> { | ||
| //tag::hql-array-trim-example[] | ||
| List<Tuple> results = em.createQuery( "select e.id, array_trim(e.theArray, 1) from EntityWithArrays e where e.id = 2", Tuple.class ) | ||
| .getResultList(); | ||
| //end::hql-array-trim-example[] | ||
| assertEquals( 1, results.size() ); | ||
| assertEquals( 2L, results.get( 0 ).get( 0 ) ); | ||
| assertArrayEquals( new String[] { "abc", null }, results.get( 0 ).get( 1, String[].class ) ); | ||
| } ); | ||
| } | ||
|
|
||
| @Test | ||
| public void testTrimAll(SessionFactoryScope scope) { | ||
| scope.inSession( em -> { | ||
| List<Tuple> results = em.createQuery( "select e.id, array_trim(e.theArray, 3) from EntityWithArrays e where e.id = 2", Tuple.class ) | ||
| .getResultList(); | ||
| assertEquals( 1, results.size() ); | ||
| assertEquals( 2L, results.get( 0 ).get( 0 ) ); | ||
| assertArrayEquals( new String[0], results.get( 0 ).get( 1, String[].class ) ); | ||
| } ); | ||
| } | ||
|
|
||
| @Test | ||
| public void testTrimOutOfRange(SessionFactoryScope scope) { | ||
| scope.inSession( em -> { | ||
| try { | ||
| em.createQuery( "select array_trim(e.theArray, 1) from EntityWithArrays e where e.id = 1" ) | ||
| .getResultList(); | ||
| fail( "Should fail because array is too small to trim!" ); | ||
| } | ||
| catch (PersistenceException ex) { | ||
| assertInstanceOf( SQLException.class, ex.getCause() ); | ||
| } | ||
| } ); | ||
| } | ||
|
|
||
| } |