HHH-6354 ManyToOne natural id binding
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Strong Liu
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1ab72cfdb6
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package org.hibernate.metamodel.internal.source.annotations.entity;
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import java.util.List;
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import javax.persistence.Embeddable;
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import javax.persistence.Embedded;
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import javax.persistence.Entity;
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import javax.persistence.Id;
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import javax.persistence.ManyToOne;
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import org.junit.Test;
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import static org.junit.Assert.*;
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import org.hibernate.annotations.NaturalId;
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import org.hibernate.annotations.NaturalIdCache;
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import org.hibernate.metamodel.spi.binding.EntityBinding;
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import org.hibernate.metamodel.spi.binding.RelationalValueBinding;
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import org.hibernate.metamodel.spi.binding.SingularAttributeBinding;
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import org.hibernate.metamodel.spi.relational.Column;
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import org.hibernate.metamodel.spi.relational.UniqueKey;
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/**
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* @author Strong Liu <stliu@hibernate.org>
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*/
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public class NaturalIdBindingTests extends BaseAnnotationBindingTestCase {
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@Entity
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public class SimpleEntityWithNaturalId {
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@Id
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long id;
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@NaturalId
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String name;
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@NaturalId(mutable = true)
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int age;
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}
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@Test
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@Resources(annotatedClasses = NaturalIdBindingTests.SimpleEntityWithNaturalId.class)
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public void testSimpleNaturalIdAttributeBinding() {
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EntityBinding entityBinding = getEntityBinding( SimpleEntityWithNaturalId.class );
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assertNull( entityBinding.getHierarchyDetails().getNaturalIdCaching() );
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SingularAttributeBinding attributeBinding = (SingularAttributeBinding) entityBinding.locateAttributeBinding(
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"name"
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);
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assertEquals(
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SingularAttributeBinding.NaturalIdMutability.IMMUTABLE,
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attributeBinding.getNaturalIdMutability()
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);
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List<RelationalValueBinding> relationalValueBindings = attributeBinding.getRelationalValueBindings();
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assertEquals( 1, relationalValueBindings.size() );
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RelationalValueBinding relationalValueBinding = relationalValueBindings.get( 0 );
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assertFalse(
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"immutable (by default) natural id should not be included in the update list",
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relationalValueBinding.isIncludeInUpdate()
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);
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Column column = Column.class.cast( relationalValueBinding.getValue() );
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assertFalse( "natural id column should not be nullable", column.isNullable() );
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//-------------------------------------------------------------------------------------------------------
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attributeBinding = (SingularAttributeBinding) entityBinding.locateAttributeBinding(
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"age"
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);
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assertEquals(
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SingularAttributeBinding.NaturalIdMutability.MUTABLE,
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attributeBinding.getNaturalIdMutability()
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);
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relationalValueBindings = attributeBinding.getRelationalValueBindings();
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assertEquals( 1, relationalValueBindings.size() );
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relationalValueBinding = relationalValueBindings.get( 0 );
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assertTrue(
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"mutable natural id should be included in the update list",
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relationalValueBinding.isIncludeInUpdate()
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);
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column = Column.class.cast( relationalValueBinding.getValue() );
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assertFalse( "natural id column should not be nullable", column.isNullable() );
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// -----------------------------------------------------------------------------------------------------
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Iterable<UniqueKey> uniqueKeys = entityBinding.getPrimaryTable().getUniqueKeys();
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assertTrue( uniqueKeys.iterator().hasNext() );
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UniqueKey uniqueKey = uniqueKeys.iterator().next();
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assertEquals( 2, uniqueKey.getColumns().size() );
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for ( final Column c : uniqueKey.getColumns() ) {
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String name = c.getColumnName().getName();
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assertTrue( "age".equals( name ) || "name".equals( name ) );
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}
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}
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@Entity
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public class EntityWithEmbedded {
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@Id
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long id;
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@NaturalId
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@Embedded
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Component component;
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}
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@Embeddable
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public class Component {
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String name;
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String age;
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}
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@Test
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@Resources(annotatedClasses = { EntityWithEmbedded.class, Component.class })
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public void testEmbeddedNaturalIdAttributeBinding() {
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EntityBinding entityBinding = getEntityBinding( EntityWithEmbedded.class );
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assertNull( entityBinding.getHierarchyDetails().getNaturalIdCaching() );
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SingularAttributeBinding attributeBinding = (SingularAttributeBinding) entityBinding.locateAttributeBinding(
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"component"
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);
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assertEquals(
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SingularAttributeBinding.NaturalIdMutability.IMMUTABLE,
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attributeBinding.getNaturalIdMutability()
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);
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List<RelationalValueBinding> relationalValueBindings = attributeBinding.getRelationalValueBindings();
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for ( RelationalValueBinding valueBinding : relationalValueBindings ) {
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assertFalse(
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"immutable (by default) natural id should not be included in the update list",
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valueBinding.isIncludeInUpdate()
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);
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Column column = Column.class.cast( valueBinding.getValue() );
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assertFalse( "natural id column should not be nullable", column.isNullable() );
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}
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Iterable<UniqueKey> uniqueKeys = entityBinding.getPrimaryTable().getUniqueKeys();
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assertTrue( uniqueKeys.iterator().hasNext() );
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UniqueKey uniqueKey = uniqueKeys.iterator().next();
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assertEquals( 2, uniqueKey.getColumns().size() );
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for ( final Column c : uniqueKey.getColumns() ) {
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String name = c.getColumnName().getName();
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assertTrue( "age".equals( name ) || "name".equals( name ) );
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}
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}
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@Entity
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@NaturalIdCache
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public class EntityWithAssociation {
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@Id
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long id;
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@NaturalId
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String name;
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@ManyToOne
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@NaturalId
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SimpleEntity simpleEntity;
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}
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@Entity
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public class SimpleEntity {
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@Id
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long id;
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String simpleName;
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}
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@Test
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@Resources(annotatedClasses = {
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NaturalIdBindingTests.EntityWithAssociation.class,
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NaturalIdBindingTests.SimpleEntity.class
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})
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public void testAssociationNaturalIdBinding() {
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EntityBinding entityBinding = getEntityBinding( EntityWithAssociation.class );
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assertNotNull( entityBinding.getHierarchyDetails().getNaturalIdCaching() );
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assertNotNull( entityBinding.getHierarchyDetails().getNaturalIdCaching().getRegion() );
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SingularAttributeBinding attributeBinding = (SingularAttributeBinding)entityBinding.locateAttributeBinding( "simpleEntity" );
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assertEquals( SingularAttributeBinding.NaturalIdMutability.IMMUTABLE, attributeBinding.getNaturalIdMutability() );
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List<RelationalValueBinding> relationalValueBindings = attributeBinding.getRelationalValueBindings();
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assertEquals( 1, relationalValueBindings.size() );
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RelationalValueBinding relationalValueBinding = relationalValueBindings.get( 0 );
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assertFalse(
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"immutable natural id should not be included in the update list",
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relationalValueBinding.isIncludeInUpdate()
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);
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Column column = Column.class.cast( relationalValueBinding.getValue() );
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assertFalse( "natural id column should not be nullable", column.isNullable() );
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// -----------------------------------------------------------------------------------------------------
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Iterable<UniqueKey> uniqueKeys = entityBinding.getPrimaryTable().getUniqueKeys();
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assertTrue( uniqueKeys.iterator().hasNext() );
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UniqueKey uniqueKey = uniqueKeys.iterator().next();
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assertEquals( 2, uniqueKey.getColumns().size() );
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for ( final Column c : uniqueKey.getColumns() ) {
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String name = c.getColumnName().getName();
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assertTrue( "name".equals( name ) || "simpleEntity".equals( name ) );
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}
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}
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}
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