HHH-8573: Test case illustrating creation of a superclass instance when

subclass instance needed

hibernate-core/src/test/java/org/hibernate/test/lazynocascadecache/BaseChild.java

@@ -0,0 +1,61 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2013, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.test.lazynocascadecache;
+
+/**
+ * @author Vasily Kochnev
+ */
+public class BaseChild {
+	private Long id;
+
+	private BaseChild dependency;
+
+	/**
+	 * @return Entity identifier.
+	 */
+	public Long getId() {
+		return id;
+	}
+
+	/**
+	 * @param id Identifier to set.
+	 */
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	/**
+	 * @return Child dependency
+	 */
+	public BaseChild getDependency() {
+		return dependency;
+	}
+
+	/**
+	 * @param dependency Dependency to set.
+	 */
+	public void setDependency(BaseChild dependency) {
+		this.dependency = dependency;
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/lazynocascadecache/Child.java

@@ -0,0 +1,45 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2013, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.test.lazynocascadecache;
+
+/**
+ * @author Vasily Kochnev
+ */
+public class Child extends BaseChild {
+	private String name;
+
+	/**
+	 * @return Name of the child.
+	 */
+	public String getName() {
+		return name;
+	}
+
+	/**
+	 * @param name The name to set.
+	 */
+	public void setName(String name) {
+		this.name = name;
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/lazynocascadecache/LazyNoCascadeCacheTest.java

@@ -0,0 +1,60 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2013, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.test.lazynocascadecache;
+
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+
+import org.junit.Test;
+
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+
+/**
+ * @author Vasily Kochnev
+ */
+public class LazyNoCascadeCacheTest extends BaseCoreFunctionalTestCase {
+	public String[] getMappings() {
+		return new String[] {"lazynocascadecache/Parent.hbm.xml"};
+	}
+
+	@Test
+	public void testNoCascadeCache() {
+		Parent parent = new Parent();
+
+		BaseChild firstChild = new BaseChild();
+		parent.getChildren().add( firstChild );
+
+		Child secondChild = new Child();
+		secondChild.setName( "SecondChildName" );
+		parent.getChildren().add( secondChild );//Dependency child must go after dependent in collection
+
+		firstChild.setDependency( secondChild );
+
+		Session s = openSession();
+		Transaction t = s.beginTransaction();
+		s.merge( parent );
+		t.commit();
+		s.close();
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/lazynocascadecache/Parent.hbm.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<!DOCTYPE hibernate-mapping PUBLIC
+        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
+<hibernate-mapping package="org.hibernate.test.lazynocascadecache">
+    <class name="Parent">
+        <id name="id" column="parent_id">
+            <generator class="increment"/>
+        </id>
+        <set name="children" cascade="all">
+            <key column="parent_id"/>
+            <one-to-many class="BaseChild"/>
+        </set>
+    </class>
+
+    <class name="BaseChild" >
+        <id name="id" column="base_child_id">
+            <generator class="increment"/>
+        </id>
+        <discriminator/>
+        <many-to-one name="dependency" column="dependency_id" class="BaseChild" lazy="proxy"/>
+        <subclass name="Child">
+            <property name="name" column="name" type="string"/>
+        </subclass>
+    </class>
+</hibernate-mapping>

hibernate-core/src/test/java/org/hibernate/test/lazynocascadecache/Parent.java

@@ -0,0 +1,65 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2013, Red Hat Inc. or third-party contributors as
+ * indicated by the @author tags or express copyright attribution
+ * statements applied by the authors.  All third-party contributions are
+ * distributed under license by Red Hat Inc.
+ *
+ * This copyrighted material is made available to anyone wishing to use, modify,
+ * copy, or redistribute it subject to the terms and conditions of the GNU
+ * Lesser General Public License, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this distribution; if not, write to:
+ * Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301  USA
+ */
+package org.hibernate.test.lazynocascadecache;
+
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+/**
+ * @author Vasily Kochnev
+ */
+public class Parent {
+	private Long id;
+
+	// LinkedHashSet used for the reason to force the specific order of elements in collection
+	private Set<BaseChild> children = new LinkedHashSet<BaseChild>();
+
+	/**
+	 * @return Entity identifier.
+	 */
+	public Long getId() {
+		return id;
+	}
+
+	/**
+	 * @param id Identifier to set.
+	 */
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	/**
+	 * @return Set of children entities.
+	 */
+	public Set<BaseChild> getChildren() {
+		return children;
+	}
+
+	/**
+	 * @param children Set of children entities to set.
+	 */
+	public void setChildren(Set<BaseChild> children) {
+		this.children = children;
+	}
+}