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From ppod...@apache.org
Subject svn commit: r687806 - in /openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query: TestMultipleEntityProjection.java domain/Magazine.java domain/Publisher.java
Date Thu, 21 Aug 2008 17:11:42 GMT
Author: ppoddar
Date: Thu Aug 21 10:11:42 2008
New Revision: 687806

URL: http://svn.apache.org/viewvc?rev=687806&view=rev
Log:
Add a test case for projection of multiple entity.

Added:
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/TestMultipleEntityProjection.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Magazine.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Publisher.java

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/TestMultipleEntityProjection.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/TestMultipleEntityProjection.java?rev=687806&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/TestMultipleEntityProjection.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/TestMultipleEntityProjection.java
Thu Aug 21 10:11:42 2008
@@ -0,0 +1,161 @@
+/*
+ * TestLockGroupsWithHorizontalBaseType.java
+ *
+ * Created on October 4, 2006, 5:03 PM
+ *
+ * To change this template, choose Tools | Template Manager
+ * and open the template in the editor.
+ */
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * 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
+ * under the License.    
+ */
+package org.apache.openjpa.persistence.jdbc.query;
+
+import java.util.List;
+
+import javax.persistence.EntityManager;
+import javax.persistence.Query;
+
+import org.apache.openjpa.persistence.jdbc.query.domain.Magazine;
+import org.apache.openjpa.persistence.jdbc.query.domain.Publisher;
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+
+/**
+ * Tests multiple entities in projection are returned with both inner and outer
+ * joins.
+ * 
+ * Originally reported in 
+ * <A HREF="http://n2.nabble.com/Selecting-multiple-objects---bug--tc732941.html">
+ * OpenJPA mailing list</A>
+ * 
+ * @author Pinaki Poddar
+ * 
+ */
+public class TestMultipleEntityProjection extends SingleEMFTestCase {
+	private static boolean INNER_JOIN = true;
+	private static String[][] MAGAZINE_PUBLISHER_NAME_PAIRS = {
+		new String[] {"Times",      "Publisher-0"},
+		new String[] {"Times Life", "Publisher-1"},
+		new String[] {"Times Kid",  null},
+		new String[] {"Newsweek",   "Publisher-3"},
+		new String[] {"People",     null},
+		new String[] {"Nature",     "Publisher-5"},
+		new String[] {"MIT Review", "Publisher-6"},
+		new String[] {"Wired",      "Publisher-7"},
+		
+	};
+	
+	public void setUp() {
+		super.setUp(CLEAR_TABLES, Magazine.class, Publisher.class);
+		createData();
+	}
+
+	/**
+	 * Create Magazine and associate Publisher unless its name is null.
+	 */
+	void createData() {
+		EntityManager em = emf.createEntityManager();
+		em.getTransaction().begin();
+		for (int i = 0; i < MAGAZINE_PUBLISHER_NAME_PAIRS.length; i++) {
+			String magName = MAGAZINE_PUBLISHER_NAME_PAIRS[i][0];
+			String pubName = MAGAZINE_PUBLISHER_NAME_PAIRS[i][1];
+			Magazine mag = new Magazine();
+			mag.setName(magName);
+			if (pubName != null) {
+				Publisher pub = new Publisher();
+				pub.setName(pubName);
+				mag.setPublisher(pub);
+				em.persist(pub);
+			}
+			em.persist(mag);
+		}
+		em.getTransaction().commit();
+	}
+
+	public void testMultipleEntitiesInProjectionUsingOuterJoin() {
+		String jpql = "select m, p " +
+		              "from Magazine m left outer join m.publisher p " +
+		              "where ((:useName = false) or (m.name like :name))";
+		EntityManager em = emf.createEntityManager();
+		Query query = em.createQuery(jpql);
+		
+		String magKey = "Times";
+		query.setParameter("useName", true);
+		query.setParameter("name", '%'+magKey+'%');
+		
+		List result = query.getResultList();
+		
+		int expecetedCount = getExpecetedResultCount(magKey, !INNER_JOIN);
+		assertFalse(result.isEmpty());
+		assertEquals(expecetedCount, result.size());
+		for (Object o : result) {
+			assertTrue(o instanceof Object[]);
+			Object[] row = (Object[])o;
+			assertEquals(2, row.length);
+			assertTrue(row[0] instanceof Magazine);
+			assertTrue(row[1] == null || row[1] instanceof Publisher);
+			assertNotNull(row[0]);
+			assertEquals(((Magazine)row[0]).getPublisher(), row[1]);
+		}
+	}
+	
+	public void testMultipleEntitiesInProjectionUsingInnerJoin() {
+		String jpql = "select m, p " +
+		              "from Magazine m inner join m.publisher p " +
+		              "where ((:useName = false) or (m.name like :name))";
+		EntityManager em = emf.createEntityManager();
+		Query query = em.createQuery(jpql);
+		
+		String magKey = "Times";
+		query.setParameter("useName", true);
+		query.setParameter("name", '%'+magKey+'%');
+		
+		List result = query.getResultList();
+		
+		int expecetedCount = getExpecetedResultCount(magKey, INNER_JOIN);
+		assertFalse(result.isEmpty());
+		assertEquals(expecetedCount, result.size());
+		for (Object o : result) {
+			assertTrue(o instanceof Object[]);
+			Object[] row = (Object[])o;
+			assertEquals(2, row.length);
+			assertTrue(row[0] instanceof Magazine);
+			assertTrue(row[1] instanceof Publisher);
+			assertNotNull(row[0]);
+			assertNotNull(row[1]);
+			assertEquals(((Magazine)row[0]).getPublisher(), row[1]);
+		}
+	}
+	
+	/**
+	 * Count number of expected result based on inner/outer join condition and
+	 * the name of the Magazine.
+	 */
+	private int getExpecetedResultCount(String key, boolean innerJoin) {
+		int count = 0;
+		for (int i = 0; i < MAGAZINE_PUBLISHER_NAME_PAIRS.length; i++) {
+			String magName = MAGAZINE_PUBLISHER_NAME_PAIRS[i][0];
+			String pubName = MAGAZINE_PUBLISHER_NAME_PAIRS[i][1];
+			if (magName.indexOf(key) != -1)
+				if (!innerJoin || (innerJoin && pubName != null))
+					count++;
+		}
+		return count;
+	}
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Magazine.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Magazine.java?rev=687806&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Magazine.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Magazine.java
Thu Aug 21 10:11:42 2008
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * 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
+ * under the License.    
+ */
+package org.apache.openjpa.persistence.jdbc.query.domain;
+
+import javax.persistence.*;
+
+/**
+ * Simple persistent entity as a target of bi-directional one-to-one 
+ * association.
+ * 
+ * @author Pinaki Poddar
+ *
+ */
+@Entity
+public class Magazine {
+	@Id
+	@GeneratedValue
+	private long id;
+
+	private String name;
+	
+	@OneToOne
+	private Publisher publisher;
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public Publisher getPublisher() {
+		return publisher;
+	}
+
+	public void setPublisher(Publisher publisher) {
+		this.publisher = publisher;
+	}
+
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Publisher.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Publisher.java?rev=687806&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Publisher.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/query/domain/Publisher.java
Thu Aug 21 10:11:42 2008
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * 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
+ * under the License.    
+ */
+package org.apache.openjpa.persistence.jdbc.query.domain;
+
+import javax.persistence.*;
+
+/**
+ * Simple persistent entity as a target of uni-directional one-to-one 
+ * association.
+ * 
+ * @author Pinaki Poddar
+ *
+ */
+@Entity
+public class Publisher {
+	@Id
+	@GeneratedValue
+	private long id;
+
+	private String name;
+	
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+}



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