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From fayw...@apache.org
Subject svn commit: r746446 - in /openjpa/trunk: openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/ openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/
Date Sat, 21 Feb 2009 07:29:40 GMT
Author: faywang
Date: Sat Feb 21 07:29:40 2009
New Revision: 746446

URL: http://svn.apache.org/viewvc?rev=746446&view=rev
Log:
OPENJPA-931: nested embeddedId/MappedById support

Added:
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Book1.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/BookId1.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Library1.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Page1.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/PageId1.java
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/TestMultipleLevelDerivedIdentity1.java
Modified:
    openjpa/trunk/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/EmbedValueHandler.java
    openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ObjectIdStateManager.java

Modified: openjpa/trunk/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/EmbedValueHandler.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/EmbedValueHandler.java?rev=746446&r1=746445&r2=746446&view=diff
==============================================================================
--- openjpa/trunk/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/EmbedValueHandler.java
(original)
+++ openjpa/trunk/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/EmbedValueHandler.java
Sat Feb 21 07:29:40 2009
@@ -153,6 +153,8 @@
                     OpenJPAStateManager embedSm = (OpenJPAStateManager)
                         ((PersistenceCapable)cval).pcGetStateManager();
                     idx = toDataStoreValue1(embedSm, val, store, cols, rvals, idx);
+                } else if (cval instanceof ObjectIdStateManager) {
+                    idx = toDataStoreValue1((ObjectIdStateManager)cval, val, store, cols,
rvals, idx);
                 } else if (cval == null) {
                     idx = toDataStoreValue1(null, val, store, cols, rvals, idx);
                 }

Modified: openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ObjectIdStateManager.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ObjectIdStateManager.java?rev=746446&r1=746445&r2=746446&view=diff
==============================================================================
--- openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ObjectIdStateManager.java
(original)
+++ openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/ObjectIdStateManager.java
Sat Feb 21 07:29:40 2009
@@ -693,17 +693,22 @@
             return null;
 
         FieldMetaData fmd = getMetaData().getField(field);
-        if (fmd.getBackingMember() instanceof Field)
-            return Reflection.get(_oid, (Field) fmd.getBackingMember());
-        if (fmd.getBackingMember() instanceof Method)
-            return Reflection.get(_oid, (Method) fmd.getBackingMember());
-
-        if (fmd.getDefiningMetaData().getAccessType()
+        Object val = null;
+        if (fmd.getBackingMember() instanceof Field) 
+            val = Reflection.get(_oid, (Field) fmd.getBackingMember());
+        else if (fmd.getBackingMember() instanceof Method) 
+            val = Reflection.get(_oid, (Method) fmd.getBackingMember());
+        else if (fmd.getDefiningMetaData().getAccessType()
             == ClassMetaData.ACCESS_FIELD)
-            return Reflection.get(_oid, Reflection.findField(_oid.getClass(), 
+            val = Reflection.get(_oid, Reflection.findField(_oid.getClass(), 
                 fmd.getName(), true));
-        return Reflection.get(_oid, Reflection.findGetter(_oid.getClass(),
+        else 
+            val = Reflection.get(_oid, Reflection.findGetter(_oid.getClass(),
             fmd.getName(), true));
+
+        if (fmd.getValue().getEmbeddedMetaData() != null) 
+            return new ObjectIdStateManager(val, null, fmd);
+        return val;
     }
 
     /**

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Book1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Book1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Book1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Book1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,117 @@
+/*
+ * 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.enhance.identity;
+
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.ManyToOne;
+import javax.persistence.MappedById;
+import javax.persistence.OneToMany;
+
+import org.apache.openjpa.persistence.jdbc.VersionColumn;
+
+/**
+ * Entity used to test compound primary keys using entity as relationship to 
+ * more than one level.
+ * 
+ * Test case and domain classes were originally part of the reported issue
+ * <A href="https://issues.apache.org/jira/browse/OPENJPA-207">OPENJPA-207</A>
+ *  
+ * @author Jeffrey Blattman
+ * @author Pinaki Poddar
+ *
+ */
+@Entity
+@VersionColumn
+public class Book1 implements Serializable {
+    @EmbeddedId
+    private BookId1 bid;
+    
+    @OneToMany(cascade = CascadeType.ALL, mappedBy = "book")
+    private Set<Page1> pages = new HashSet<Page1>();
+    
+    @MappedById("library")
+    @Column(nullable = false)
+    @ManyToOne
+    private Library1 library;
+    
+    private String author;
+    
+	public BookId1 getBid() {
+        return bid;
+    }
+    
+    public void setBid(BookId1 bid) {
+        this.bid = bid;
+    }
+    
+    public Library1 getLibrary() {
+        return library;
+    }
+
+    public void setLibrary(Library1 library) {
+        this.library = library;
+    }
+
+    public Page1 getPage(PageId1 pid) {
+        for (Page1 p: pages) {
+            if (p.getPid().equals(pid)) {
+                return p;
+            }
+        }
+        return null;
+    }
+    
+    public void addPage(Page1 p) {
+        p.setBook(this);
+        pages.add(p);
+    }
+    
+	public String getAuthor() {
+		return author;
+	}
+
+	public void setAuthor(String author) {
+		this.author = author;
+	}
+
+    public boolean equals(Object o) {
+        if (!(o instanceof Book1)) {
+            return false;
+        }
+        
+        Book1 other = (Book1)o;
+        
+        if (!getBid().equals(other.getBid())) {
+            return false;
+        }
+        
+        return true;
+    }
+
+    public int hashCode() {
+        return getBid().hashCode();
+    }
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/BookId1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/BookId1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/BookId1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/BookId1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,91 @@
+/*
+ * 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.enhance.identity;
+
+import java.io.Serializable;
+
+import javax.persistence.Embeddable;
+
+
+/**
+ * Entity identity used to test compound primary keys using entity as 
+ * relationship to more than one level.
+ * 
+ * Test case and domain classes were originally part of the reported issue
+ * <A href="https://issues.apache.org/jira/browse/OPENJPA-207">OPENJPA-207</A>
+ *  
+ * @author Jeffrey Blattman
+ * @author Pinaki Poddar
+ *
+ */
+@Embeddable
+public final class BookId1 implements Serializable {
+    private String name;
+    private String library;
+
+    public BookId1() {}
+    
+    public BookId1(String name, String library) {
+    	this.name = name;
+    	this.library = library;
+    }
+    
+    
+    public boolean equals(Object o) {
+        if (!(o instanceof BookId1)) {
+            return false;
+        }
+        
+        BookId1 other = (BookId1)o;
+        
+        if (!(getName().equals(other.getName()))) {
+            return false;
+        }
+        
+        if (!getLibrary().equals(other.getLibrary())) {
+            return false;
+        }
+        
+        return true;
+    }
+    
+    public int hashCode() {
+        return safeHash(getName()) * safeHash(getLibrary());
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getLibrary() {
+        return library;
+    }
+
+    public void setLibrary(String library) {
+        this.library = library;
+    }
+    
+    private int safeHash(Object o) {
+    	return (o == null) ? 31 : o.hashCode();
+    }
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Library1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Library1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Library1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Library1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,107 @@
+/*
+ * 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.enhance.identity;
+
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Set;
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+
+import org.apache.openjpa.persistence.jdbc.VersionColumn;
+
+/**
+ * Entity used to test compound primary keys using entity as relationship to 
+ * more than one level.
+ * 
+ * Test case and domain classes were originally part of the reported issue
+ * <A href="https://issues.apache.org/jira/browse/OPENJPA-207">OPENJPA-207</A>
+ *  
+ * @author Jeffrey Blattman
+ * @author Pinaki Poddar
+ *
+ */
+@Entity
+@VersionColumn
+public class Library1 implements Serializable {
+    @Id
+    @Column(name="LIBRARY_NAME", nullable = false)
+    private String name;
+    
+    @OneToMany(cascade = CascadeType.ALL, mappedBy = "library")
+    private Set<Book1> books = new HashSet<Book1>();
+    
+    private String location;
+    
+	public String getName() {
+        return name;
+    }
+    
+    public void setName(String name) {
+        this.name = name;
+    }
+    
+    public Set<Book1> getBooks() {
+		return books;
+	}
+
+    public Book1 getBook(BookId1 bid) {
+        for (Book1 b: books) {
+            if (b.getBid().equals(bid)) {
+                return b;
+            }
+        }
+        
+        return null;
+    }
+
+    public void addBook(Book1 book) {
+        book.setLibrary(this);
+        books.add(book);
+    }
+    
+	public String getLocation() {
+		return location;
+	}
+
+	public void setLocation(String location) {
+		this.location = location;
+	}
+
+    public boolean equals(Object o) {
+        if (!(o instanceof Library1)) {
+            return false;
+        }
+        
+        Library1 other = (Library1)o;
+        
+        if (!getName().equals(other.getName())) {
+            return false;
+        }
+        
+        return true;
+    }
+
+    public int hashCode() {
+        return getName().hashCode();
+    }
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Page1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Page1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Page1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/Page1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,75 @@
+/*
+ * 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.enhance.identity;
+
+import java.io.Serializable;
+
+import javax.persistence.Column;
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinColumns;
+import javax.persistence.ManyToOne;
+import javax.persistence.MappedById;
+
+import org.apache.openjpa.persistence.jdbc.VersionColumn;
+
+/**
+ * Entity used to test compound primary keys using entity as relationship to 
+ * more than one level.
+ * 
+ * Test case and domain classes were originally part of the reported issue
+ * <A href="https://issues.apache.org/jira/browse/OPENJPA-207">OPENJPA-207</A>
+ *  
+ * @author Jeffrey Blattman
+ * @author Pinaki Poddar
+ *
+ */
+@Entity
+
+@VersionColumn
+public class Page1 implements Serializable {
+    @EmbeddedId
+    private PageId1 pid;
+
+    @MappedById("book")
+    @Column(nullable = false)
+    @ManyToOne
+    @JoinColumns({
+        @JoinColumn(name="BOOK_LIBRARY_LIBRARY_NAME", referencedColumnName="LIBRARY_LIBRARY_NAME"),
+        @JoinColumn(name="BOOK_BOOK_NAME", referencedColumnName="BOOK_NAME")    
+    })
+    private Book1 book;
+    
+    public PageId1 getPid() {
+        return pid;
+    }
+
+    public void setPid(PageId1 pid) {
+        this.pid = pid;
+    }
+
+    public Book1 getBook() {
+        return book;
+    }
+
+    public void setBook(Book1 book) {
+        this.book = book;
+    }    
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/PageId1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/PageId1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/PageId1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/PageId1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,91 @@
+/*
+ * 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.enhance.identity;
+
+import java.io.Serializable;
+
+import javax.persistence.Embeddable;
+import javax.persistence.Embedded;
+
+
+/**
+ * Entity identity used to test compound primary keys using entity as 
+ * relationship to more than one level.
+ * 
+ * Test case and domain classes were originally part of the reported issue
+ * <A href="https://issues.apache.org/jira/browse/OPENJPA-207">OPENJPA-207</A>
+ *  
+ * @author Jeffrey Blattman
+ * @author Pinaki Poddar
+ *
+ */
+
+@Embeddable
+public final class PageId1 implements Serializable {
+    private int number;
+    @Embedded
+    private BookId1 book;
+
+    public PageId1() {}
+    
+    public PageId1(int number, BookId1 book) {
+    	this.number = number;
+    	this.book = book;
+    }
+    
+    
+    public int getNumber() {
+        return number;
+    }
+
+    public void setNumber(int number) {
+        this.number = number;
+    }
+    
+    public boolean equals(Object o) {
+        if (!(o instanceof PageId1)) {
+            return false;
+        }
+        
+        PageId1 other = (PageId1)o;
+        
+        if (!(getNumber() == other.getNumber())) {
+            return false;
+        }
+      
+        if (!getBook().equals(other.getBook())) {
+            return false;
+        }
+
+        return true;
+    }
+    
+    public int hashCode() {
+        return number * (book != null ? getBook().hashCode() : 31);
+    }
+
+    
+    public BookId1 getBook() {
+        return book;
+    }
+
+    public void setBook(BookId1 book) {
+        this.book = book;
+    }
+}

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/TestMultipleLevelDerivedIdentity1.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/TestMultipleLevelDerivedIdentity1.java?rev=746446&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/TestMultipleLevelDerivedIdentity1.java
(added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/enhance/identity/TestMultipleLevelDerivedIdentity1.java
Sat Feb 21 07:29:40 2009
@@ -0,0 +1,220 @@
+/*
+ * 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.enhance.identity;
+
+import java.util.List;
+
+import javax.persistence.EntityManager;
+
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+
+
+/**
+ * This is a variation of TestMultipleLevelDerivedIdentity Using
+ * MappedById annotations.
+ * @author Fay Wang
+ * 
+ */
+@SuppressWarnings("unchecked")
+public class TestMultipleLevelDerivedIdentity1 extends SingleEMFTestCase {
+	private static String LIBRARY_NAME = "LIB";
+	private static String BOOK_NAME    = "foo";
+	private static int    NUM_PAGES    = 3;
+    public void setUp() throws Exception {
+        super.setUp(CLEAR_TABLES, Library1.class, Book1.class, Page1.class,
+            BookId1.class, PageId1.class,
+            "openjpa.RuntimeUnenhancedClasses", "unsupported");
+        create();
+    }
+    
+	public void testPersist() {
+		create();
+	}
+
+	public void testQueryRootLevel() {
+		EntityManager em = emf.createEntityManager();
+		List<Library1> list = em.createQuery("SELECT p FROM Library1 p")
+							   .getResultList();
+		assertFalse(list.isEmpty());
+		Library1 lib = (Library1) list.get(0);
+		BookId1 bid = new BookId1(BOOK_NAME, lib.getName());
+		Book1 b = lib.getBook(bid);
+		assertNotNull(b);
+		
+		Page1 p = b.getPage(new PageId1(1, bid));
+		assertNotNull(p);
+	}
+	
+	public void testQueryIntermediateLevel() {
+		EntityManager em = emf.createEntityManager();
+		List<Book1> list = em.createQuery("SELECT p FROM Book1 p")
+							   .getResultList();
+		assertFalse(list.isEmpty());
+		Book1 book = list.get(0);
+		Library1 lib = book.getLibrary();
+		for (int i=1; i<=NUM_PAGES; i++) {
+			PageId1 pid = new PageId1(i, book.getBid());
+			Page1 page = book.getPage(pid);
+			assertNotNull(page);
+			assertEquals(book, page.getBook());
+			assertEquals(lib, page.getBook().getLibrary());
+			assertEquals(page, page.getBook().getPage(
+				new PageId1(pid.getNumber(), book.getBid())));
+		}
+	}
+	
+	public void testQueryLeafLevel() {
+		EntityManager em = emf.createEntityManager();
+		List<Page1> list = em.createQuery("SELECT p FROM Page1 p")
+							   .getResultList();
+		assertFalse(list.isEmpty());
+		Book1 book = list.get(0).getBook();
+		Library1 lib = book.getLibrary();
+		for (Page1 page : list) {
+			assertEquals(book, page.getBook());
+			assertEquals(lib, page.getBook().getLibrary());
+			assertEquals(page, page.getBook().
+				getPage(page.getPid()));
+		}
+	}
+
+	public void testFindRootNode() {
+		EntityManager em = emf.createEntityManager();
+		Library1 lib = em.find(Library1.class, LIBRARY_NAME);
+		assertNotNull(lib);
+		BookId1 bid = new BookId1(BOOK_NAME, lib.getName());
+		Book1 b = lib.getBook(bid);
+		assertNotNull(b);
+		PageId1 pid = new PageId1(1, bid);
+		assertNotNull(b.getPage(pid));
+	}
+	
+	public void testFindIntermediateNode() {
+		EntityManager em = emf.createEntityManager();
+		
+		BookId1 bookId = new BookId1();
+		bookId.setLibrary(LIBRARY_NAME);
+		bookId.setName(BOOK_NAME);
+		Book1 book = em.find(Book1.class, bookId);
+		assertNotNull(book);
+	}
+	
+	public void testFindLeafNode() {
+		EntityManager em = emf.createEntityManager();
+		
+		BookId1 bookId = new BookId1();
+		bookId.setLibrary(LIBRARY_NAME);
+		bookId.setName(BOOK_NAME);
+		PageId1 pageId = new PageId1();
+		pageId.setBook(bookId);
+		pageId.setNumber(2);
+		Page1 page = em.find(Page1.class, pageId);
+		assertNotNull(page);
+	}
+	
+	public void testUpdate() {
+		EntityManager em = emf.createEntityManager();
+		em.getTransaction().begin();
+		BookId1 bookId = new BookId1();
+		bookId.setLibrary(LIBRARY_NAME);
+		bookId.setName(BOOK_NAME);
+		Book1 book = em.find(Book1.class, bookId);
+		assertNotNull(book);
+		book.setAuthor("modifiy Author");
+		em.getTransaction().commit();
+	}
+	
+	public void testDeleteRoot() {
+		EntityManager em = emf.createEntityManager();
+		em.getTransaction().begin();
+		Library1 lib = em.find(Library1.class, LIBRARY_NAME);
+		em.remove(lib);
+		em.getTransaction().commit();
+		
+	    assertEquals(0, count(Library1.class));
+	    assertEquals(0, count(Book1.class));
+	    assertEquals(0, count(Page1.class));
+	}
+	
+	public void testDeleteLeafObtainedByQuery() {
+		EntityManager em = emf.createEntityManager();
+		em.getTransaction().begin();
+		Page1 page = (Page1)em.createQuery("SELECT p FROM Page1 p WHERE p.pid.number=2")
+			.getSingleResult();
+		assertNotNull(page);
+		em.remove(page);
+		em.getTransaction().commit();
+		
+	    assertEquals(1, count(Library1.class));
+	    assertEquals(1, count(Book1.class));
+	    assertEquals(NUM_PAGES-1, count(Page1.class));
+	}
+	
+	public void testDeleteLeafObtainedByFind() {
+		EntityManager em = emf.createEntityManager();
+		em.getTransaction().begin();
+		BookId1 bookId = new BookId1();
+		bookId.setLibrary(LIBRARY_NAME);
+		bookId.setName(BOOK_NAME);
+		PageId1 pageId = new PageId1();
+		pageId.setBook(bookId);
+		pageId.setNumber(2);
+		Page1 page = em.find(Page1.class, pageId);
+		assertNotNull(page);
+		em.remove(page);
+		em.getTransaction().commit();
+		
+	    assertEquals(1, count(Library1.class));
+	    assertEquals(1, count(Book1.class));
+	    assertEquals(NUM_PAGES-1, count(Page1.class));
+	}
+
+	
+	/**
+	 * Create a Library with a Book and three Pages.
+	 */
+	public void create() {
+		if (count(Library1.class) > 0)
+			return;
+		
+		EntityManager em = null;
+		em = emf.createEntityManager();
+		em.getTransaction().begin();
+		
+		Library1 lib = new Library1();
+		lib.setName(LIBRARY_NAME);
+
+		Book1 book = new Book1();
+		BookId1 bid = new BookId1();
+		bid.setName(BOOK_NAME);
+		bid.setLibrary(lib.getName());
+		book.setBid(bid);
+		lib.addBook(book);
+		for (int i = 1; i <= NUM_PAGES; i++) {
+			Page1 page = new Page1();
+			PageId1 pid = new PageId1(i, bid);
+			page.setPid(pid);
+			book.addPage(page);
+		}
+		em.persist(lib);
+		em.getTransaction().commit();
+
+		em.clear();
+	}
+}



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