OPENJPA-1184 Testcase contributed by David Minor.

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@813985 13f79535-47bb-0310-9956-ffa450edef68

openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/relations/MapKeyChild.java

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+/*
+ * 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.relations;
+
+import java.io.Serializable;
+
+import javax.persistence.Basic;
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+@Entity
+public class MapKeyChild implements Serializable {
+
+    @Id
+    @GeneratedValue
+    private long id;
+
+    @Basic
+    @Column(length=32)
+    private String mapKey;
+
+	@ManyToOne
+	@JoinColumn
+    private MapKeyParent parent;
+
+    public long getId() { 
+        return id; 
+    }
+    
+	public MapKeyParent getParent() {
+		return this.parent;
+	}
+
+	public void setParent(MapKeyParent parent) {
+		this.parent = parent;
+	}
+
+	public String getMapKey() {
+		return this.mapKey;
+	}
+
+	public void setMapKey(String mapKey) {
+		this.mapKey = mapKey;
+	}
+}

openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/relations/MapKeyParent.java

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+/*
+ * 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.relations;
+
+import java.io.Serializable;
+import java.util.Map;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.MapKey;
+import javax.persistence.OneToMany;
+
+
+@Entity
+public class MapKeyParent implements Serializable {
+
+    @Id
+    @GeneratedValue
+    private long id;
+
+	@OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, 
+			fetch=FetchType.EAGER)
+	@MapKey(name = "mapKey")
+    private Map<String,MapKeyChild> children;
+
+
+    public long getId() { 
+        return id; 
+    }
+
+	public Map<String, MapKeyChild> getChildren() {
+		return this.children;
+	}
+
+	public void setChildren(Map<String, MapKeyChild> children) {
+		this.children = children;
+	}
+
+}

openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/relations/TestParallelEagerMap.java

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+/*
+ * 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.relations;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.openjpa.persistence.OpenJPAEntityManager;
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+
+public class TestParallelEagerMap
+    extends SingleEMFTestCase {
+
+    public void setUp() {
+    	super.setUp(CLEAR_TABLES, MapKeyParent.class, MapKeyChild.class,
+    			"openjpa.jdbc.EagerFetchMode", "parallel");
+    }
+
+    public void testParentNotNull() {
+    	
+    	MapKeyParent[] parents = { new MapKeyParent(), new MapKeyParent() };
+    	for( MapKeyParent parent : parents ) {
+	    	Map<String,MapKeyChild> children = new HashMap<String,MapKeyChild>();
+	    	for(String key : new String[]{"childA"}) {
+	    		MapKeyChild child = new MapKeyChild();
+	    		child.setParent(parent);
+	    		child.setMapKey(key);
+	    		children.put(key, child);
+	    	}
+	    	parent.setChildren(children);
+    	}
+    	
+    	OpenJPAEntityManager em = emf.createEntityManager();
+    	em.getTransaction().begin();
+    	for(MapKeyParent parent : parents) {
+    		em.persist(parent);
+    	}
+    	em.getTransaction().commit();
+    	em.close();
+    	
+    	em = emf.createEntityManager();
+    	MapKeyParent parent2 = (MapKeyParent)em.createQuery(
+    			"SELECT p FROM MapKeyParent p WHERE p.id=" + parents[0].getId() + 
+    			" OR p.id=" + parents[1].getId()).getResultList().get(1);
+    	em.close();
+    	
+    	for(MapKeyChild child : parent2.getChildren().values()) {
+    		assertNotNull("Parent should not be null", child.getParent());
+    	}
+    }
+}