1 files changed, 118 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.jpa.core/src/org/eclipse/jpt/jpa/core/jpql/spi/JpaNullManagedType.java b/jpa/plugins/org.eclipse.jpt.jpa.core/src/org/eclipse/jpt/jpa/core/jpql/spi/JpaNullManagedType.java
new file mode 100644
index 0000000000..86272628e4
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.jpa.core/src/org/eclipse/jpt/jpa/core/jpql/spi/JpaNullManagedType.java
@@ -0,0 +1,118 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Oracle. All rights reserved.
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
+ * which accompanies this distribution.
+ * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *     Oracle - initial API and implementation
+ *
+ ******************************************************************************/
+package org.eclipse.jpt.jpa.core.jpql.spi;
+
+import org.eclipse.jpt.jpa.core.context.TypeMapping;
+import org.eclipse.persistence.jpa.jpql.spi.IManagedType;
+import org.eclipse.persistence.jpa.jpql.spi.IManagedTypeProvider;
+import org.eclipse.persistence.jpa.jpql.spi.IManagedTypeVisitor;
+import org.eclipse.persistence.jpa.jpql.spi.IMapping;
+import org.eclipse.persistence.jpa.jpql.spi.IType;
+import org.eclipse.persistence.jpa.jpql.util.iterator.IterableIterator;
+import org.eclipse.persistence.jpa.jpql.util.iterator.NullIterator;
+
+/**
+ * The concrete implementation of {@link IManagedType} that is wrapping the design-time
+ * representation a "null" managed type.
+ *
+ * Provisional API: This interface is part of an interim API that is still under development and
+ * expected to change significantly before reaching stability. It is available at this early stage
+ * to solicit feedback from pioneering adopters on the understanding that any code that uses this
+ * API will almost certainly be broken (repeatedly) as the API evolves.
+ *
+ * @version 3.1
+ * @since 3.0
+ * @author Pascal Filion
+ */
+public class JpaNullManagedType implements IManagedType {
+
+	/**
+	 * The provider of JPA managed types.
+	 */
+	private final JpaManagedTypeProvider provider;
+
+	/**
+	 * The cached {@link IType} of this "null" managed type.
+	 */
+	private IType type;
+
+	/**
+	 * The design-time model object wrapped by this class.
+	 */
+	private final TypeMapping typeMapping;
+
+	/**
+	 * Creates a new <code>JpaNullManagedType</code>.
+	 *
+	 * @param managedType The provider of JPA managed types
+	 * @param typeMapping The design-time model object wrapped by this class
+	 */
+	public JpaNullManagedType(JpaManagedTypeProvider provider, TypeMapping typeMapping) {
+		super();
+		this.provider    = provider;
+		this.typeMapping = typeMapping;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public void accept(IManagedTypeVisitor visitor) {
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public int compareTo(IManagedType managedType) {
+		return getType().getName().compareTo(managedType.getType().getName());
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public IMapping getMappingNamed(String name) {
+		return null;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public IManagedTypeProvider getProvider() {
+		return provider;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public IType getType() {
+		if (type == null) {
+			type = provider.getTypeRepository().getType(typeMapping.getPersistentType().getName());
+		}
+		return type;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public IterableIterator<IMapping> mappings() {
+		return NullIterator.instance();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String toString() {
+		return getType().getName();
+	}
+}
+\ No newline at end of file