diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/NullPropertyValueModel.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/NullPropertyValueModel.java | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/NullPropertyValueModel.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/NullPropertyValueModel.java deleted file mode 100644 index 2df9b11ad4..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/NullPropertyValueModel.java +++ /dev/null @@ -1,61 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.utility.internal.model.value; - -/** - * A read-only property value model for when you - * don't need to support a value. - */ -public final class NullPropertyValueModel - extends AbstractReadOnlyPropertyValueModel -{ - - private static final long serialVersionUID = 1L; - - // singleton - private static final NullPropertyValueModel INSTANCE = new NullPropertyValueModel(); - - /** - * Return the singleton. - */ - public static synchronized PropertyValueModel instance() { - return INSTANCE; - } - - /** - * Ensure non-instantiability. - */ - private NullPropertyValueModel() { - super(); - } - - - // ********** PropertyValueModel implementation ********** - - public Object value() { - return null; - } - - - // ********** Object overrides ********** - - @Override - public String toString() { - return "NullPropertyValueModel"; - } - - /** - * Serializable singleton support - */ - private Object readResolve() { - return instance(); - } - -} |