| /******************************************************************************* |
| * Copyright (c) 2008, 2011 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.jpa.db; |
| |
| /** |
| * This interface allows clients of the Dali db package to control whether |
| * database identifiers are to be treated as though they are delimited, which, |
| * most significantly, usually means the identifiers are case-sensitive. |
| * <p> |
| * 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. |
| */ |
| public interface DatabaseIdentifierAdapter { |
| |
| /** |
| * Return whether identifiers are to be treated as though they were |
| * delimited. |
| */ |
| boolean treatIdentifiersAsDelimited(); |
| |
| |
| /** |
| * This adapter simply returns <code>false</code>, which is compatible |
| * with JPA 1.0. |
| */ |
| final class Default implements DatabaseIdentifierAdapter { |
| public static final DatabaseIdentifierAdapter INSTANCE = new Default(); |
| public static DatabaseIdentifierAdapter instance() { |
| return INSTANCE; |
| } |
| // ensure single instance |
| private Default() { |
| super(); |
| } |
| public boolean treatIdentifiersAsDelimited() { |
| return false; // JPA 1.0 |
| } |
| @Override |
| public String toString() { |
| return this.getClass().getDeclaringClass().getSimpleName() + '.' + this.getClass().getSimpleName(); |
| } |
| } |
| } |