Skip to main content
summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/BidiTransformer.java')
-rw-r--r--jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/BidiTransformer.java81
1 files changed, 0 insertions, 81 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/BidiTransformer.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/BidiTransformer.java
deleted file mode 100644
index 5f6d3d221b..0000000000
--- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/BidiTransformer.java
+++ /dev/null
@@ -1,81 +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;
-
-/**
- * Used by various "pluggable" classes to transform objects
- * in both directions.
- *
- * If anyone can come up with a better class name
- * and/or method name, I would love to hear it. ~bjv
- */
-public interface BidiTransformer<T1, T2> extends Transformer<T1, T2> {
-
- /**
- * Return the "reverse-transformed" object.
- * The semantics of "reverse-transform" is determined by the
- * contract between the client and the server.
- */
- T1 reverseTransform(T2 o);
-
-
- final class Null<S1, S2> implements BidiTransformer<S1, S2> {
- @SuppressWarnings("unchecked")
- public static final BidiTransformer INSTANCE = new Null();
- @SuppressWarnings("unchecked")
- public static <R1, R2> BidiTransformer<R1, R2> instance() {
- return INSTANCE;
- }
- // ensure single instance
- private Null() {
- super();
- }
- // simply return the object, unchanged
- @SuppressWarnings("unchecked")
- public S2 transform(S1 o) {
- return (S2) o;
- }
- // simply return the object, unchanged
- @SuppressWarnings("unchecked")
- public S1 reverseTransform(S2 o) {
- return (S1) o;
- }
- @Override
- public String toString() {
- return "BidiTransformer.Null";
- }
- }
-
- final class Disabled<S1, S2> implements BidiTransformer<S1, S2> {
- @SuppressWarnings("unchecked")
- public static final BidiTransformer INSTANCE = new Disabled();
- @SuppressWarnings("unchecked")
- public static <R1, R2> BidiTransformer<R1, R2> instance() {
- return INSTANCE;
- }
- // ensure single instance
- private Disabled() {
- super();
- }
- // throw an exception
- public S2 transform(S1 o) {
- throw new UnsupportedOperationException();
- }
- // throw an exception
- public S1 reverseTransform(S2 o) {
- throw new UnsupportedOperationException();
- }
- @Override
- public String toString() {
- return "BidiTransformer.Disabled";
- }
- }
-
-}

Back to the top