diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/StringConverter.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/StringConverter.java | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/StringConverter.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/StringConverter.java deleted file mode 100644 index 556b530862..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/StringConverter.java +++ /dev/null @@ -1,68 +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 - * into strings. - */ -public interface StringConverter<T> { - - /** - * Convert the specified object into a string. - * The semantics of "convert" is determined by the - * contract between the client and the server. - */ - String convertToString(T o); - - - final class Default<S> implements StringConverter<S> { - @SuppressWarnings("unchecked") - public static final StringConverter INSTANCE = new Default(); - @SuppressWarnings("unchecked") - public static <R> StringConverter<R> instance() { - return INSTANCE; - } - // ensure single instance - private Default() { - super(); - } - // simply return the object's #toString() result - public String convertToString(S o) { - return (o == null) ? null : o.toString(); - } - @Override - public String toString() { - return "StringConverter.Default"; - } - } - - final class Disabled<S> implements StringConverter<S> { - @SuppressWarnings("unchecked") - public static final StringConverter INSTANCE = new Disabled(); - @SuppressWarnings("unchecked") - public static <R> StringConverter<R> instance() { - return INSTANCE; - } - // ensure single instance - private Disabled() { - super(); - } - // throw an exception - public String convertToString(S o) { - throw new UnsupportedOperationException(); - } - @Override - public String toString() { - return "StringConverter.Disabled"; - } - } - -} |