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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/TransformationWritablePropertyValueModel.java')
| -rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/TransformationWritablePropertyValueModel.java | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/TransformationWritablePropertyValueModel.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/TransformationWritablePropertyValueModel.java deleted file mode 100644 index 1299097bf7..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/TransformationWritablePropertyValueModel.java +++ /dev/null @@ -1,127 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008 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; - -import org.eclipse.jpt.utility.internal.BidiTransformer; -import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel; - -/** - * A <code>TransformationWritablePropertyValueModel</code> wraps another - * <code>WritablePropertyValueModel</code> and uses a <code>BidiTransformer</code> - * to:<ul> - * <li>transform the wrapped value before it is returned by <code>value()</code> - * <li>"reverse-transform" the new value that comes in via - * <code>setValue(Object)</code> - * </ul> - * As an alternative to building a <code>BidiTransformer</code>, - * a subclass of <code>TransformationWritablePropertyValueModel</code> can - * override the <code>transform_(Object)</code> and - * <code>reverseTransform_(Object)</code> methods; or, - * if something other than null should be returned when the wrapped value - * is null or the new value is null, override the <code>transform(Object)</code> - * and <code>reverseTransform(Object)</code> methods. - */ -public class TransformationWritablePropertyValueModel<T1, T2> - extends TransformationPropertyValueModel<T1, T2> - implements WritablePropertyValueModel<T2> -{ - - // ********** constructors/initialization ********** - - /** - * Construct a writable property value model with the specified nested - * writable property value model and the default bidi transformer. - * Use this constructor if you want to override the - * <code>transform_(Object)</code> and <code>reverseTransform_(Object)</code> - * (or <code>transform(Object)</code> and <code>reverseTransform(Object)</code>) - * methods instead of building a <code>BidiTransformer</code>. - */ - public TransformationWritablePropertyValueModel(WritablePropertyValueModel<T1> valueHolder) { - super(valueHolder); - } - - /** - * Construct a writable property value model with the specified nested - * writable property value model and bidi transformer. - */ - public TransformationWritablePropertyValueModel(WritablePropertyValueModel<T1> valueHolder, BidiTransformer<T1, T2> transformer) { - super(valueHolder, transformer); - } - - @Override - protected BidiTransformer<T1, T2> buildTransformer() { - return new DefaultBidiTransformer(); - } - - - // ********** WritablePropertyValueModel implementation ********** - - public void setValue(T2 value) { - // "reverse-transform" the object before passing it to the the nested value model - this.valueHolder().setValue(this.reverseTransform(value)); - } - - - // ********** behavior ********** - - /** - * "Reverse-transform" the specified value and return the result. - * This is called by #setValue(Object). - */ - protected T1 reverseTransform(T2 value) { - return this.transformer().reverseTransform(value); - } - - /** - * "Reverse-transform" the specified, non-null, value and return the result. - */ - protected T1 reverseTransform_(@SuppressWarnings("unused") T2 value) { - throw new UnsupportedOperationException(); - } - - - // ********** queries ********** - - /** - * Our constructors accept only a WritablePropertyValueModel<T1>. - */ - @SuppressWarnings("unchecked") - protected WritablePropertyValueModel<T1> valueHolder() { - return (WritablePropertyValueModel<T1>) this.valueHolder; - } - - /** - * Our constructors accept only a bidirectional transformer. - */ - protected BidiTransformer<T1, T2> transformer() { - return (BidiTransformer<T1, T2>) this.transformer; - } - - - // ********** default bidi transformer ********** - - /** - * The default bidi transformer will return null if the wrapped value is null. - * If the wrapped value is not null, it is transformed by a subclass - * implementation of #transform_(Object). - * The default bidi transformer will also return null if the new value is null. - * If the new value is not null, it is reverse-transformed by a subclass - * implementation of #reverseTransform_(Object). - */ - protected class DefaultBidiTransformer - extends DefaultTransformer - implements BidiTransformer<T1, T2> - { - public T1 reverseTransform(T2 value) { - return (value == null) ? null : TransformationWritablePropertyValueModel.this.reverseTransform_(value); - } - } - -} |