123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596 |
- /*
- * Copyright 2000-2016 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
- package com.vaadin.v7.data.util.converter;
-
- import java.util.Locale;
-
- /**
- * A converter that wraps another {@link Converter} and reverses source and
- * target types.
- *
- * @param <MODEL>
- * The source type
- * @param <PRESENTATION>
- * The target type
- *
- * @author Vaadin Ltd
- * @since 7.0
- */
- public class ReverseConverter<PRESENTATION, MODEL>
- implements Converter<PRESENTATION, MODEL> {
-
- private Converter<MODEL, PRESENTATION> realConverter;
-
- /**
- * Creates a converter from source to target based on a converter that
- * converts from target to source.
- *
- * @param converter
- * The converter to use in a reverse fashion
- */
- public ReverseConverter(Converter<MODEL, PRESENTATION> converter) {
- this.realConverter = converter;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see com.vaadin.data.util.converter.Converter#convertToModel(java
- * .lang.Object, java.util.Locale)
- */
- @Override
- public MODEL convertToModel(PRESENTATION value,
- Class<? extends MODEL> targetType, Locale locale)
- throws com.vaadin.v7.data.util.converter.Converter.ConversionException {
- return realConverter.convertToPresentation(value, targetType, locale);
- }
-
- /*
- * (non-Javadoc)
- *
- * @see
- * com.vaadin.data.util.converter.Converter#convertToPresentation(java.lang
- * .Object, java.util.Locale)
- */
- @Override
- public PRESENTATION convertToPresentation(MODEL value,
- Class<? extends PRESENTATION> targetType, Locale locale)
- throws com.vaadin.v7.data.util.converter.Converter.ConversionException {
- return realConverter.convertToModel(value, targetType, locale);
- }
-
- /*
- * (non-Javadoc)
- *
- * @see com.vaadin.data.util.converter.Converter#getSourceType()
- */
- @Override
- public Class<MODEL> getModelType() {
- return realConverter.getPresentationType();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see com.vaadin.data.util.converter.Converter#getTargetType()
- */
- @Override
- public Class<PRESENTATION> getPresentationType() {
- return realConverter.getModelType();
- }
-
- }
|