com.colinalworth.celltable.columns.client.converters.NumberConverter.java Source code

Introduction

Here is the source code for com.colinalworth.celltable.columns.client.converters.NumberConverter.java

Source

/**
 *  Copyright 2011 Colin Alworth
 * 
 *  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.colinalworth.celltable.columns.client.converters;

import com.colinalworth.celltable.columns.client.DataConverter;
import com.google.gwt.i18n.client.NumberFormat;

/**
 * Simple {@link DataConverter} implementation for reading Number objects and
 * displaying/editing the data.
 * 
 */
public class NumberConverter implements DataConverter<Number, String> {
    public Number fromCellToModel(String cell) {
        return "".equals(cell) ? null : NumberFormat.getDecimalFormat().parse(cell);
    }

    public String fromModelToCell(Number model) {
        return model == null ? "" : NumberFormat.getDecimalFormat().format(model);
    }
}