com.google.gwt.text.client.IntegerRenderer.java Source code

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Here is the source code for com.google.gwt.text.client.IntegerRenderer.java

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/*
 * Copyright 2010 Google Inc.
 *
 * 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.google.gwt.text.client;

import com.google.gwt.i18n.client.NumberFormat;
import com.google.gwt.text.shared.AbstractRenderer;
import com.google.gwt.text.shared.Renderer;

/**
 * A localized renderer based on {@link NumberFormat#getDecimalFormat}.
 */
public class IntegerRenderer extends AbstractRenderer<Integer> {
    private static IntegerRenderer INSTANCE;

    /**
     * Returns the instance.
     */
    public static Renderer<Integer> instance() {
        if (INSTANCE == null) {
            INSTANCE = new IntegerRenderer();
        }
        return INSTANCE;
    }

    protected IntegerRenderer() {
    }

    public String render(Integer object) {
        if (null == object) {
            return "";
        }

        return NumberFormat.getDecimalFormat().format(object);
    }
}