de.cosmocode.rendering.MultimapValueRenderer.java Source code

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Here is the source code for de.cosmocode.rendering.MultimapValueRenderer.java

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/**
 * Copyright 2010 CosmoCode GmbH
 *
 * 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 de.cosmocode.rendering;

import javax.annotation.Nullable;

import com.google.common.collect.Multimap;

/**
 * Default {@link Multimap} {@link ValueRenderer}.
 *
 * @since 1.1
 * @author Willi Schoenborn
 */
public enum MultimapValueRenderer implements ValueRenderer<Multimap<?, ?>> {

    INSTANCE;

    @Override
    public void render(@Nullable Multimap<?, ?> value, Renderer r) throws RenderingException {
        if (value == null) {
            r.nullValue();
        } else {
            r.value(value.asMap());
        }
    }

    @Override
    public String toString() {
        return getClass().getSimpleName();
    }

}