org.commonjava.web.json.model.MappingArray.java Source code

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Here is the source code for org.commonjava.web.json.model.MappingArray.java

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/*******************************************************************************
 * Copyright (c) 2014 Red Hat, Inc..
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.commonjava.web.json.model;

import static org.apache.commons.lang.StringUtils.join;

import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

public class MappingArray implements Iterable<String> {

    private String[] elements;

    public String[] getElements() {
        return elements;
    }

    public void setElements(final String[] elements) {
        this.elements = elements;
    }

    @Override
    public Iterator<String> iterator() {
        List<String> eltList;
        if (elements == null) {
            eltList = Collections.emptyList();
        } else {
            eltList = Arrays.asList(elements);
        }

        return eltList.iterator();
    }

    @Override
    public String toString() {
        return elements == null ? "-NONE-" : join(elements, ", ");
    }

}