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A collection of utility classes that might be useful.

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package cz.jalasoft.util.text;

import java.util.Iterator;
import java.util.List;

/**
 * Created by honzales on 18.4.15.
 */
public final class FragmentList implements Iterable {

    private final List collection;

    FragmentList(List collection) {
        this.collection = collection;
    }

    public boolean isEmpty() {
        return collection.isEmpty();
    }

    @Override
    public Iterator iterator() {
        return collection.iterator();
    }

    public T first() {
        if (collection.isEmpty()) {
            throw new IllegalStateException("Fragment list is empty.");
        }
        return collection.get(0);
    }

    public boolean hasJustOneFragment() {
        return size() == 1;
    }

    public int size() {
        return collection.size();
    }

    public T get(int index) {
        return collection.get(index);
    }
}