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    <p>You need to create an interface that provides the function(s) that you want to pass around. eg:</p> <pre><code>/** * A simple interface to wrap up a function of one argument. * * @author rcreswick * */ public interface Function1&lt;S, T&gt; { /** * Evaluates this function on it's arguments. * * @param a The first argument. * @return The result. */ public S eval(T a); } </code></pre> <p>Then, when you need to pass a function, you can implement that interface:</p> <pre><code>List&lt;Integer&gt; result = CollectionUtilities.map(list, new Function1&lt;Integer, Integer&gt;() { @Override public Integer eval(Integer a) { return a * a; } }); </code></pre> <p>Finally, the map function uses the passed in Function1 as follows:</p> <pre><code> public static &lt;K,R,S,T&gt; Map&lt;K, R&gt; zipWith(Function2&lt;R,S,T&gt; fn, Map&lt;K, S&gt; m1, Map&lt;K, T&gt; m2, Map&lt;K, R&gt; results){ Set&lt;K&gt; keySet = new HashSet&lt;K&gt;(); keySet.addAll(m1.keySet()); keySet.addAll(m2.keySet()); results.clear(); for (K key : keySet) { results.put(key, fn.eval(m1.get(key), m2.get(key))); } return results; } </code></pre> <p>You can often use Runnable instead of your own interface if you don't need to pass in parameters, or you can use various other techniques to make the param count less "fixed" but it's usually a trade-off with type safety. (Or you can override the constructor for your function object to pass in the params that way.. there are lots of approaches, and some work better in certain circumstances.)</p>
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    1. COThis “answer” pertains more to the *problem set* than to the *solution set.* ☹
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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