EnsurableFactory.java

package org.easyb.delegates;

/**
 * this class is needed it seems to support compilation--
 * we've hit a wall with using groovy and java together in
 * different directories creating a circular dependency; hence,
 * this factory is used as an interface so this java code can be
 * first compiled followed by some Groovy code that uses it.
 *
 * @author aglover
 */
public class EnsurableFactory {

    private static final Class FLEXIBLE_DELEGATE;

    //ostensibly this should be done once but
    //it seems the newInstance() call is slower than
    //forName.
    static {
        try {
            FLEXIBLE_DELEGATE = Class.forName("org.easyb.delegates.RichEnsureProxyDelegate");
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("can't load fundamental class to easyb");
        }
    }

    /**
     * this factory method needs to be thought out-- could we
     * end up creating different types of delegates that could be
     * plugged in at runtime? If so the static stuff above must
     * go!
     */
    public static RichlyEnsurable manufacture() throws Exception {
        return (RichlyEnsurable) FLEXIBLE_DELEGATE.newInstance();
    }
}