Coordinator.java 文件源码

/**
 * Gets the instance of the adapter.
 *
 * @return
 *      always non-null.
 */
public final <T extends XmlAdapter> T getAdapter(Class<T> key) {
    T v = key.cast(adapters.get(key));
    if(v==null) {
        v = ClassFactory.create(key);
        putAdapter(key,v);
    }
    return v;
}