/**
* Cast the path to a subtype querytype
*
* @param <U>
* @param clazz
* @return
*/
@SuppressWarnings("unchecked")
public <U extends BeanPath<? extends T>> U as(Class<U> clazz) {
try {
if (!casts.containsKey(clazz)) {
PathMetadata<T> metadata;
if (pathMixin.getMetadata().getPathType() != PathType.COLLECTION_ANY) {
metadata = PathMetadataFactory.forDelegate(pathMixin);
} else {
metadata = (PathMetadata) pathMixin.getMetadata();
}
U rv;
// the inits for the subtype will be wider, if it's a variable path
if (inits != null && pathMixin.getMetadata().getPathType() != PathType.VARIABLE) {
rv =
clazz
.getConstructor(PathMetadata.class, PathInits.class)
.newInstance(metadata, inits);
} else {
rv = clazz.getConstructor(PathMetadata.class).newInstance(metadata);
}
casts.put(clazz, rv);
return rv;
} else {
return (U) casts.get(clazz);
}
} catch (InstantiationException e) {
throw new ExpressionException(e.getMessage(), e);
} catch (IllegalAccessException e) {
throw new ExpressionException(e.getMessage(), e);
} catch (InvocationTargetException e) {
throw new ExpressionException(e.getMessage(), e);
} catch (NoSuchMethodException e) {
throw new ExpressionException(e.getMessage(), e);
}
}
@Override
public Path<?> getRoot() {
return pathMixin.getRoot();
}
@Override
public AnnotatedElement getAnnotatedElement() {
return pathMixin.getAnnotatedElement();
}
@Override
public PathMetadata<?> getMetadata() {
return pathMixin.getMetadata();
}