public <T> T get(Scope scope, Contextual<T> contextual, CreationalContext<T> creationalContext) {
RequestContext ctx = currentContext.get();
if (ctx == null) throw new ContextNotActiveException();
if (!scope.isActive(ctx)) throw new ContextNotActiveException();
Object o = ctx.getContextualValue(scope, contextual);
if (o == null) {
if (creationalContext != null) {
o = contextual.create(creationalContext);
ctx.setContextualValue(scope, contextual, o);
}
}
return (T) o;
}
public boolean isActive(Scope scope) {
RequestContext ctx = currentContext.get();
if (ctx == null) throw new ContextNotActiveException();
return scope.isActive(ctx);
}