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This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

% start by loading the design pattern sample implementations:

| ?- logtalk_load(design_patterns('behavioral/chain_of_responsibility/loader')). ...

% try some purchasing requests of varying amount:

| ?- manager::process_request(3500).

Manager will approve 3500 yes

| ?- manager::process_request(6500).

Director will approve 6500 yes

| ?- manager::process_request(11500).

Vice President will approve 11500 yes

| ?- manager::process_request(27000).

President will approve 27000 yes

| ?- manager::process_request(32000).

Request denied for 32000 no