/************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * *************************************************************/ #ifndef ADC_STMSTATE_HXX #define ADC_STMSTATE_HXX // USED SERVICES // BASE CLASSES // COMPONENTS // PARAMETERS class StmArrayStatus; class StmBoundsStatus; /** A StmStatus is a state within a StateMachine. There are two kinds of it. Either its an array of pointers to other states within the state machine - an ArrayStatus. Or it is a BoundsStatus, which shows, the token cannot be followed further within the StateMachine. **/ class StmStatus // := "State machine status" { public: typedef intt Branch; /// Values >= 0 give a next #Status' ID. /// Values <= 0 tell, that a token is finished. /// a value < 0 returns the status back to an upper level state machine. // LIFECYCLE virtual ~StmStatus() {} // OPERATIONS virtual StmArrayStatus * AsArray(); virtual StmBoundsStatus * AsBounds(); // INQUIRY virtual bool IsADefault() const = 0; }; #endif