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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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25 
26 package com.sun.corba.se.spi.orbutil.fsm ;
27 
28 import com.sun.corba.se.impl.orbutil.fsm.NameBase ;
29 
30 import java.util.Map ;
31 import java.util.HashMap ;
32 import java.util.Set ;
33 import java.util.HashSet ;
34 
35 import com.sun.corba.se.impl.orbutil.fsm.GuardedAction ;
36 import com.sun.corba.se.impl.orbutil.fsm.NameBase ;
37 
38 /** Base class for all states in a StateEngine.  This must be used
39 * as the base class for all states in transitions added to a StateEngine.
40 */
41 public class StateImpl extends NameBase implements State {
42     private Action defaultAction ;
43     private State defaultNextState ;
44     private Map inputToGuardedActions ;
45 
StateImpl( String name )46     public StateImpl( String name )
47     {
48         super( name ) ;
49         defaultAction = null ;
50         inputToGuardedActions = new HashMap() ;
51     }
52 
preAction( FSM fsm )53     public void preAction( FSM fsm )
54     {
55     }
56 
postAction( FSM fsm )57     public void postAction( FSM fsm )
58     {
59     }
60 
61     // Methods for use only by StateEngineImpl.
62 
getDefaultNextState()63     public State getDefaultNextState()
64     {
65         return defaultNextState ;
66     }
67 
setDefaultNextState( State defaultNextState )68     public void setDefaultNextState( State defaultNextState )
69     {
70         this.defaultNextState = defaultNextState ;
71     }
72 
getDefaultAction()73     public Action getDefaultAction()
74     {
75         return defaultAction ;
76     }
77 
setDefaultAction( Action defaultAction )78     public void setDefaultAction( Action defaultAction )
79     {
80         this.defaultAction = defaultAction ;
81     }
82 
addGuardedAction( Input in, GuardedAction ga )83     public void addGuardedAction( Input in, GuardedAction ga )
84     {
85         Set gas = (Set)inputToGuardedActions.get( in ) ;
86         if (gas == null) {
87             gas = new HashSet() ;
88             inputToGuardedActions.put( in, gas ) ;
89         }
90 
91         gas.add( ga ) ;
92     }
93 
getGuardedActions( Input in )94     public Set getGuardedActions( Input in )
95     {
96         return (Set)inputToGuardedActions.get( in ) ;
97     }
98 }
99