Java Doc for SAutomaton.java in  » Net » Terracotta » com » tc » jrexx » set » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Terracotta » com.tc.jrexx.set   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.tc.jrexx.set.SAutomaton All known Subclasses:   com.tc.jrexx.regex.PAutomaton, SAutomaton public class SAutomaton (Code) This class represents a (non-)deterministic final automaton (NFA/DFA). Use this class to create an automaton manually by adding states to the automaton and transitions to other states or to browse through the automaton's states and implement your own matching strategies. to create an automaton manually try import com.karneim.util.collection.set.*; public class Test { public static void main(String[] args) { SAutomaton automaton = new SAutomaton(); IStatePro s1 = automaton.addState(false); IStatePro s2 = automaton.addState(true); s1.addTransition(new CharSet ("0123456789"),s2); s2.addTransition(new CharSet("0123456789"),s2); automaton.setStartState(s1); } } to browse through the automaton's states try final IStatePro startState = automaton.getStartState(); final StateProSet states = new StateProSet(startState); final StateProSet.Iterator it = states.iterator(); for (IStatePro state=it.next(); state!=null; state=it.next()) { IStatePro.ITransition[] transitions = state.getTransitions(); for (int i=0; i transitions.length; ++i) { states.add(transitions[i].getToState()); System.out.println( "from " + transitions[i].getFromState() + " through " + transitions[i].getCharSet() + " to " + transitions[i].getToState() ); } } to implement own matching strategies try /** * returns true if input is an existing path through automaton's states * otherwise false. * public static boolean incompleteMatch(SAutomaton automaton,String input) { IState current = automaton.getStartState().visit(); for (int i=0; i input.length(); ++i) { current = current.next(input.charAt(i)); if (current == null) return false; } return true; } author:    Ralf Meyer version:    1.0 Inner Class :final class SAutomatonChangeListener implements Automaton.IChangedListener Inner Class :public interface IChangeListener Inner Class :protected class State implements IState Inner Class :protected class Transition implements IStatePro.ITransition Inner Class :protected class StatePro implements IStatePro Field Summary protected transient  AutomatonSet_String automaton      protected transient  Automaton.IChangedListener automatonChangedListener      protected transient  LinkedList listeners      protected transient  HashMap state2wrapper      protected transient  HashMap transition2wrapper      Constructor Summary public   SAutomaton()      public   SAutomaton(FSAData data)      public   SAutomaton(InputStream automatonDataStream)      protected   SAutomaton(AutomatonSet_String automaton)      Method Summary public  void addAll(SAutomaton automaton)      public  void addChangeListener(SAutomaton.IChangeListener listener)      Adds the specified listener to receive change events from this automaton. public  IStatePro addState()      Adds a new non final state to this automaton. public  IStatePro addState(boolean isFinal)      Adds a new final or non final state to this automaton. public  void clear()      Removes all states of this automaton. public  void complement()      protected  Automaton.IChangedListener getAutomatonChangedListener()      public  IStatePro getStartState()      Returns the current start state of the automaton. public  StateProSet getStates()      Returns all states of this automaton whatever they are reachable through the current start state or not. protected  void init(FSAData a)      public  boolean isDeterministic()      public  void minimize()      Minimizes this automaton as much as possible. public  void removeAll(SAutomaton automaton)      public  boolean removeChangeListener(SAutomaton.IChangeListener listener)      Removes the specified listener so that it no longer receives change events from this automaton. public  boolean removeState(IStatePro state)      Removes the specified state from this automaton. public  void retainAll(SAutomaton automaton)      public  void setStartState(IStatePro state)      Sets the automaton's start state to the specified state. public  FSAData toData()      public  void toData(OutputStream automatonDataStream)      protected static  FSAData toFSAData(Object obj)      public  String toString()      Field Detail automaton protected transient AutomatonSet_String automaton(Code) automatonChangedListener protected transient Automaton.IChangedListener automatonChangedListener(Code) listeners protected transient LinkedList listeners(Code) state2wrapper protected transient HashMap state2wrapper(Code) transition2wrapper protected transient HashMap transition2wrapper(Code) Constructor Detail SAutomaton public SAutomaton()(Code) Creates a new empty automaton SAutomaton public SAutomaton(FSAData data)(Code) SAutomaton public SAutomaton(InputStream automatonDataStream) throws IOException, ClassNotFoundException(Code) SAutomaton protected SAutomaton(AutomatonSet_String automaton)(Code) Method Detail addAll public void addAll(SAutomaton automaton)(Code) addChangeListener public void addChangeListener(SAutomaton.IChangeListener listener)(Code) Adds the specified listener to receive change events from this automaton. The listener will be registered as listener in any case, even if it has been registered yet. If a listener instance is added two times, it will receive events twice. important: don't forget to remove the listener, if you don't need it any longer but still have the automaton in use. Otherwise your listener won't be carbage collected (because it is registered with this automaton) and still will receive events. addState public IStatePro addState()(Code) Adds a new non final state to this automaton. a new state addState public IStatePro addState(boolean isFinal)(Code) Adds a new final or non final state to this automaton. a new state clear public void clear()(Code) Removes all states of this automaton. complement public void complement()(Code) getAutomatonChangedListener protected Automaton.IChangedListener getAutomatonChangedListener()(Code) getStartState public IStatePro getStartState()(Code) Returns the current start state of the automaton. important: The result is null, if and only if the current start state is null the current start state of the automaton getStates public StateProSet getStates()(Code) Returns all states of this automaton whatever they are reachable through the current start state or not. init protected void init(FSAData a)(Code) isDeterministic public boolean isDeterministic()(Code) minimize public void minimize()(Code) Minimizes this automaton as much as possible. The resulting automaton has as less states as possible. important: the current implementation removes all properties from all transitions removeAll public void removeAll(SAutomaton automaton)(Code) removeChangeListener public boolean removeChangeListener(SAutomaton.IChangeListener listener)(Code) Removes the specified listener so that it no longer receives change events from this automaton. If the listener instance is registered more than ones, only one instance will be removed. Parameters:   listener - true if the listener was registered else false removeState public boolean removeState(IStatePro state)(Code) Removes the specified state from this automaton. First all transitions pointing to state are removed and then the state itself. If state is this automaton's start state then first of all this automaton's start state is set to null. important: the specified state must have been created via the addState method of this automaton otherwise an IllegalArgumentException is thrown. Parameters:   state - true if this automaton owns the specified state else false retainAll public void retainAll(SAutomaton automaton)(Code) setStartState public void setStartState(IStatePro state)(Code) Sets the automaton's start state to the specified state. If the automaton should have no start state pass null. important: the specified state must be a state of this automaton which means a) the state must have been created via the addState() method of this automaton b) the state must not have been removed from this automaton via the removeState method Parameters:   state - toData public FSAData toData()(Code) toData public void toData(OutputStream automatonDataStream) throws IOException(Code) toFSAData protected static FSAData toFSAData(Object obj)(Code) toString public String toString()(Code) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)