Class State
Automaton state.
Note
This API is experimental and might change in incompatible ways in the next release.
Implements
Inherited Members
Namespace: Lucene.Net.Util.Automaton
Assembly: Lucene.Net.dll
Syntax
public class State : IComparable<State>Constructors
State()
Constructs a new state. Initially, the new state is a reject state.
Declaration
public State()Properties
Accept
Sets acceptance for this state. If true, this state is an accept state.
Declaration
public virtual bool Accept { get; set; }Property Value
| Type | Description |
|---|---|
| bool |
NumTransitions
Automaton state.
Note
This API is experimental and might change in incompatible ways in the next release.
Declaration
public virtual int NumTransitions { get; }Property Value
| Type | Description |
|---|---|
| int |
Number
Return this state's number.
Expert: Will be useless unless GetNumberedStates() has been called first to number the states.Declaration
public virtual int Number { get; }Property Value
| Type | Description |
|---|---|
| int | The number. |
TransitionsArray
Automaton state.
Note
This API is experimental and might change in incompatible ways in the next release.
Declaration
public Transition[] TransitionsArray { get; }Property Value
| Type | Description |
|---|---|
| Transition[] |
Methods
AddTransition(Transition)
Adds an outgoing transition.
Declaration
public virtual void AddTransition(Transition t)Parameters
| Type | Name | Description |
|---|---|---|
| Transition | t | Transition. |
CompareTo(State)
Compares this object with the specified object for order. States are ordered by the time of construction.
Declaration
public virtual int CompareTo(State s)Parameters
| Type | Name | Description |
|---|---|---|
| State | s |
Returns
| Type | Description |
|---|---|
| int |
GetHashCode()
Serves as the default hash function.
Declaration
public override int GetHashCode()Returns
| Type | Description |
|---|---|
| int | A hash code for the current object. |
Overrides
GetTransitions()
Returns the set of outgoing transitions. Subsequent changes are reflected in the automaton.
Declaration
public virtual IEnumerable<Transition> GetTransitions()Returns
| Type | Description |
|---|---|
| IEnumerable<Transition> | Transition set. |
Reduce()
Reduces this state. A state is "reduced" by combining overlapping and adjacent edge intervals with same destination.
Declaration
public virtual void Reduce()SetTransitions(Transition[])
Automaton state.
Note
This API is experimental and might change in incompatible ways in the next release.
Declaration
public virtual void SetTransitions(Transition[] transitions)Parameters
| Type | Name | Description |
|---|---|---|
| Transition[] | transitions |
SortTransitions(IComparer<Transition>)
Returns sorted list of outgoing transitions.
Declaration
public virtual void SortTransitions(IComparer<Transition> comparer)Parameters
| Type | Name | Description |
|---|---|---|
| IComparer<Transition> | comparer | Comparer to sort with. |
Step(int)
Performs lookup in transitions, assuming determinism.
Declaration
public virtual State Step(int c)Parameters
| Type | Name | Description |
|---|---|---|
| int | c | Codepoint to look up. |
Returns
| Type | Description |
|---|---|
| State | Destination state, |
See Also
Step(int, ICollection<State>)
Performs lookup in transitions, allowing nondeterminism.
Declaration
public virtual void Step(int c, ICollection<State> dest)Parameters
| Type | Name | Description |
|---|---|---|
| int | c | Codepoint to look up. |
| ICollection<State> | dest | Collection where destination states are stored. |
See Also
ToString()
Returns string describing this state. Normally invoked via ToString().
Declaration
public override string ToString()Returns
| Type | Description |
|---|---|
| string |
Overrides
TrimTransitionsArray()
Downsizes transitionArray to numTransitions.
Declaration
public virtual void TrimTransitionsArray()