OptionalModel (Woodstox 6.2.8 API)

java.lang.Object
- com.ctc.wstx.dtd.ModelNode
- - com.ctc.wstx.dtd.OptionalModel

```
public class OptionalModel
extends ModelNode
```
Content specification class that represents an optional specification. Optional specifications are generally a result of '?' arity marker, and are created when ContentSpec.rewrite() is called on a specification with '?' arity modifier.

Field Summary

Fields
Modifier and Type Field Description

(package private) ModelNode mModel

Constructor Summary

Constructors
Constructor Description

OptionalModel(ModelNode model)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addFirstPos(java.util.BitSet pos)`
`void`	`addLastPos(java.util.BitSet pos)`
`void`	`calcFollowPos(java.util.BitSet[] followPosSets)`
`ModelNode`	`cloneModel()`	Method that has to create a deep copy of the model, without sharing any of existing Objects.
`void`	`indexTokens(java.util.List<TokenModel> tokens)`
`boolean`	`isNullable()`
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - mModel
```
ModelNode mModel
```
- Constructor Detail
  - OptionalModel
```
public OptionalModel(ModelNode model)
```
- Method Detail
  - cloneModel
```
public ModelNode cloneModel()
```
    Method that has to create a deep copy of the model, without sharing any of existing Objects.
    
    Specified by:
    
    cloneModel in class ModelNode
  - isNullable
```
public boolean isNullable()
```
    Specified by:
    
    isNullable in class ModelNode
  - indexTokens
```
public void indexTokens(java.util.List<TokenModel> tokens)
```
    Specified by:
    
    indexTokens in class ModelNode
  - addFirstPos
```
public void addFirstPos(java.util.BitSet pos)
```
    Specified by:
    
    addFirstPos in class ModelNode
  - addLastPos
```
public void addLastPos(java.util.BitSet pos)
```
    Specified by:
    
    addLastPos in class ModelNode
  - calcFollowPos
```
public void calcFollowPos(java.util.BitSet[] followPosSets)
```
    Specified by:
    
    calcFollowPos in class ModelNode
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object