IAstFactory (org.eclipse.xtext 2.30.0 API)

All Known Implementing Classes:

CardinalityAwareEcoreFactory, DefaultEcoreElementFactory
```
public interface IAstFactory
```
Responsible for instantiating and initializing the semantic model according to call backs from clients. Main (and only default) client is the parser.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(org.eclipse.emf.ecore.EObject _this, java.lang.String feature, java.lang.Object value, java.lang.String lexerRule, INode node)`	Adds a given value to a list described by the given feature.
`org.eclipse.emf.ecore.EObject`	`create(org.eclipse.emf.ecore.EClassifier clazz)`	Creates an instance of the given type which has to be an `EClass`.
`void`	`set(org.eclipse.emf.ecore.EObject _this, java.lang.String feature, java.lang.Object value, java.lang.String lexerRule, INode node)`	Assigns a given value to a feature of the element `_this`.

- Method Detail
  - create
```
org.eclipse.emf.ecore.EObject create(org.eclipse.emf.ecore.EClassifier clazz)
```
    Creates an instance of the given type which has to be an EClass.
    
    Parameters:
    
    clazz - the EClass to be instantiated.
    
    Returns:
    
    the instantiated EObject which must conform the given class.
  - set
```
void set(org.eclipse.emf.ecore.EObject _this,
         java.lang.String feature,
         java.lang.Object value,
         java.lang.String lexerRule,
         INode node)
  throws ValueConverterException
```
    Assigns a given value to a feature of the element _this. The value may be converted according to the optional lexer rule. The feature must be resolvable to a single value feature.
    
    Throws:
    
    ValueConverterException - if the value cannot be converted.
  - add
```
void add(org.eclipse.emf.ecore.EObject _this,
         java.lang.String feature,
         java.lang.Object value,
         java.lang.String lexerRule,
         INode node)
  throws ValueConverterException
```
    Adds a given value to a list described by the given feature. The list is owned by the element _this. The given value may be converted according to the optional lexer rule. The feature must be resolvable to a multi value feature.
    
    Throws:
    
    ValueConverterException - if the value cannot be converted.