org.springframework.expression.spel.ast

## Class AstUtils

- java.lang.Object
- - org.springframework.expression.spel.ast.AstUtils

-     public class AstUtils
      extends Object

  Utilities methods for use in the Ast classes.
  Since:
    3.0.2
  Author:
    Andy Clement

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `AstUtils()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static List<PropertyAccessor>` | `getPropertyAccessorsToTry(Class<?> targetType, List<PropertyAccessor> propertyAccessors)` Determines the set of property resolvers that should be used to try and access a property on the specified target type.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### AstUtils

          public AstUtils()

  - ### Method Detail

    - #### getPropertyAccessorsToTry

          public static List<PropertyAccessor> getPropertyAccessorsToTry(Class<?> targetType,
                                                         List<PropertyAccessor> propertyAccessors)

      Determines the set of property resolvers that should be used to try and access a property on the specified target type. The resolvers are considered to be in an ordered list, however in the returned list any that are exact matches for the input target type (as opposed to 'general' resolvers that could work for any type) are placed at the start of the list. In addition, there are specific resolvers that exactly name the class in question and resolvers that name a specific class but it is a supertype of the class we have. These are put at the end of the specific resolvers set and will be tried after exactly matching accessors but before generic accessors.
      Parameters:
        `targetType` - the type upon which property access is being attempted
      Returns:
        a list of resolvers that should be tried in order to access the property