org.springframework.expression.spel.ast

Class AstUtils

java.lang.Object

org.springframework.expression.spel.ast.AstUtils

public abstract class AstUtils
extends java.lang.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

Modifier and Type	Method and Description
static java.util.List<PropertyAccessor>	getPropertyAccessorsToTry(java.lang.Class<?> targetType, java.util.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 java.util.List<PropertyAccessor> getPropertyAccessorsToTry(@Nullable
                                                                         java.lang.Class<?> targetType,
                                                                         java.util.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