Interface BeanExpressionResolver

All Known Implementing Classes:

StandardBeanExpressionResolver

public interface BeanExpressionResolver

Strategy interface for resolving a value by evaluating it as an expression, if applicable.

A raw BeanFactory does not contain a default implementation of this strategy. However, ApplicationContext implementations will provide expression support out of the box.

Since:

3.0

Author:

Juergen Hoeller

Method Summary

Modifier and Type	Method	Description
@Nullable Object	evaluate(@Nullable String value, BeanExpressionContext beanExpressionContext)	Evaluate the given value as an expression, if applicable; return the value as-is otherwise.

Method Details

evaluate

@Nullable Object evaluate(@Nullable String value,
 BeanExpressionContext beanExpressionContext)
                   throws BeansException

Evaluate the given value as an expression, if applicable; return the value as-is otherwise.

Parameters:

value - the value to evaluate as an expression

beanExpressionContext - the bean expression context to use when evaluating the expression

Returns:

the resolved value (potentially the given value as-is)

Throws:

BeansException - if evaluation failed