org.springframework.expression

接口 ConstructorExecutor

所有已知实现类:

ReflectiveConstructorExecutor

public interface ConstructorExecutor

Executors are built by resolvers and can be cached by the infrastructure to repeat an operation quickly without going back to the resolvers. For example, the particular constructor to run on a class may be discovered by the reflection constructor resolver - it will then build a ConstructorExecutor that executes that constructor and the ConstructorExecutor can be reused without needing to go back to the resolver to discover the constructor again.

They can become stale, and in that case should throw an AccessException - this will cause the infrastructure to go back to the resolvers to ask for a new one.

从以下版本开始:

3.0

作者:

Andy Clement

方法概要

限定符和类型	方法和说明
TypedValue	execute(EvaluationContext context, Object... arguments) Execute a constructor in the specified context using the specified arguments.

方法详细资料

execute

TypedValue execute(EvaluationContext context,
                   Object... arguments)
            throws AccessException

Execute a constructor in the specified context using the specified arguments.

参数:

context - the evaluation context in which the command is being executed

arguments - the arguments to the constructor call, should match (in terms of number and type) whatever the command will need to run

返回:

the new object

抛出:

AccessException - if there is a problem executing the command or the CommandExecutor is no longer valid