Module jdk.jshell

Package jdk.jshell.execution

Class JdiExecutionControl

java.lang.Object

jdk.jshell.execution.StreamingExecutionControl

jdk.jshell.execution.JdiExecutionControl

所有已实现的接口:

AutoCloseable, ExecutionControl

直接已知的子类:

JdiDefaultExecutionControl

       public abstract class JdiExecutionControl extends StreamingExecutionControl implements ExecutionControl
      

ExecutionControl的抽象JDI实现。

自JDK版本:

9

Nested Class Summary

Nested classes/interfaces declared in interface jdk.jshell.spi.ExecutionControl

ExecutionControl.ClassBytecodes, ExecutionControl.ClassInstallException, ExecutionControl.EngineTerminationException, ExecutionControl.ExecutionControlException, ExecutionControl.InternalException, ExecutionControl.NotImplementedException, ExecutionControl.ResolutionException, ExecutionControl.RunException, ExecutionControl.StoppedException, ExecutionControl.UserException

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JdiExecutionControl(ObjectOutput out, ObjectInput in)	创建一个实例。

Method Summary

Modifier and Type	Method	Description
void	redefine(ExecutionControl.ClassBytecodes[] cbcs)	重新定义指定的类。
protected ReferenceType	referenceType(VirtualMachine vm, String name)	返回与指定类名对应的JDI ReferenceType。
protected abstract VirtualMachine	vm()	返回JDI VirtualMachine实例。

Methods declared in class jdk.jshell.execution.StreamingExecutionControl

addToClasspath, close, extensionCommand, invoke, load, stop, varValue

Methods declared in class java.lang.Object

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

Methods declared in interface jdk.jshell.spi.ExecutionControl

addToClasspath, close, extensionCommand, invoke, load, stop, varValue

Constructor Details

JdiExecutionControl

             protected JdiExecutionControl(ObjectOutput out, ObjectInput in)
            

创建一个实例。

参数:

out - 来自远程代理的输出

in - 发送到远程代理的输入

Method Details

vm

             protected abstract VirtualMachine vm() throws ExecutionControl.EngineTerminationException
            

返回JDI VirtualMachine实例。

返回:

虚拟机

抛出:

ExecutionControl.EngineTerminationException - 如果虚拟机已死机/断开连接

redefine

             public void redefine(ExecutionControl.ClassBytecodes[] cbcs) throws ExecutionControl.ClassInstallException, ExecutionControl.EngineTerminationException
            

重新定义指定的类。其中'redefine'是指JDI和JVMTI中的就地替换类（保留类标识）--也就是说，对类的现有引用不需要重新编译。此实现使用JDI VirtualMachine.redefineClasses(java.util.Map)。如果类的签名已更改（请参阅JDI规范），则将无法成功。JShell核心被设计为适应重新定义失败。

指定者:

redefine 在接口 ExecutionControl

参数:

cbcs - 要重新定义的类名和字节码

抛出:

ExecutionControl.ClassInstallException - 重新定义类时发生异常，一些或全部类未被重新定义

ExecutionControl.EngineTerminationException - 执行引擎已终止

referenceType

             protected ReferenceType referenceType(VirtualMachine vm, String name)
            

返回与指定类名对应的JDI ReferenceType。

参数:

vm - 由vm()返回的当前JDI VirtualMachine

name - 要查找的类名

返回:

相应的ReferenceType