software.amazon.disco.agent.interception.templates

Class DataAccessor.ExceptionSafety

java.lang.Object

software.amazon.disco.agent.interception.templates.DataAccessor.ExceptionSafety

Enclosing class:

DataAccessor

public static class DataAccessor.ExceptionSafety
extends java.lang.Object

An Advice class to wrap generated methods in catch-all exception safety. Should any exception occur, such as a NullPointerException from unchecked method chaining, it will be silently suppressed, and the return value of the access method will be the default value for the return type i.e. 0 for primitive numbers, and null for reference types.

Constructor Summary

Constructors

Constructor and Description
ExceptionSafety()

Method Summary

Modifier and Type	Method and Description
static void	onMethodExit(java.lang.Throwable thrown) Advice on method exit, to rewrite any thrown exception to be null, and therefore suppressed

Methods inherited from class java.lang.Object

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

Constructor Detail

ExceptionSafety

public ExceptionSafety()

Method Detail

onMethodExit

@Advice.OnMethodExit(onThrowable=java.lang.Throwable.class)
public static void onMethodExit(@Advice.Thrown(readOnly=false)
                                                                                            java.lang.Throwable thrown)

Advice on method exit, to rewrite any thrown exception to be null, and therefore suppressed

Parameters:

thrown - the exception which was thrown, which will be suppressed