From: Ben Houston (ben@exocortex.org)
Date: Fri Jul 20 2001 - 17:10:18 MDT
Ben Goertel said:
>In Java, you can't introspect to see the *runtime* state of an individual
>object (the ephemeral values with which local variables are instantiated).
>For this, we'd need a fundamentally different JVM.
You can query and modify values of objects in java at runtime. In fact, we
are doing it in the current project I am working on (this isn't a bluff or
grandstanding, we actually are). We are using the following classes that
are documented in the standard Java implementation:
Java.Lang.Class
http://java.sun.com/j2se/1.3/docs/api/java/lang/Class.html
- can be used to get a complete list of available Classes.
- can be used to instantiate new Classes of any type.
- used to query a Class for available Field and Methods
Java.Lang.Reflect.Method
http://java.sun.com/j2se/1.3/docs/api/java/lang/reflect/Method.html
- used to get info on a Method and even invoke it.
Java.Lang.Reflect.Field
http://java.sun.com/j2se/1.3/docs/api/java/lang/reflect/Field.html
- used to get info on a Field, get its value or change it.
Cheers,
-ben houston
http://www.exocortex.org/~ben
-----Original Message-----
From: owner-sl4@sysopmind.com [mailto:owner-sl4@sysopmind.com]On Behalf Of
Ben Goertzel
Sent: Friday, July 20, 2001 6:28 PM
To: sl4@sysopmind.com
Subject: RE: Languages and AI
> But it wouldn't be that hard to write up an XML parser that can
> modify/execute objects, methods or events using introspection -
> introspection is supported pretty well in both C# or Java.
In Java, you can't introspect to see the *runtime* state of an individual
object (the ephemeral values with which local variables are instantiated).
For this, we'd need a fundamentally different JVM.
Maybe this will be supplied in Pizza (which adds higher-order functions to
Java) or some other new-wave Java variant
Ben
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