expression evaluator

[santosh tiwari]

i am trying to create an expression evaluator in java which takes input from a

text file or a user input screen and compare the values with the attributes of an

object in memory thus returning a boolean indicating whether or not the critaria

is satisfied or not .the problem i am facing is to get the name of the field .i

am assuming that the class which will be evaluated with this program have a function

to return the value of the desired field but facing a problem of getting the field

name .please suggest some readings and sites to provide me some info about this

topic

thank you

santosh

[Ajay Raina]

if it is just getting the field name, you can do that using

reflection mechanism.


java.lang.Class has the apis to get the fields, constructors and methods

in a particular object.