Re: Using a variable as an enum value
In article
<b3f3b5e5-b6cb-4784-a482-1d3d72f382cd@i18g2000pro.googlegroups.com>,
RVic <rvince99@hotmail.com> wrote:
I have a class which has some
public enum GGFieldName {
RLEN("[0-9]{4}"),
CHG("[\\p{Alnum}]{1}");
private String regexp;
private GGFieldName(String aRegexp) { this.regexp = aRegexp;}
public String regexp() { return this.regexp;}
}
I have another class that has a member variable:
class MyClass {
String s;
}
And s can sometimes equal say the value in the enums of my
GGFieldName class, i.e. s.equals("RLEN") or s.equals("CHG").
How can I access then the regexp value corresponding to a given value
for s ? I have tried s.regexp() but fo course that wont even compile.
Thanks for your help.
<http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.9>
"In addition, if E is the name of an enum type, then that type has the
following implicitly declared static methods:
....
public static E[] values();
....
public static E valueOf(String name);"
So,
String s = "RLEN";
String r = GGFieldName.valueOf(s).regexp();
--
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>
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