I was using an enum in which the constant was a Class. I needed to invoke a method on the constant but could not introduce a compile time dependency and the enum was not always available at runtime (part of optional install). Therefore, I wanted to use reflection.
This is easy, but I hadn't used reflection with enums before.
The enum looked something like this:
public enum PropertyEnum {
SYSTEM_PROPERTY_ONE("property.one.name", "property.one.value"),
SYSTEM_PROPERTY_TWO("property.two.name", "property.two.value");
private String name;
private String defaultValue;
PropertyEnum(String name) {
this.name = name;
}
PropertyEnum(String name, String value) {
this.name = name;
this.defaultValue = value;
}
public String getName() {
return name;
}
public String getValue() {
return System.getProperty(name);
}
public String getDefaultValue() {
return defaultValue;
}
}
What is an example of invoking a method of the constant using reflection?