Table of Contents
Java 5 (and hence AspectJ 5) allows you to specify methods that take a variable number of arguments of a specified type. This is achieved using an ellipsis (...) in the method signature as shown:
public void foo(int i, String... strings) {
}
A method or constructor may take at most one variable length argument, and this must always be the last declared argument in the signature.
A varargs method may be called with zero or more arguments in the variable argument position. For example, given the definition of foo above, the following calls are all legal:
foo(5); foo(5,"One String"); foo(7,"One String","Two Strings"); foo(3,"One String","Two Strings","Three Strings");
A varargs parameter is treated as an array within the defining member. So in the body of foo we could write for example:
public void foo(int i, String... strings) {
String[] someStrings = strings;
// rest of method body
}
One consequence of this treatment of a varargs parameter as an array is that you can also call a varargs method with an array:
foo(7,new String[] {"One String","Two Strings"});