rspec/rules/S3053/java/rule.adoc
Fred Tingaud 16f6c0aecf
Inline adoc when include has no additional value (#1940)
Inline adoc files when they are included exactly once.

Also fix language tags because this inlining gives us better information
on what language the code is written in.
2023-05-25 14:18:12 +02:00

70 lines
1.2 KiB
Plaintext

== Why is this an issue?
If you've gone to the trouble of writing an ``++iterator++`` method in a class that doesn't implement ``++Iterable++``, that trivial omission is costing you half the benefit of the method because you can't use the class in enhanced ``++for++`` loops.
=== Noncompliant code example
[source,java]
----
public class MyList { // Noncompliant
public Iterator iterator() {
//...
}
}
public class MyClass {
public void doSomething(MyList myList) {
Iterator itr = myList.iterator();
while (itr.hasNext() {
Object obj = itr.next();
processObj(obj);
}
}
}
----
=== Compliant solution
[source,java]
----
public class MyList implements Iterable{
public Iterator iterator() {
//...
}
}
public class MyClass {
public void doSomething(MyList myList) {
for(Object obj : myList) {
processObj(obj);
}
}
}
----
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
=== Message
Add "implements Iterable" to this class signature.
'''
== Comments And Links
(visible only on this page)
=== on 12 Jun 2015, 13:37:49 Ann Campbell wrote:
CodePro: Implement Iterable
endif::env-github,rspecator-view[]