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package bjc.funcdata;
import java.util.List;
/**
* A list that logs when items are inserted into it.
*
* @author bjculkin
*
* @param <T>
* The type of item in the list.
*/
public class SentryList<T> extends FunctionalList<T> {
/** Create a new sentry list. */
public SentryList() {
super();
}
/**
* Create a new sentry list backed by an existing list.
*
* @param backing
* The backing list.
*/
public SentryList(final List<T> backing) {
super(backing);
}
@Override
public boolean add(final T item) {
final boolean val = super.add(item);
if(val) {
System.out.println("Added item (" + item + ") to list");
}
return val;
}
}
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