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import java.util.ArrayList;
import java.util.Collection;
import lombok.Delegate;
public class DelegationExample {
private interface SimpleCollection {
boolean add(String item);
boolean remove(Object item);
}
@Delegate(types=SimpleCollection.class)
private final Collection<String> collection = new ArrayList<String>();
}
class ExcludesDelegateExample {
long counter = 0L;
private interface Add {
boolean add(String x);
boolean addAll(Collection<? extends String> x);
}
@Delegate(excludes=Add.class)
private final Collection<String> collection = new ArrayList<String>();
public boolean add(String item) {
counter++;
return collection.add(item);
}
public boolean addAll(Collection<? extends String> col) {
counter += col.size();
return collection.addAll(col);
}
}
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