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1   package net.sourceforge.pmd.util.filter;
2   
3   /**
4    * A logical NEGATION of a Filter.
5    * 
6    * @param <T>
7    *            The underlying type on which the filter applies.
8    */
9   public class NotFilter<T> extends AbstractDelegateFilter<T> {
10  	public NotFilter() {
11  		super();
12  	}
13  
14  	public NotFilter(Filter<T> filter) {
15  		super(filter);
16  	}
17  
18  	public boolean filter(T obj) {
19  		return !filter.filter(obj);
20  	}
21  
22  	public String toString() {
23  		return "not (" + filter + ")";
24  	}
25  }