NotFileFilter.java

package org.apache.commons.io.filefilter;

import java.io.File;
import java.io.Serializable;

public class NotFileFilter extends AbstractFileFilter
  implements Serializable
{
  private final IOFileFilter filter;

  public NotFileFilter(IOFileFilter filter)
  {
    if (filter == null) {
      throw new IllegalArgumentException("The filter must not be null");
    }
    this.filter = filter;
  }

  public boolean accept(File file)
  {
    return !this.filter.accept(file);
  }

  public boolean accept(File file, String name)
  {
    return !this.filter.accept(file, name);
  }

  public String toString()
  {
    return super.toString() + "(" + this.filter.toString() + ")";
  }
}