public class PriceFilter implements Predicate {

  private int lowValue, highValue;
  private String attributeName = null;
  private int attributeIndex = -1;
    
  public PriceFilter(int lowValue, int highValue, String attributeName) {
    this.lowValue = lowValue;
    this.highValue = highValue;
    this.attributeName = attributeName;
  }

  public PriceFilter(int lowValue, int highValue, int attributeIndex) {
    this.lowValue = lowValue;
    this.highValue = highValue;
    this.attributeIndex = attributeIndex;
  }

  public boolean evaluate(Object value, String attributeName) {
    boolean result = true;
    if (attributeName.equalsIgnoreCase(this.attributeName)) {
      int attributeValue = ((Integer)value).intValue();
      if (attributeValue >= this.lowValue && attributeValue <= this.highValue) {
        return true;
      }
      return false;
    }
    return result;
  }

  public boolean evaluate(Object value, int attributeIndex) {
    boolean result = true;
    if (attributeIndex == this.attributeIndex)) {
      int attributeValue = ((Integer)value).intValue();
      if (attributeValue >= this.lowValue && attributeValue <= this.highValue) {
        return true;
      }
      return false;
    }
    return result;
  }

  public boolean evaluate (RowSet rowSet) {
    boolean result = false;
    CachedRowSet cachedRowSet = (CachedRowSet)rowSet;
    int attributeValue = -1;
    if (this.attributeName != null) {
      attributeValue = cachedRowSet.getInt(this.attributeName);
    } else if (this.attributeIndex > 0)) {
      attributeValue = cachedRowSet.getInt(this.attributeIndex);
    } else {
      return false;
    }
    if (attributeValue >= this.lowValue && attributeValue <= this.highValue) {
      result = true;
    }
    return result;
  }
}