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;
    }
}