public QueryKey(String queryString,
    QueryParameters queryParameters,
    Set filters,
    EntityMode entityMode) 
{
		this.sqlQueryString = queryString;
		this.types = queryParameters.getPositionalParameterTypes();
		this.values = queryParameters.getPositionalParameterValues();
		RowSelection selection = queryParameters.getRowSelection();
		if (selection!=null) {
			firstRow = selection.getFirstRow();
			maxRows = selection.getMaxRows();
		}
		else {
			firstRow = null;
			maxRows = null;
		}
		this.namedParameters = queryParameters.getNamedParameters();
		this.entityMode = entityMode;
		this.filters = filters;
		this.customTransformer = queryParameters.getResultTransformer();
		this.hashCode = generateHashCode();
}

 public boolean equals(Object other) 
{
		if (!(other instanceof QueryKey)) return false;
		QueryKey that = (QueryKey) other;
		if ( !sqlQueryString.equals(that.sqlQueryString) ) return false;
		if ( !EqualsHelper.equals(firstRow, that.firstRow) || !EqualsHelper.equals(maxRows, that.maxRows) ) return false;
		if ( !EqualsHelper.equals(customTransformer, that.customTransformer) ) return false;
		if (types==null) {
			if (that.types!=null) return false;
		}
		else {
			if (that.types==null) return false;
			if ( types.length!=that.types.length ) return false;
			for ( int i=0; i< types.length; i++ ) {
				if ( types[i].getReturnedClass() != that.types[i].getReturnedClass() ) return false;
				if ( !types[i].isEqual( values[i], that.values[i], entityMode ) ) return false;
			}
		}
		if ( !EqualsHelper.equals(filters, that.filters) ) return false;
		if ( !EqualsHelper.equals(namedParameters, that.namedParameters) ) return false;
		return true;
}

 public int hashCode() 
{
		return hashCode;
}

 public String toString() 
{
		StringBuffer buf = new StringBuffer()
			.append("sql: ")
			.append(sqlQueryString);
		if (values!=null) {
			buf.append("; parameters: ");
			for (int i=0; i< values.length; i++) {
				buf.append( values[i] )
					.append(", ");
			}
		}
		if (namedParameters!=null) {
			buf.append("; named parameters: ")
				.append(namedParameters);
		}
		if (filters!=null) {
			buf.append("; filters: ")
				.append(filters);
		}
		if (firstRow!=null) buf.append("; first row: ").append(firstRow);
		if (maxRows!=null) buf.append("; max rows: ").append(maxRows);
		if (customTransformer!=null) buf.append("; transformer: ").append(customTransformer);
		return buf.toString();
}