private String[] availableTypeNames;
private Class[] availableTypes;
public AggregationTypePropertyEditor()
{
this.propertyChangeSupport = new PropertyChangeSupport(this);
final ExpressionMetaData[] allExpressionMetaDatas = ExpressionRegistry.getInstance().getAllExpressionMetaDatas();
final ArrayList<ExpressionMetaData> list = new ArrayList<ExpressionMetaData>();
list.add(null);
for (int i = 0; i < allExpressionMetaDatas.length; i++)
{