private boolean hasFilterTypeSupport(
final IControlPanelProvider<ELEMENT_VALUE_TYPE> controlPanel, final IFilterType filterType) {
if (controlPanel != null) {
final IFilterSupport<Object> filterSupport = controlPanel.getFilterSupport();
if (filterSupport != null) {
for (final IFilterPanelProvider<?> filterPanel : filterSupport.getFilterPanels()) {
if (NullCompatibleEquivalence.equals(filterType, filterPanel.getType())) {
return true;
}
}
}
}
return false;
}
@Override
public List<IFilterType> getSupportedFilterTypes() {
final Set<IFilterType> result = new LinkedHashSet<IFilterType>();
for (final IControlPanelProvider<ELEMENT_VALUE_TYPE> controlPanelProvider : controlPanels) {
final IFilterSupport<?> filterSupport = controlPanelProvider.getFilterSupport();
if (filterSupport != null) {
for (final IFilterPanelProvider<?> filterPanelProvider : filterSupport.getFilterPanels()) {
final IFilterType filterType = filterPanelProvider.getType();
result.add(filterType);
}
}
}
return new LinkedList<IFilterType>(result);
}
@Override
public IFilterPanelProvider<IOperator> getFilterPanelProvider(final IFilterType filterType) {
for (final IControlPanelProvider<ELEMENT_VALUE_TYPE> controlPanelProvider : controlPanels) {
final IFilterSupport<Object> filterSupport = controlPanelProvider.getFilterSupport();
if (filterSupport != null) {
for (final IFilterPanelProvider<IOperator> filterPanelProvider :
filterSupport.getFilterPanels()) {
if (filterType.equals(filterPanelProvider.getType())) {
return filterPanelProvider;
}
}
}
}
return null;
}