EDIT

	@Override

	public List<UuidAndTitleCache<Reference>> getUuidAndAbbrevTitleCache(

			Integer limit, String pattern) {

		return defaultService.getUuidAndAbbrevTitleCache(limit, pattern);

	}

package eu.etaxonomy.taxeditor.ui.dialog.selection;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

import eu.etaxonomy.cdm.api.conversation.ConversationHolder;

import eu.etaxonomy.cdm.api.service.IReferenceService;

import eu.etaxonomy.cdm.model.reference.Reference;

import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.ui.dialog.selection.CdmFilteredItemsSelectionDialog.ItemsFilter;

public class NomenclaturalReferenceSelectionDialog extends

		ReferenceSelectionDialog {

	protected NomenclaturalReferenceSelectionDialog(Shell shell,

			ConversationHolder conversation, String title, boolean multi,

			Reference reference) {

		super(shell, conversation, title, multi, reference);

		// TODO Auto-generated constructor stub

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.taxeditor.dialogs.AbstractFilteredCdmResourceSelectionDialog#initModel()

	 */

	/** {@inheritDoc} */

	@Override

	protected void initModel() {

	    Control control = getPatternControl();

        String pattern = null;

        if (control != null){

            pattern = ((Text)control).getText();

        }

		model = CdmStore.getService(IReferenceService.class).getUuidAndAbbrevTitleCache(limitOfInitialElements, pattern);

	}

	/**

	 * <p>select</p>

	 *

	 * @param reference a {@link eu.etaxonomy.cdm.model.reference.ReferenceBase} object.

	 * @param shell a {@link org.eclipse.swt.widgets.Shell} object.

	 * @param conversation a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder} object.

	 * @return a {@link eu.etaxonomy.cdm.model.reference.ReferenceBase} object.

	 */

	public static Reference select(Shell shell, ConversationHolder conversation, Reference reference) {

		NomenclaturalReferenceSelectionDialog dialog = new NomenclaturalReferenceSelectionDialog(shell, conversation,

				"Choose a reference", false, reference);

		return getSelectionFromDialog(dialog);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.ui.dialogs.FilteredItemsSelectionDialog#createFilter()

	 */

	/** {@inheritDoc} */

	@Override

	protected ItemsFilter createFilter() {

		return new ItemsFilter() {

			/**

			 * Always returns false to enforce refiltering even if the pattern is equal

			 */

			@Override

			public boolean equalsFilter(ItemsFilter filter) {

				return false;

			}

			@Override

			public boolean isConsistentItem(Object item) {

				return false;

			}

			@Override

			public boolean matchItem(Object item) {

				String text = null;

				if(item instanceof UuidAndTitleCache){

					text = ((UuidAndTitleCache) item).getAbbrevTitleCache();

				}else if(item instanceof String){

					text = (String) item;

				}

				return text != null ? matches(text) : false;

			}

		};

	}

}

import eu.etaxonomy.taxeditor.ui.section.reference.NomenclaturalReferenceDetailElement;

		if(clazz.equals(Reference.class) && parentElement instanceof NomenclaturalReferenceDetailElement){

			return (T) NomenclaturalReferenceSelectionDialog.select(shell, conversation, (Reference) currentSelection);

		}