eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/term/EmptyComboElement.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.ui.term;
  12
  13 import java.util.ArrayList;
  14 import java.util.List;
  15
  16 import org.eclipse.jface.util.PropertyChangeEvent;
  17
  18 import eu.etaxonomy.cdm.model.common.DefinedTermBase;
  19 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  20 import eu.etaxonomy.taxeditor.ui.forms.CdmFormFactory;
  21 import eu.etaxonomy.taxeditor.ui.forms.ICdmFormElement;
  22
  23 /**
  24  * <p>EmptyComboElement class.</p>
  25  *
  26  * @author n.hoffmann
  27  * @created Sep 29, 2010
  28  * @version 1.0
  29  */
  30 public class EmptyComboElement<T extends DefinedTermBase> extends AbstractTermComboElement<T> {
  31
  32         private static final int VISIBLE_ITEMS = 20;
  33
  34         private List<T> genericTerms = new ArrayList<T>();
  35
  36         /**
  37          * <p>Constructor for EmptyComboElement.</p>
  38          *
  39          * @param formFactory a {@link eu.etaxonomy.taxeditor.ui.forms.CdmFormFactory} object.
  40          * @param parentElement a {@link eu.etaxonomy.taxeditor.ui.forms.ICdmFormElement} object.
  41          * @param labelString a {@link java.lang.String} object.
  42          * @param style a int.
  43          * @param <T> a T object.
  44          */
  45         public EmptyComboElement(CdmFormFactory formFactory,
  46                         ICdmFormElement parentElement, String labelString,
  47                         int style) {
  48                 super(formFactory, parentElement, labelString, null, VISIBLE_ITEMS, style);
  49         }
  50
  51
  52         /* (non-Javadoc)
  53          * @see eu.etaxonomy.taxeditor.forms.term.AbstractTermComboElement#preferredTerms()
  54          */
  55         /** {@inheritDoc} */
  56         @Override
  57         protected List<T> preferredTerms() {
  58                 return genericTerms != null ? genericTerms : new ArrayList<T>();
  59         }
  60
  61
  62         /**
  63          * <p>setTerms</p>
  64          *
  65          * @param terms a {@link java.util.List} object.
  66          */
  67         public void setTerms(List<T> terms) {
  68                 if(terms == null){
  69                         throw new IllegalArgumentException("List of terms may not be null");
  70                 }
  71
  72                 this.genericTerms = terms;
  73                 propertyChange(new PropertyChangeEvent(this, PreferencesUtil.PREFERRED_TERMS_CHANGE, this.genericTerms, terms));
  74         }
  75 }