package org.kuali.ole.describe.keyvalue;
   
   import org.kuali.ole.describe.bo.OleShelvingScheme;
   import org.kuali.rice.core.api.util.ConcreteKeyValue;
   import org.kuali.rice.core.api.util.KeyValue;
   import org.kuali.rice.krad.keyvalues.KeyValuesBase;
   import org.kuali.rice.krad.service.KRADServiceLocator;
   
   import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  /**
   * ShelvingScheme used to render the values for ShelvingScheme dropdown control.
   */
  public class ShelvingScheme extends KeyValuesBase {
      /**
       * This method returns the List of ConcreteKeyValue,
       * ConcreteKeyValue has two arguments shelvingSchemeCode and
       * shelvingSchemeName.
       *
       * @return List<KeyValue>
       */
      @Override
      public List<KeyValue> getKeyValues() {
          List<KeyValue> options = new ArrayList<KeyValue>();
          Collection<OleShelvingScheme> oleShelvingSchemes = KRADServiceLocator.getBusinessObjectService().findAll(OleShelvingScheme.class);
          // options.add(new ConcreteKeyValue("", ""));
          for (OleShelvingScheme type : oleShelvingSchemes) {
              if (type.isActive()) {
                  options.add(new ConcreteKeyValue(type.getShelvingSchemeCode(), type.getShelvingSchemeName()));
              }
          }
          return options;
      }
  }