/**

  *

  * Copyright 2004 The Apache Software Foundation

  *

  *  Licensed under the Apache License, Version 2.0 (the "License");

  *  you may not use this file except in compliance with the License.

  *  You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  *  Unless required by applicable law or agreed to in writing, software

  *  distributed under the License is distributed on an "AS IS" BASIS,

  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  *  See the License for the specific language governing permissions and

  *  limitations under the License.

  */

 package org.apache.ws.scout.registry.infomodel;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.HashSet;

 import javax.xml.registry.JAXRException;

 import javax.xml.registry.infomodel.Slot;

 /**

  * Implements Jaxr API

  *

  * @author <mailto:anil@apache.org>Anil Saldhana

  * @since Nov 20, 2004

  */

 public class SlotImpl implements Slot

 {

     private String slotType;

     private String name;

     private Collection<String> values;

     @SuppressWarnings("unchecked")

     public SlotImpl()

     {

         values = Collections.EMPTY_SET;

     }

     public String getName() throws JAXRException

     {

         return name;

     }

     public String getSlotType() throws JAXRException

     {

         return slotType;

     }

     public Collection<String> getValues() throws JAXRException

     {

         return values;

     }

     public void setName(String s) throws JAXRException

     {

         name = s;

     }

     public void setSlotType(String s) throws JAXRException

     {

         slotType = s;

     }

     public void setValues(Collection collection) throws JAXRException

     {

         if (collection == null)

         {

             throw new IllegalArgumentException("values cannot be null");

         }

         // "the value of a Slot is locally unique within a slot instance"

         // to enforce this, convert the supplied Collection to a Set

         values = new HashSet<String>(collection);

     }

     /**

      * Slots can be used in Collections but the spec does not define equals()

      * We define two slots with the same name as being equal as the spec says

      * name is unique within the scope of the RegistryObject.

      */

     public boolean equals(Object o)

     {

         if (this == o) return true;

         if (!(o instanceof SlotImpl)) return false;

         final SlotImpl slot = (SlotImpl) o;

         if (name != null ? !name.equals(slot.name) : slot.name != null) return false;

         return true;

     }

     public int hashCode()

     {

         return (name != null ? name.hashCode() : 0);

     }

 }