src/main/java/org/apache/ws/scout/registry/infomodel/SlotImpl.java

/**
 *
 * 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);
    }
}