/*
 * Copyright 2005-2010 the original author or authors.
 * 
 * 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.wamblee.security.authorization;

import javax.persistence.DiscriminatorColumn;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.persistence.Version;

/**
 * Service to determine if access to a certain resource is allowed.
 * 
 * @author Erik Brakkee
 */
@Entity
@Table(name = "SEC_AUTH_SVC")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "TYPE")
@NamedQueries( 
    @NamedQuery(name = AbstractAuthorizationService.QUERY_FIND_BY_NAME, 
        query = "select s from AbstractAuthorizationService s where s.name = :" +
        AbstractAuthorizationService.NAME_PARAM)
        )
public abstract class AbstractAuthorizationService implements AuthorizationService {
 
    public static final String QUERY_FIND_BY_NAME = "AuthorizationService.findByName";
    public static final String NAME_PARAM = "name";
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Version
    private int version;
    
    /**
     * Name for this instance of the authorization service.
     */
    private String name; 
    
    public AbstractAuthorizationService() { 
        // Empty. 
    }
    
    public AbstractAuthorizationService(String aName) { 
        name = aName; 
    }
    
    public AbstractAuthorizationService(AbstractAuthorizationService aSvc) { 
        id = aSvc.id;
        version = aSvc.version;
        name = aSvc.name;
    }
    
    public String getName() {
        return name;
    }
}