大家好，哪位高手能帮小弟我看看这个错：The type AppRoleDaoImpl must implement the inherited abstract meth

大家好，谁能帮我看看这个错：The type AppRoleDaoImpl must implement the inherited abstract meth

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// Decompiler options: packimports(3) 
// Source File Name:   AppRoleDaoImpl.java
package com.htsoft.oa.dao.system.impl;

import com.htsoft.core.dao.impl.BaseDaoImpl;
import com.htsoft.oa.dao.system.AppRoleDao;
import com.htsoft.oa.model.system.AppFunction;
import com.htsoft.oa.model.system.AppRole;
import com.htsoft.oa.model.system.FunUrl;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;

public  class AppRoleDaoImpl
extends BaseDaoImpl<AppRole>
implements AppRoleDao {
    public AppRoleDaoImpl() {
        super(AppRole.class);
    }

    public AppRole getByRoleName(String roleName) {
        String hql = "from AppRole ar where ar.roleName=?";
        return (AppRole)this.findUnique(hql, new Object[]{roleName});
    }

    public HashMap<String, Set<String>> getSecurityDataSource() {
        final HashMap source = new HashMap();
        this.getHibernateTemplate().execute((HibernateCallback)new HibernateCallback(){

            public Object doInHibernate(Session session) throws HibernateException, SQLException {
                String hql = "from AppRole";
                Query query = session.createQuery(hql);
                List<AppRole> roleList = query.list();
                for (AppRole role : roleList) {
                    TreeSet<String> urlSet = new TreeSet<String>();
                    for (AppFunction fun : role.getFunctions()) {
                        Iterator<FunUrl> urlIt = fun.getFunUrls().iterator();
                        while (urlIt.hasNext()) {
                            urlSet.add(urlIt.next().getUrlPath());
                        }
                    }
                    source.put(role.getName(), urlSet);
                }
                return null;
            }
        });
        return source;
    }

}

------解决思路----------------------
abstract method GenericDao<AppRole,Long>.get(Long)