使用Guava获取某一个类的指定超类上的泛型Type T

package com.geostar.gfstack.operationcenter.log.common.hibernate;

import com.geostar.gfstack.operationcenter.common.page.Page;
import com.geostar.gfstack.operationcenter.common.util.DBType;
import com.geostar.gfstack.operationcenter.common.util.StringUtil;
import com.google.common.reflect.TypeToken;
import org.apache.commons.collections.CollectionUtils;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.SessionFactory;

import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public abstract class MergeDao<T, ID extends Serializable> extends BaseDao<T, ID> {

    private Class<T> clazz;

......

    /**
     * 获取Model类型供hibernate实例化对象使用
     *
     * @return
     */
    public Class<T> getModelClass() {
        if (clazz == null) {
            TypeToken tt = TypeToken.of(this.getClass());
            TypeToken st = tt.getSupertype(MergeDao.class);
            clazz = (Class<T>) ((ParameterizedType) st.getType()).getActualTypeArguments()[0];
        }
        return clazz;
    }

......

}