Examples of org.apache.commons.beanutils.LazyDynaBean

org.apache.commons.beanutils.LazyDynaBean
DynaBean which automatically adds properties to the DynaClass and provides Lazy List and Lazy Map features.

DynaBeans deal with three types of properties - simple, indexed and mapped and have the following get() and set() methods for each of these types:
- Simple property methods - get(name) and set(name, value)
- Indexed property methods - get(name, index) and set(name, index, value)
- Mapped property methods - get(name, key) and set(name, key, value)
Getting Property Values

Calling any of the get() methods, for a property which doesn't exist, returns null in this implementation.

Setting Simple Properties

The LazyDynaBean will automatically add a property to the DynaClass if it doesn't exist when the set(name, value) method is called.
DynaBean myBean = new LazyDynaBean();
myBean.set("myProperty", "myValue");

Setting Indexed Properties

If the property doesn't exist, the LazyDynaBean will automatically add a property with an ArrayList type to the DynaClass when the set(name, index, value) method is called. It will also instantiate a new ArrayList and automatically grow the List so that it is big enough to accomodate the index being set. ArrayList is the default indexed property that LazyDynaBean uses but this can be easily changed by overriding the defaultIndexedProperty(name) method.
DynaBean myBean = new LazyDynaBean();
myBean.set("myIndexedProperty", 0, "myValue1");
myBean.set("myIndexedProperty", 1, "myValue2");

If the indexed property does exist in the DynaClass but is set to null in the LazyDynaBean, then it will instantiate a new List or Array as specified by the property's type in the DynaClass and automatically grow the List or Array so that it is big enough to accomodate the index being set.
DynaBean myBean = new LazyDynaBean();
MutableDynaClass myClass = (MutableDynaClass)myBean.getDynaClass();
myClass.add("myIndexedProperty", int[].class);
myBean.set("myIndexedProperty", 0, new Integer(10));
myBean.set("myIndexedProperty", 1, new Integer(20));

Setting Mapped Properties

If the property doesn't exist, the LazyDynaBean will automatically add a property with a HashMap type to the DynaClass and instantiate a new HashMap in the DynaBean when the set(name, key, value) method is called. HashMap is the default mapped property that LazyDynaBean uses but this can be easily changed by overriding the defaultMappedProperty(name) method.
DynaBean myBean = new LazyDynaBean();
myBean.set("myMappedProperty", "myKey", "myValue");

If the mapped property does exist in the DynaClass but is set to null in the LazyDynaBean, then it will instantiate a new Map as specified by the property's type in the DynaClass.
DynaBean myBean = new LazyDynaBean();
MutableDynaClass myClass = (MutableDynaClass)myBean.getDynaClass();
myClass.add("myMappedProperty", TreeMap.class);
myBean.set("myMappedProperty", "myKey", "myValue");

Restricted DynaClass

MutableDynaClass have a facility to restrict the DynaClass so that its properties cannot be modified. If the MutableDynaClass is restricted then calling any of the set() methods for a property which doesn't exist will result in a IllegalArgumentException being thrown.
@see LazyDynaClass @author Niall Pemberton

      beans = jdbcTemplate.query(sql, new RowMapper<LazyDynaBean>(){
        @Override
        public LazyDynaBean mapRow(ResultSet rs, int rowNum)
            throws SQLException {
          // TODO Auto-generated method stub
          LazyDynaBean bean = new LazyDynaBean();
          String id = rs.getString(1);
          String name = rs.getString(2);
          bean.set("id", id);
          bean.set("name", name);
          return bean;
        }      
      }, groupID);
    }
    catch(Exception e)

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  {
    List<Srole> roles = sroleDAO.findAll();
    List<LazyDynaBean> beans = new ArrayList<LazyDynaBean>();
    for(Srole role:roles)
    {
      LazyDynaBean bean = new LazyDynaBean();
      ObjectListConvert2DynaBeanList.convert(bean, role);
      bean.set("id", role.getAuthority());
      bean.set("text", role.getDescription());
      bean.set("type", "role");
      bean.set("leaf", "true");
      beans.add(bean);
    }
    return beans;
  }

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    String sql = "select a.authority from authorities a,users u where a.user_id=u.id and u.name=?";    
    authorities.addAll(jdbcTemplate.queryForList(sql,String.class,name));
    sql = "select ga.authority from group_authorities ga,group_members gm,users u "+
      "where ga.group_id=gm.group_id and gm.user_id = u.id and u.name=?";    
    authorities.addAll(jdbcTemplate.queryForList(sql,String.class,name));
    LazyDynaBean bean = new LazyDynaBean();
    bean.set("authority", authorities);
    result.setData(bean);
    result.setSucceed();
    return result;
  }

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    String sql = "select a.authority from authorities a where a.user_id=?";
    authorities.addAll(jdbcTemplate.queryForList(sql,String.class,userID));
    sql = "select ga.authority from group_authorities ga,group_members gm "+
      "where ga.group_id=gm.group_id and gm.user_id =?";
    authorities.addAll(jdbcTemplate.queryForList(sql,String.class,userID));
    LazyDynaBean bean = new LazyDynaBean();
    bean.set("authority", authorities);
    result.setData(bean);
    result.setSucceed();
    return result;
  }

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    List<Srole> roles = sroleDAO.findAll();
    List<LazyDynaBean> result = new ArrayList<LazyDynaBean>();
    
    for(Srole role:roles)
    {
      LazyDynaBean bean = new LazyDynaBean();
      ObjectListConvert2DynaBeanList.convert(bean, role);      
      if(user_authories.contains(role.getAuthority()))
      {
        bean.set("signal", true);
        bean.set("type", "user_authority");
      }
      else if(group_authories.contains(role.getAuthority()))
      {
        bean.set("signal", true);
        bean.set("type", "group_authority");
      }
      else
      {
        bean.set("signal", false);
        bean.set("type", "");
      }
      result.add(bean);
    }
    return result;
  }

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          {
            @Override
            public LazyDynaBean mapRow(ResultSet rs, int rowNum)
                throws SQLException {
              // TODO Auto-generated method stub
              LazyDynaBean bean = new LazyDynaBean();
              bean.set("authority", rs.getString(1));
              bean.set("description", rs.getString(2));
              return bean;
            }        
          },userID);
    }
    catch(Exception e)

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      return result;
    }
    List<String> authorities = new ArrayList<String>();
    String sql = "select authority from group_authorities where group_id=?";
    authorities.addAll(jdbcTemplate.queryForList(sql,String.class,groupID));
    LazyDynaBean bean = new LazyDynaBean();
    bean.set("authority", authorities);
    result.setData(bean);
    result.setSucceed();
    return result;
  }

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    List<Srole> roles = sroleDAO.findAll();
    List<LazyDynaBean>result = new ArrayList<LazyDynaBean>();
    for(Srole role:roles)
    {
      LazyDynaBean bean = new LazyDynaBean();
      ObjectListConvert2DynaBeanList.convert(bean, role);
      if(authorities.contains(role.getAuthority()))
      {
        bean.set("signal", true);
      }
      else
      {
        bean.set("signal", false);
      }
      result.add(bean);
    }
    return result;
  }

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      List<LazyDynaBean>beans = jdbcTemplate.query(sql, new RowMapper<LazyDynaBean>(){
        @Override
        public LazyDynaBean mapRow(ResultSet rs, int rowNum)
            throws SQLException {
          // TODO Auto-generated method stub
          LazyDynaBean bean = new LazyDynaBean();
          bean.set("resource_id", rs.getString(1));
          bean.set("description", rs.getString(2));
          bean.set("method", rs.getString(3));
          bean.set("expression", rs.getString(4));
          bean.set("status", rs.getBoolean(5));
          return bean;
        }
        
      }, categoryID);
      result.setData(beans);

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      return result;
    }
    ResAccess resAccess = resAccessDAO.findById(resourceID);
    if(resAccess!=null)
    {
      LazyDynaBean resultBean = ObjectListConvert2DynaBeanList.convert(resAccess);
      String expression = resAccess.getExpression();
      


//        获得所有角色列表，并标识该角色是否拥有该资源
      List<Srole>tmpRoles = sroleDAO.findAll();
      List<LazyDynaBean>roles = new ArrayList<LazyDynaBean>();
      for(Srole role:tmpRoles)
      {
        LazyDynaBean bean = ObjectListConvert2DynaBeanList.convert(role);
        if(isRoleInResExpression(role.getAuthority(), expression))
          bean.set("signal", true);
        else bean.set("signal", false);
        roles.add(bean);
      }
      resultBean.set("roles", roles);//设置资源对应的角色信息
      resultBean.set("sigleSelection", getSSInfo4Expression(expression));//一些单选信息
      resultBean.set("ip", getIpInfo4Expression(expression));//ip信息
      result.setData(resultBean);
    }
//      result.setData(ObjectListConvert2DynaBeanList.convert(resAccess));
    else
    {
      ResAccess tmp = new ResAccess();
      tmp.setResourceId(resourceID);
      tmp.setStatus(false);
      LazyDynaBean resultBean = ObjectListConvert2DynaBeanList.convert(tmp);
      List<Srole>tmpRoles = sroleDAO.findAll();
      List<LazyDynaBean>roles = new ArrayList<LazyDynaBean>();
      for(Srole role:tmpRoles)
      {
        LazyDynaBean bean = ObjectListConvert2DynaBeanList.convert(role);
        bean.set("signal", false);
        roles.add(bean);
      }
      resultBean.set("roles", roles);//设置资源对应的角色信息
      resultBean.set("sigleSelection", 0);//一些单选信息
      resultBean.set("ip", "");//ip信息

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