Event sourcing and filtering for transient objects in a hierarchical object model
    1.
    发明授权
    Event sourcing and filtering for transient objects in a hierarchical object model 失效
    分层对象模型中的瞬态对象的事件源和过滤

    公开(公告)号:US06363435B1

    公开(公告)日:2002-03-26

    申请号:US09017988

    申请日:1998-02-03

    CPC classification number: G06F9/542 G06F11/3636

    Abstract: A single object functions as a centralized monitoring point for events fired in a hierarchical object model. Objects within the hierarchy register with the event monitoring object when they are created. These objects then route their events to the event monitoring object. A listening object also registers with the event monitoring object to receive notification upon the occurrence of certain events within the hierarchy. A property of the event monitoring object corresponding to a particular class of object is parameterized with an identifier that designates the events to be sourced to the listening object The event monitoring object couples the listening object to a filter object that sources only events designated by the parameterized property. The event monitoring creates the filter objects as needed. A filter object can report events to more than one listening object if the listening objects register to be notified of the same events.

    Abstract translation: 单个对象用作层次对象模型中触发的事件的集中监视点。 层次结构中的对象在创建事件监视对象时注册。 然后,这些对象将其事件路由到事件监视对象。 侦听对象还向事件监视对象注册,以在层次结构中发生某些事件时接收通知。 与特定类别的对象相对应的事件监视对象的属性被参数化,该标识符指定要发送到侦听对象的事件。事件监视对象将侦听对象耦合到仅源自被参数化的事件指定的事件的过滤器对象 属性。 事件监视根据需要创建过滤器对象。 如果侦听对象注册以通知相同的事件,则过滤器对象可以将事件报告给多个侦听对象。

    Alignment device for golf putting practices
    2.
    发明授权
    Alignment device for golf putting practices 失效
    高尔夫球练习对准装置

    公开(公告)号:US06371864B1

    公开(公告)日:2002-04-16

    申请号:US09576617

    申请日:2000-05-23

    Inventor: John M. Norwood

    CPC classification number: A63B69/3685 A63B69/3614

    Abstract: An apparatus and method for teaching golfers proper putting fundementals. The apparatus comprises a device which removably mounts over a putter head, projecting a laser beam on the plane perpendicular to the striking face of a putter just over the sweet spot. The apparatus also includes a means for the golfer to properly align the eyes vertically above the striking face. The laser beam is directed towards and on a linearly calibrated target strip. By directing a shot at various positions on the target strip while viewing the putter from a proper vertically aligned position, a golfer is able to learn to judge putting situations.

    Abstract translation: 一种教授高尔夫球手适当投入资金的设备和方法。 该装置包括可移除地安装在推杆头上的装置,将激光束投射在垂直于推杆的击打面的平面上,恰好在最佳点上。 该装置还包括用于高尔夫球手将眼睛垂直地对准在打击面上方的装置。 激光束被引导到线性校准的目标条上和之上。 通过在从适当的垂直对齐位置观看推杆的同时,在目标条上的各种位置进行射击,高尔夫球手能够学习判断放置情况。

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