公开(公告)号：US07627547B2

公开(公告)日：2009-12-01

申请号：US10999864

申请日：2004-11-29

申请人： Namit Jain ,  Fei Ge ,  Ravi Murthy ,  Subramanian Muralidhar ,  Nipun Agarwal ,  Eric Sedlar

发明人： Namit Jain ,  Fei Ge ,  Ravi Murthy ,  Subramanian Muralidhar ,  Nipun Agarwal ,  Eric Sedlar

IPC分类号： G06F7/00

CPC分类号： G06F17/30091 ,  G06F17/30233 ,  Y10S707/99931

摘要： A method and apparatus for processing path-based database operations is provided. According to one aspect, a “parent row ID” column is added to a directory links table. For each row in the table, the value of the “parent row ID” column indicates the row ID, in the table, of the node that is that row's node's parent in the file hierarchy. To determine whether a particular node is within a specified path of the file hierarchy, the particular node's pathname is derived by visiting child-to-parent links indicated in the table and prepending, to the front of a pathname being constructed for the particular node, node names indicated in the visited rows. Each parent node's row in the directory links table is located using the “parent row ID” column of the child node's row. The resulting pathname is compared with the specified path to determine whether the particular node exists therein.

摘要翻译： 提供了一种用于处理基于路径的数据库操作的方法和装置。 根据一个方面，将“父行ID”列添加到目录链接表。 对于表中的每一行，“父行ID”列的值表示表中该行的文件层次结构中该节点的父节点的行ID。 为了确定特定节点是否在文件层次结构的指定路径内，特定节点的路径名是通过访问表中指示的前后的子对象链接导出到为特定节点构建的路径名的前面， 访问行中指示的节点名称。 目录链接表中的每个父节点的行都使用子节点行的“父行ID”列进行定位。 将得到的路径名与指定的路径进行比较，以确定特定节点是否存在于其中。

公开(公告)号：US20060129584A1

公开(公告)日：2006-06-15

申请号：US11014502

申请日：2004-12-15

申请人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

发明人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

IPC分类号： G06F17/00

CPC分类号： G06F17/30067 ,  G06F9/542

摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.

摘要翻译： 提供了一种用于响应于文件系统事件执行动作的方法和装置。 根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。 每个事件监听器包含一组“事件处理程序”。 每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。 当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。 与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。 在列表中的事件处理程序被调用时，执行与这些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。

公开(公告)号：US08176007B2

公开(公告)日：2012-05-08

申请号：US13026131

申请日：2011-02-11

申请人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

发明人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

IPC分类号： G06F7/00

CPC分类号： G06F17/30067 ,  G06F9/542

摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.

摘要翻译： 提供了一种用于响应于文件系统事件执行动作的方法和装置。 根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。 每个事件监听器包含一组“事件处理程序”。每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。 当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。 与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。 在列表中的事件处理程序被调用时，执行与那些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。

公开(公告)号：US07921076B2

公开(公告)日：2011-04-05

申请号：US11014502

申请日：2004-12-15

申请人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

发明人： Thuvan Hoang ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

IPC分类号： G06F7/00

CPC分类号： G06F17/30067 ,  G06F9/542

摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.

摘要翻译： 提供了一种用于响应于文件系统事件执行动作的方法和装置。 根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。 每个事件监听器包含一组“事件处理程序”。每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。 当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。 与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。 在列表中的事件处理程序被调用时，执行与那些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。

公开(公告)号：US07610304B2

公开(公告)日：2009-10-27

申请号：US11294894

申请日：2005-12-05

申请人： Namit Jain ,  Nipun Agarwal ,  Ravi Murthy ,  Syam Pannala ,  Vikram Kapoor ,  Eric Sedlar

发明人： Namit Jain ,  Nipun Agarwal ,  Ravi Murthy ,  Syam Pannala ,  Vikram Kapoor ,  Eric Sedlar

IPC分类号： G06F17/30 ,  G06F15/16

CPC分类号： G06F17/30504 ,  G06F17/30115 ,  Y10S707/99931 ,  Y10S707/99943

摘要： A method and apparatus for performing file system operations involving a link is provided. A request to perform a file system operation involving a link is received from a client at a database server. The link may establish a relationship a source resource has to a target resource. The source resource and the target resource may be stored within a repository implemented by a storage medium, such as a database. The database server may perform the file system operation by storing, in the database, one or more link records that identifies the link between the first resource and the second resource. File system operations, such as a NFS file system operation, which involve links may be performed at a database management system.

摘要翻译： 提供一种用于执行涉及链接的文件系统操作的方法和装置。 从数据库服务器的客户端接收到执行涉及链接的文件系统操作的请求。 该链接可以建立源资源与目标资源的关系。 源资源和目标资源可以存储在由诸如数据库的存储介质实现的存储库中。 数据库服务器可以通过在数据库中存储标识第一资源和第二资源之间的链接的一个或多个链接记录来执行文件系统操作。 可以在数据库管理系统中执行涉及链接的诸如NFS文件系统操作的文件系统操作。

公开(公告)号：US20060136516A1

公开(公告)日：2006-06-22

申请号：US11013890

申请日：2004-12-16

申请人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

发明人： Namit Jain ,  Sam Idicula ,  Syam Pannala ,  Nipun Agarwal ,  Ravi Murthy ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F17/30171 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A method and apparatus for providing file system operation locks at a database server is provided. A database server may employ database locks and file system operation locks in servicing requests from consistent requestors and inconsistent requesters. A database lock is a lock that is obtained in response to performing a database operation, and the database lock is released when the database operation has successfully completed. A file system operation lock is a lock that is obtained in response to performing an OPEN file system operation, and the file system operation lock is released when a CLOSE file system operation is performed. The database server may use a temporary copy of the resource, which reflects all the current changes that have been made to the resource by database operations, in servicing consistent requestors, and may use the original version of the resource in servicing inconsistent requesters.

公开(公告)号：US20060136508A1

公开(公告)日：2006-06-22

申请号：US11013519

申请日：2004-12-16

申请人： Sam Idicula ,  Namit Jain ,  Syam Pannala ,  Vasudha Krishnaswamy ,  Eric Sedlar ,  Nipun Agarwal ,  Bipul Sinha ,  Ravi Murthy

发明人： Sam Idicula ,  Namit Jain ,  Syam Pannala ,  Vasudha Krishnaswamy ,  Eric Sedlar ,  Nipun Agarwal ,  Bipul Sinha ,  Ravi Murthy

IPC分类号： G06F17/30

CPC分类号： G06F16/1774

摘要： A method and apparatus for performing file system operation locks at a database server is provided. A request to perform a file operation on a portion of a file managed by a database server is received at the database server. In response to receiving the request, the database server grants a lock that covers only a portion of the file that is involved in the file operation. For example, the database server may grant a lock that covers a range of bytes on the file, where the range of bytes is less than the entire file. Thereafter, the database server performs the file operation on the file. The file operation may be a NFS operation.

摘要翻译： 提供了一种用于在数据库服务器执行文件系统操作锁定的方法和装置。 在数据库服务器处接收对由数据库服务器管理的文件的一部分执行文件操作的请求。 响应于接收到该请求，数据库服务器授予仅覆盖文件操作中涉及的文件的一部分的锁。 例如，数据库服务器可以授予覆盖文件范围的字节的锁，其中字节的范围小于整个文件。 此后，数据库服务器对文件执行文件操作。 文件操作可能是NFS操作。

公开(公告)号：US07051033B2

公开(公告)日：2006-05-23

申请号：US10260384

申请日：2002-09-27

申请人： Nipun Agarwal ,  Eric Sedlar ,  Ravi Murthy ,  Namit Jain

发明人： Nipun Agarwal ,  Eric Sedlar ,  Ravi Murthy ,  Namit Jain

IPC分类号： G06F17/30 ,  G06F17/00

CPC分类号： G06F17/30595 ,  G06F17/30917 ,  Y10S707/99931 ,  Y10S707/99933 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99945

摘要： A hierarchy may be explicitly or implicitly reflected in existing data maintained external to hierarchy structures. Such hierarchies are referred to herein as a “pre-existing hierarchies”. Techniques are described herein for capturing a pre-existing hierarchy in hierarchy structures. After a pre-existing hierarchy has been captured, there exist two independent sets of data that reflect the hierarchy: the external hierarchy definition and the internal hierarchy definition. Changing either hierarchy definition changes the hierarchy. Therefore, to maintain a consistent reflection of the hierarchy, the internal hierarchy definition must be modified in response to changes made to the external hierarchy definition, and the external hierarchy definition must be modified in response to changes made to the internal hierarchy definition. Various techniques are described for maintaining consistency between the two hierarchy definitions.

公开(公告)号：US20060101041A1

公开(公告)日：2006-05-11

申请号：US11315835

申请日：2005-12-21

申请人： Nipun Agarwal ,  Eric Sedlar ,  Ravi Murthy ,  Namit Jain

发明人： Nipun Agarwal ,  Eric Sedlar ,  Ravi Murthy ,  Namit Jain

IPC分类号： G06F7/00

CPC分类号： G06F17/30595 ,  G06F17/30917 ,  Y10S707/99931 ,  Y10S707/99933 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99945

摘要： A hierarchy may be explicitly or implicitly reflected in existing data maintained external to hierarchy structures. Such hierarchies are referred to herein as a “pre-existing hierarchies”. Techniques are described herein for capturing a pre-existing hierarchy in hierarchy structures. After a pre-existing hierarchy has been captured, there exist two independent sets of data that reflect the hierarchy: the external hierarchy definition and the internal hierarchy definition. Changing either hierarchy definition changes the hierarchy. Therefore, to maintain a consistent reflection of the hierarchy, the internal hierarchy definition must be modified in response to changes made to the external hierarchy definition, and the external hierarchy definition must be modified in response to changes made to the internal hierarchy definition. Various techniques are described for maintaining consistency between the two hierarchy definitions.

公开(公告)号：US20110137963A1

公开(公告)日：2011-06-09

申请号：US13026131

申请日：2011-02-11

申请人： Thuvan HOANG ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

发明人： Thuvan HOANG ,  Sam Idicula ,  Nipun Agarwal ,  Ravi Murthy ,  Asha Tarachandani ,  Namit Jain ,  Eric Sedlar

IPC分类号： G06F17/30

CPC分类号： G06F17/30067 ,  G06F9/542

摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.

摘要翻译： 提供了一种用于响应于文件系统事件执行动作的方法和装置。 根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。 每个事件监听器包含一组“事件处理程序”。每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。 当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。 与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。 在列表中的事件处理程序被调用时，执行与那些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。