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1. 发明授权

US06598094B1 Method and apparatus for determining status of remote objects in a distributed system 失效
标题翻译：用于确定分布式系统中远程对象状态的方法和装置
公开(公告)号：US06598094B1
公开(公告)日：2003-07-22
申请号：US09044790
申请日：1998-03-20
申请人： Ann M. Wollrath , Peter C. Jones
发明人： Ann M. Wollrath , Peter C. Jones
IPC分类号： G06F946
CPC分类号： G06F12/0261
摘要： Systems consistent with the present invention a method and apparatus is provided for selectively supplying a state change associated with remote objects in a distributed system. The method involves registering a request from a computational entity to receive notification as to a state change associated with a remote object. Registration of a notification request causes the creation of a remote weak reference to the remote object including an identifier of a location of the remote object. Periodically, a request is sent to a location based on the identifier of the remote weak reference. When it is determined that a state change associated with the remote object has occurred, the registered computational entity is notified accordingly.
摘要翻译：与本发明一致的系统提供了一种方法和装置，用于选择性地提供与分布式系统中的远程对象相关联的状态改变。该方法涉及从计算实体注册请求以接收关于与远程对象相关联的状态改变的通知。通知请求的注册导致创建远程对象的远程弱引用，包括远程对象的位置的标识符。定期地，基于远程弱引用的标识符将请求发送到位置。当确定与远程对象相关联的状态改变已经发生时，相应地通知注册的计算实体。

2. 发明授权

US06487607B1 Methods and apparatus for remote method invocation 失效
标题翻译：远程方法调用的方法和装置
公开(公告)号：US06487607B1
公开(公告)日：2002-11-26
申请号：US09044938
申请日：1998-03-20
申请人： Ann M. Wollrath , Peter C. Jones
发明人： Ann M. Wollrath , Peter C. Jones
IPC分类号： G06F1300
CPC分类号： G06F17/30607 , G06F9/52 , G06F9/547 , G06F9/548 , H04L12/433 , H04L67/42
摘要： Remote method invocation using a generic proxy class. A client machine transmits a call for invocation of a method of a remote object including an identifier for the method object. A server machine receives the identifier and uses generic code to invoke the method object and return an indication of the invoked method along with any relevant parameters.
摘要翻译：使用通用代理类进行远程方法调用。客户端机器发送用于调用包括方法对象的标识符的远程对象的方法的调用。服务器机器接收标识符并使用通用代码来调用方法对象，并返回调用方法的指示以及任何相关参数。

3. 发明授权

US06446070B1 Method and apparatus for dynamic distributed computing over a network 失效
标题翻译：通过网络进行动态分布式计算的方法和装置
公开(公告)号：US06446070B1
公开(公告)日：2002-09-03
申请号：US09030840
申请日：1998-02-26
申请人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
发明人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
IPC分类号： G06F900
CPC分类号： G06F9/547 , G06F9/5044 , G06F9/505 , G06F9/52 , G06F2209/549 , Y10S707/99938
摘要： A homogeneous execution environment operates within a heterogeneous client-server network. A client selects a server and transmits a procedure call with parameters. In response, the system dynamically and securely downloads code to a compute server; invokes a generic compute method; executes the code on the compute server; and returns the results to the calling client method, preserving the result on the compute server if requested. This technique is efficient in that it does not require multiple copies of code to be downloaded or compiled since server byte-codes can be executed on each of the different systems. The code can be compiled once and downloaded as needed to the various servers as byte-codes and then executed.
摘要翻译：均匀的执行环境在异构的客户端 - 服务器网络内运行。客户端选择一个服务器并发送具有参数的过程调用。作为响应，系统动态安全地将代码下载到计算服务器; 调用通用计算方法; 执行计算服务器上的代码; 并将结果返回给调用客户端方法，如果请求，则在计算服务器上保留结果。这种技术是有效的，因为不需要下载或编译多个代码副本，因为可以在每个不同的系统上执行服务器字节码。代码可以编译一次，并根据需要下载到各种服务器作为字节代码，然后执行。

4. 发明授权

US06253256B1 Deferred reconstruction of objects and remote loading in a distributed system 失效
标题翻译：对象的延迟重建和分布式系统中的远程加载
公开(公告)号：US06253256B1
公开(公告)日：2001-06-26
申请号：US08950756
申请日：1997-10-15
申请人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold , Peter C. Jones
发明人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold , Peter C. Jones
IPC分类号： G06F1300
CPC分类号： G06F9/542 , G06F9/548
摘要： A method and system for transmitting objects in an object-oriented distributed system allows the reconstruction of objects and downloading of code associated with such object reconstruction to be deferred until it is needed by a program. The deferred reconstruction is accomplished by using a Java object called a “marshalled object,” which is a self-describing stream and which is a first-class entity in the system, meaning that it exists within a type system of a programming language and can be accessed and manipulated by instructions written in that language. Such an object can typically be produced by any object that can be passed from one address space to another, and it can be stored, passed to other objects, or used to reconstruct an object of the original type on demand. The reconstruction of an object is deferred until the code holding a marshalled object directly calls the creation of the object using the marshalled object. Any downloading of code is also deferred until the marshalled object is used to create a copy of the original object.
摘要翻译：用于在面向对象的分布式系统中传送对象的方法和系统允许对对象的重建和与这样的对象重建相关联的代码的下载被推迟直到程序需要。延迟重建通过使用称为“编组对象”的Java对象来实现，该对象是自描述流，并且是系统中的第一类实体，意味着它存在于编程语言的类型系统中，并且可以通过用该语言编写的指令进行访问和操作。这样的对象通常可以由可以从一个地址空间传递到另一个地址空间的任何对象来生成，并且可以将其存储，传递给其他对象，或用于根据需要重建原始类型的对象。一个对象的重建被推迟，直到保持编组对象的代码直接使用编组对象来调用对象的创建。代码的任何下载也被推迟到使用编组的对象来创建原始对象的副本。

5. 发明授权

US6134603A Method and system for deterministic hashes to identify remote methods 失效
公开(公告)号：US6134603A
公开(公告)日：2000-10-17
申请号：US45652
申请日：1998-03-20
申请人： Peter C. Jones , Ann M. Wollrath , Robert W. Scheifler
发明人： Peter C. Jones , Ann M. Wollrath , Robert W. Scheifler
IPC分类号： G06F9/46 , G06F13/00
CPC分类号： G06F9/548
摘要： A method and system is provided to uniquely identify a remote method to invoke on a server using a hash value computed from the method signature sent from the client to the server with the call request. When a client wishes to invoke a remote method located on a server, the client sends a hash value identifying the remote method to the server in the "remote method invocation" (RMI) call. In one implementation, this hash value is created by applying a hash function to the method string name and the parameter type list and possibly the return type. When the server receives the RMI call, the server identifies which method is being called using the received hash value. The server maintains a mapping of hash values to their associated remote methods located on the server and references the correct method using the hash value. Additionally, in one implementation, the server creates the mapping table dynamically when a remote object is created. The server identifies the methods implemented by the object and creates hash values for each method. These hash values are stored in a mapping table which is used to reference the remote methods.

6. 发明授权

US07296275B2 Method and system for passing objects in a distributed system using serialization contexts 有权
标题翻译：使用序列化上下文在分布式系统中传递对象的方法和系统
公开(公告)号：US07296275B2
公开(公告)日：2007-11-13
申请号：US09753686
申请日：2001-01-04
申请人： Adrian E. Colley , Peter C. Jones , Robert W. Schiefler , Michael P. Warres , Ann M. Wollrath
发明人： Adrian E. Colley , Peter C. Jones , Robert W. Schiefler , Michael P. Warres , Ann M. Wollrath
IPC分类号： G06F9/46
CPC分类号： G06F9/548
摘要： A system consistent with the present invention reduces the number of redundant class descriptors that are sent during remote method calls by using serialization contexts. “Serialization contexts” are dictionary objects that map a class descriptor to a corresponding integer handle. When possible, the integer handle, rather than the full class descriptor, is passed, saving processing time in RMI calls.
摘要翻译：与本发明一致的系统通过使用序列化上下文来减少在远程方法调用期间发送的冗余类描述符的数量。 “序列化上下文”是将类描述符映射到相应的整数句柄的字典对象。如果可能，传递整数句柄而不是完整的类描述符，从而在RMI调用中节省处理时间。

7. 发明授权

US07210148B2 Method and apparatus for dynamic distributed computing over a network 有权
标题翻译：通过网络进行动态分布式计算的方法和装置
公开(公告)号：US07210148B2
公开(公告)日：2007-04-24
申请号：US09809201
申请日：2001-03-16
申请人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
发明人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
IPC分类号： G06F9/44 , G06F15/16
CPC分类号： G06F9/547 , G06F9/5044 , G06F9/505 , G06F9/52 , G06F2209/549 , Y10S707/99938
摘要： A homogeneous execution environment operates within a heterogeneous client-server network. A client selects a server and transmits a procedure call with parameters. In response, a server dynamically and securely downloads code to a compute server; invokes a generic compute method; executes the code on the compute server; and returns the results to the calling client method, preserving the result on the compute server if requested. This technique is efficient in that it does not require multiple copies of code to be downloaded or compiled since server byte-codes can be executed on each of the different systems, therefore downloading or compiling multiple copies of code can be avoided. The code can be compiled once and downloaded as needed to the various servers as byte-codes and then executed.
摘要翻译：均匀的执行环境在异构的客户端 - 服务器网络内运行。客户端选择一个服务器并发送具有参数的过程调用。作为响应，服务器动态安全地将代码下载到计算服务器; 调用通用计算方法; 执行计算服务器上的代码; 并将结果返回给调用客户端方法，如果请求，则在计算服务器上保留结果。这种技术是有效的，因为不需要下载或编译多个代码副本，因为可以在每个不同的系统上执行服务器字节码，因此可以避免下载或编译多个代码副本。代码可以编译一次，并根据需要下载到各种服务器作为字节代码，然后执行。

8. 发明授权

US06877163B1 Method and system for dynamic proxy classes 有权
标题翻译：动态代理类的方法和系统
公开(公告)号：US06877163B1
公开(公告)日：2005-04-05
申请号：US09332029
申请日：1999-06-14
申请人： Peter C. Jones , Ann M. Wollrath , Robert W. Scheifler
发明人： Peter C. Jones , Ann M. Wollrath , Robert W. Scheifler
IPC分类号： G06F9/46 , G06F9/00
CPC分类号： G06F9/548
摘要： In an object-oriented data processing system, methods and systems in accordance with the present invention provide a proxy class dynamically generated at runtime that implements a list of interfaces specified at runtime such that a method invocation through an interface on an instance of the class is encoded and dispatched uniformly to an object that performs the invocation of the requested method. The generation of the proxy class at runtime and the specification at runtime of the list of interfaces implemented by the proxy class allow the interfaces to be used to be chosen at runtime before generation of the proxy class. Since the proxy class does not need to be created before compile time, the interface list implemented by the proxy class does not need to be known at the time the source code is written.
摘要翻译：在面向对象的数据处理系统中，根据本发明的方法和系统提供在运行时动态生成的代理类，其实现在运行时指定的接口的列表，使得通过类的实例上的接口的方法调用是编码并统一调度到执行请求方法调用的对象。运行时代理类的生成以及由代理类实现的接口列表的运行时的规范允许在生成代理类之前在运行时选择接口。由于代理类不需要在编译之前被创建，因此代理类实现的接口列表在编写源代码时不需要知道。

9. 发明授权

US06272559B1 Deferred reconstruction of objects and remote loading for event notification in a distributed system 失效
标题翻译：在分布式系统中延迟重建对象和远程加载事件通知
公开(公告)号：US06272559B1
公开(公告)日：2001-08-07
申请号：US09044919
申请日：1998-03-20
申请人： Peter C. Jones , Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
发明人： Peter C. Jones , Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
IPC分类号： G06G1300
CPC分类号： G06F9/542 , G06F9/548
摘要： Event notification in a distributed system using an object maintained in serialized form, referred to as a marshalled object. For event notification, a machine registers with a device to receive notification of particular events within a network, and a marshalled object is transmitted with a registration request.
摘要翻译：使用以序列化形式维护的对象的分布式系统中的事件通知，称为编组对象。对于事件通知，机器向设备注册以接收网络内的特定事件的通知，并且通过注册请求发送编组的对象。

10. 发明授权

US06957427B1 Remote object activation in a distributed system 失效
标题翻译：分布式系统中的远程对象激活
公开(公告)号：US06957427B1
公开(公告)日：2005-10-18
申请号：US08950760
申请日：1997-10-15
申请人： Ann M. Wollrath , Peter C. Jones , James H. Waldo , Robert W. Scheifler
发明人： Ann M. Wollrath , Peter C. Jones , James H. Waldo , Robert W. Scheifler
IPC分类号： G06F9/44 , G06F9/46 , G06F17/00
CPC分类号： G06F9/548
摘要： A distributed computer system uses a single interface at the client site to handle calls to call both active and passive remote objects. Accordingly, the calling process does not need to be aware of distinctions between active and passive objects. Further, remote objects are aggregated into common groups of objects, thereby providing greater security between objects of disparate groups and efficiency between related objects of the same group. Preferably, different groups are run on different Java virtual machines.
摘要翻译：分布式计算机系统在客户端站点使用单个接口来处理调用主动和被动远程对象的调用。因此，调用过程不需要意识到主动对象和被动对象之间的区别。此外，远程对象被聚合成公共对象组，从而在不同组的对象之间提供更高的安全性并且在相同组的相关对象之间提供效率。优选地，不同的组在不同的Java虚拟机上运行。

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