Clemens Szyperski

A method and system for maintaining isolated data in an application is disclosed which data to be selectively isolated until a data client orders the changes to be committed or abandoned. A computer-readable medium for constructing an application capable of localized data isolation is also disclosed. An application specification is used to determine which data entities should be isolated, and one or more transaction transforms are implemented for each data entity to be isolated.

An observation system includes mechanisms for efficiently tracking the state of source components, which include functions, arguments, or values, etc. In one implementation, an observing component requests that a source component processes a request. The observation system then identifies all possible components in a dependency chain for the request, and all such components that are configured for change notifications. A dependency registry stores a representation of each identified component… Show more

An observation system includes mechanisms for efficiently tracking the state of source components, which include functions, arguments, or values, etc. In one implementation, an observing component requests that a source component processes a request. The observation system then identifies all possible components in a dependency chain for the request, and all such components that are configured for change notifications. A dependency registry stores a representation of each identified component that is configured for change notifications. Any time any component configured for change notifications changes, including indirectly related components, the observing component can be immediately notified of the change, without having to reprocess the entire set of component dependencies. Show less

Embodiments are directed to dynamically building software applications and dynamically updating software applications based on changed data values. In one embodiment, a computer system receives an indication that a software application is to be initiated. The computer system also receives an application description including tags describing software objects that are to be included in the software application, automatically maps portions of the application description identified by the tags to… Show more

Embodiments are directed to dynamically building software applications and dynamically updating software applications based on changed data values. In one embodiment, a computer system receives an indication that a software application is to be initiated. The computer system also receives an application description including tags describing software objects that are to be included in the software application, automatically maps portions of the application description identified by the tags to software objects using reflection, where the reflecting includes accessing properties associated with the software objects, and automatically binds properties of the software objects to the portions of the application description based declarative rules included in the software object properties associated with the software object. Show less

The present invention relates to an XML application framework (XAF). XAF applications are data driven such that all operations with the computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how the data is displayed and what type of data is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an… Show more

The present invention relates to an XML application framework (XAF). XAF applications are data driven such that all operations with the computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how the data is displayed and what type of data is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an action module. The action module generates a standard format action from the UI event and sends it to the data connector. The data connector translates the standard format action into a data-specific action that changes data in a data store. A data connector then sends a standard format data representation corresponding to the changed data back to the UI connector to provide the changed data to the UI. Show less

Component domains used to define a binding between various components associated with the component domain. The component domain tracks the various services to be imported by each component, and tracks the various services exported by each component. At runtime, rather than at compile time, the various interrelations between the components are bound using the service import and export data. Accordingly, depending on the components available and their characteristics, the bindings may differ… Show more

Component domains used to define a binding between various components associated with the component domain. The component domain tracks the various services to be imported by each component, and tracks the various services exported by each component. At runtime, rather than at compile time, the various interrelations between the components are bound using the service import and export data. Accordingly, depending on the components available and their characteristics, the bindings may differ. This permits applications to be much more flexible. In one implementation, the binding is performed iteratively. For example, if after one iteration of binding service imports to service exports, some components may expand the services that they export, or the services that they desire to import. Show less

Providing for read/write access to captured free variables expressed as environment data objects is disclosed herein. By way of example, free variables can be rewritten as a field of a private class, and accessed via an instance of the private class captured within the environment data object. In such a manner, no need of a placeholder or proxy function is required to access the free variable. Consequently, the subject innovation provides a simplified method for capturing free variables within… Show more

Providing for read/write access to captured free variables expressed as environment data objects is disclosed herein. By way of example, free variables can be rewritten as a field of a private class, and accessed via an instance of the private class captured within the environment data object. In such a manner, no need of a placeholder or proxy function is required to access the free variable. Consequently, the subject innovation provides a simplified method for capturing free variables within expression trees and providing read/write access to such variables. Show less

The present invention relates to an XML application framework (XAF). XAF applications are data driven such that all operations with the computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how the data is displayed and what type of data is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an… Show more

The present invention relates to an XML application framework (XAF). XAF applications are data driven such that all operations with the computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how the data is displayed and what type of data is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an action module. The action module generates a standard format action from the UI event and sends it to the data connector. The data connector translates the standard format action into a data-specific action that changes data in a data store. A data connector then sends a standard format data representation corresponding to the changed data back to the UI connector to provide the changed data to the UI. Show less

An observation system includes mechanisms for efficiently tracking the state of source components, which include functions, arguments, or values, etc. In one implementation, an observing component requests that a source component processes a request. The observation system then identifies all possible components in a dependency chain for the request, and all such components that are configured for change notifications. A dependency registry stores a representation of each identified component… Show more

An observation system includes mechanisms for efficiently tracking the state of source components, which include functions, arguments, or values, etc. In one implementation, an observing component requests that a source component processes a request. The observation system then identifies all possible components in a dependency chain for the request, and all such components that are configured for change notifications. A dependency registry stores a representation of each identified component that is configured for change notifications. Any time any component configured for change notifications changes, including indirectly related components, the observing component can be immediately notified of the change, without having to reprocess the entire set of component dependencies. Show less

An extensible markup language (XML) application framework (XAF) may be provided. XAF applications are data driven such that all operations with a computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how data is displayed and what data type is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an… Show more

An extensible markup language (XML) application framework (XAF) may be provided. XAF applications are data driven such that all operations with a computer system are data focused. In addition, the components used in the XAF application are instantiated and connected according to how data is displayed and what data type is used. Applications within XAF comprise a user interface (UI) connector, an action module, and a data connector. UI connectors receive UI events and connect the UI event to an action module. The action module generates a standard format action from the UI event and sends it to the data connector. The data connector translates the standard format action into a data-specific action that changes data in a data store. A data connector then sends a standard format data representation corresponding to the changed data back to the UI connector to provide the changed data to the UI. Show less

A signaling system of the present invention provides a synchronized approach to delivering, reporting, and/or otherwise processing status changes in a software dependency chain. In a first phase, the signaling system identifies all dependencies between software components, and further sets a binary indicator of each node in a first representation. After identifying any changes in a source node, the system (e.g., a value is updated), the system updates each binary indicator to a second setting… Show more

A signaling system of the present invention provides a synchronized approach to delivering, reporting, and/or otherwise processing status changes in a software dependency chain. In a first phase, the signaling system identifies all dependencies between software components, and further sets a binary indicator of each node in a first representation. After identifying any changes in a source node, the system (e.g., a value is updated), the system updates each binary indicator to a second setting. In a second phase, the system initiates all listeners in the dependency chain in an essentially progressive order from source node, to intermediate node, and end-node, etc. Once all listeners have had a chance to perform one or more processes based on the updated value, the system can discard the dependency graph, allowing a new dependency graph to be built for subsequent value changes. Show less

The present invention extends to methods, systems, and computer program products for accessing and manipulating data in a data flow graph. A data flow graph includes one more transforms for transforming data from one or more data stores into different formats accessible to clients. Transforms can be configured to join and split data from the same or different data stores. A metadata tree logically represents the data flow graph including locations that provide output from transforms of the data… Show more

The present invention extends to methods, systems, and computer program products for accessing and manipulating data in a data flow graph. A data flow graph includes one more transforms for transforming data from one or more data stores into different formats accessible to clients. Transforms can be configured to join and split data from the same or different data stores. A metadata tree logically represents the data flow graph including locations that provide output from transforms of the data flow graph. The locations can be referenced by clients to access transformed outputs. Clients can register dependencies on data at various locations and can request evaluation of the data in response to data changes at a corresponding data store. Clients can also request data changes be propagated back through the data flow graph to one or more data stores and implemented at the one or more data stores. Show less

Strategies are described for organizing the runtime components of an application into an entity domain framework. The entity domain framework includes one or more entity domains arranged in a hierarchical fashion. Each entity domain further groups one or more components together in a hierarchical fashion. Each entity domain can include one or more services that provide a policy to the components within the entity domain. Composite functionality couples the framework together, and further… Show more

Strategies are described for organizing the runtime components of an application into an entity domain framework. The entity domain framework includes one or more entity domains arranged in a hierarchical fashion. Each entity domain further groups one or more components together in a hierarchical fashion. Each entity domain can include one or more services that provide a policy to the components within the entity domain. Composite functionality couples the framework together, and further provides a bus-like mechanism whereby an entity can forward service requests up through the hierarchy until a domain is found that satisfies the requests. Exemplary services provided by the entity domain framework include lifetime management services, error handling services, and so forth. The hierarchical structure provides an efficient way of exposing functionality to groups of components that will share this functionality in a common context, without requiring costly and complex atomistic coupling of services to components or duplication of service instances. Show less

Methods, systems and computer products are provided for partitioning software application components into separate domains called concurrency domains. Computationally expensive, slow or long-running methods may be deployed into such domains, thus keeping the associated application more responsive to the end user. According to one aspect of the invention, a given concurrency domain is a partition of runtime objects for providing synchronization and thread isolation within the partition and for… Show more

Methods, systems and computer products are provided for partitioning software application components into separate domains called concurrency domains. Computationally expensive, slow or long-running methods may be deployed into such domains, thus keeping the associated application more responsive to the end user. According to one aspect of the invention, a given concurrency domain is a partition of runtime objects for providing synchronization and thread isolation within the partition and for providing concurrency with other such partitions in a data-driven dynamically composed and reconfigured application. Show less

Described is a system and method that enable the incorporation of one namespace into another namespace while avoiding name collisions by defining namespaces with a common name and a unique identifier. In accordance with the invention, a namespace may incorporate another namespace by unique identifier and assign an alias to that incorporated namespace. The use of the alias provides a developer with the flexibility to reference the imported namespace and its declarations by common… Show more

Described is a system and method that enable the incorporation of one namespace into another namespace while avoiding name collisions by defining namespaces with a common name and a unique identifier. In accordance with the invention, a namespace may incorporate another namespace by unique identifier and assign an alias to that incorporated namespace. The use of the alias provides a developer with the flexibility to reference the imported namespace and its declarations by common, understandable, or human-meaningful names. In addition, name collisions between the imported namespace and local declarations are avoided by the uniqueness provided by the unique identifier. Furthermore, by way of re-exports, multiple parallel namespace hierarchies can be formed over the same definitions to reflect multiple parallel taxonomies. Show less