Portable GUI IoC Client Containers Using Wiring Graphs
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Solution Overview
Problem
GUI frameworks lack sophisticated Inversion of Control (IoC) capabilities, requiring code changes with framework upgrades, and existing IoC solutions are not portable across different GUI technologies.
Innovation Solution
An expressive and portable IoC Container (IoCC) that determines dependencies at runtime, creating and injecting objects, methods, and strings using a wiring graph, independent of specific GUI technologies, and manages object lifecycle through depth-first traversal and deletion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GUI frameworks use proprietary IoC syntax and semantics, then the framework can provide sophisticated IoC capabilities, but the code must be changed when the framework upgrades
Solution Approach 1:
The patent introduces a wiring graph as an intermediary data structure that mediates between the application code and the GUI framework's IoC container. The wiring graph translates framework-specific IoC syntax into a universal internal representation, allowing the same application code to work with different GUI frameworks without modification. This intermediary layer resolves the contradiction by enabling framework portability while maintaining sophisticated IoC capabilities.
Solution Approach 2:
The patent changes the parameter representation from framework-specific syntax to a standardized internal representation using the wiring graph. By transforming the IoC configuration into a framework-agnostic data structure, the system can adapt to different GUI frameworks by changing only the wiring graph generation logic, not the core IoC functionality. This parameter transformation enables both reliability of IoC capability and adaptability across frameworks.
2Adaptability or versatility
If the IoC container determines dependencies at runtime, then the container is more flexible and portable, but the object creation process becomes more complex
Solution Approach 1:
The patent performs preliminary action by generating the wiring graph during the application startup phase, before runtime object creation. The wiring graph is constructed by analyzing the application's dependency declarations and creating a pre-computed map of relationships. This preliminary generation of the wiring graph simplifies runtime operations, as the system only needs to traverse the pre-built graph rather than dynamically analyzing dependencies at runtime, thus reducing the complexity of the runtime process while maintaining flexibility.
Solution Approach 2:
The patent segments the dependency management process into two distinct phases: (1) wiring graph generation phase, where dependencies are analyzed and the graph is constructed, and (2) object creation phase, where the graph is traversed to instantiate objects. This segmentation separates the complex analysis work from the runtime execution, allowing the system to maintain flexibility in dependency determination while managing complexity through phased processing.
3Adaptability or versatility
If the IoC container creates and manages multiple object instances, then the container provides comprehensive dependency injection, but memory usage increases
Solution Approach 1:
The patent implements feedback mechanisms in the form of post-construction and pre-destroy methods that are invoked during the object creation and destruction lifecycle. These feedback points allow the IoC container to monitor and manage object instances, enabling sophisticated dependency injection while providing control over memory usage. The feedback mechanisms enable the system to track which objects need to be created and when they should be destroyed, balancing comprehensive dependency injection with memory efficiency.
Solution Approach 2:
The patent applies discarding and recovering by systematically destroying object instances that are no longer needed, as determined by the wiring graph traversal. When a GUI component is destroyed, the IoC container automatically destroys all dependent objects listed in the wiring graph, preventing memory leaks. This disciplined approach to object destruction manages memory usage while maintaining the ability to create multiple dependency types, as the system only retains objects that are currently needed.
Data Source
AI summary
A Graphical User Interface (GUI) Inversion of Control Container (IoCC) is created by identifying a set of containing objects used to implement an application client, each containing object having at least one respective dependency, determining a respective generator for each respective dependency, and generating a wiring graph in which the nodes of the wiring graph are the containing objects and the dependencies, and the edges of the graph link each respective containing object to a respective resolved dependency. During runtime, the wiring graph is used to create instances of objects to be wired to software objects within the IoCC. The wiring graph is also used to recursively destroy objects and their injected dependencies to discard unused instances of objects when the GUI page for which the objects were created is no longer displayed.