Structured Data Object Processor Method Handle for Dynamic Instantiation
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Solution Overview
Problem
Existing technologies face challenges in efficiently instantiating a target class from structured data using a direct method handle to a constructor, particularly in converting structured data into an object within heap memory, which affects performance and flexibility in dynamic programming environments.
Innovation Solution
The approach involves using a method handle graph that includes a direct method handle to a constructor, along with Argument Discovery method handles, to match structured data fields with constructor parameters, generating a Structured Data Object Processor method handle (SDOP_mh) as a runtime-computed constant, and using it to create a target object by invoking the constructor with appropriate arguments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a direct method handle to a constructor is used to instantiate a target class from structured data, then the instantiation efficiency is improved, but the complexity of matching structured data fields with constructor parameters increases
Solution Approach 1:
The patent introduces method handles as intermediary objects that bridge structured data and constructor parameters. The method handle graph includes Argument Discovery method handles that automatically discover and match data fields with constructor parameters, eliminating the need for manual mapping while maintaining efficient direct invocation. This intermediary layer resolves the contradiction by automating the matching process.
Solution Approach 2:
The patent performs preliminary actions by pre-compiling method handle graphs that encode the mapping between structured data fields and constructor parameters. At runtime, the system directly invokes pre-computed method handles rather than performing field-to-parameter matching during instantiation. This preliminary preparation resolves the contradiction by shifting matching complexity from runtime to compile time.
2Ease of manufacture
If structured data is converted to an object in heap memory using traditional methods, then the process is simple to implement, but the performance is degraded
Solution Approach 1:
The patent replaces traditional mechanical object instantiation mechanisms with a method handle-based invocation system. Instead of using standard reflection or manual constructor calls, the system uses pre-compiled method handles that directly invoke constructors with automatically matched parameters. This substitution maintains ease of implementation through high-level abstractions while achieving native-level performance through direct method invocation.
3Adaptability or versatility
If method handles are used to match structured data fields with constructor parameters, then the flexibility in dynamic programming environments is improved, but the device complexity increases
Solution Approach 1:
The patent creates a universal method handle graph framework that can handle various structured data formats (JSON, XML, etc.) and different target classes through a single unified mechanism. The Argument Discovery method handles serve multiple purposes: field discovery, type validation, and parameter matching. This universality resolves the contradiction by providing flexible adaptability through a standardized multi-functional interface rather than specialized code for each scenario.
Data Source
AI summary
A data-instantiator method handle is configured to instantiate a target class based on a structured data object. One type of data-instantiator method handles is a Structured Data Object Processor method handle (SDOP_mh). The runtime environment invokes a SDOP_mh to create a target object based on a name-index map and an index-value map. The SDOP_mh is adapted, directly or indirectly, from a direct method handle that references a constructor of the target class. In an embodiment, the constructor referenced by the direct method handle is a canonical constructor. In an embodiment, the SDOP_mh is a runtime-computed constant in a runtime constant pool.