# Com / Fujitsu / Futurity / Bp / Custom ## Overview This module (`com.fujitsu.futurity.bp.custom`) represents a customization layer within the broader Fujitsu Futurity billing and pricing ecosystem. The `bp` (billing/pricing) namespace suggests this is part of the financial or rate-engineering domain, while `custom` indicates it holds bespoke logic that deviates from or extends the standard Futurity behavior. Based on the package naming convention and the presence of a `constant` sub-module, this area of the codebase appears to define configurable constants, configuration keys, or domain-specific literals used across the billing and pricing customization logic. These constants likely serve as the single source of truth for values that multiple customization components reference — such as flag names, configuration paths, rate-plan identifiers, or feature-toggle markers. As of the current index, **no source files have been collected** for this module. This may indicate the code lives in a separate compilation unit, is loaded dynamically at runtime, or has not yet been scanned by the documentation tooling. The documentation below reflects the structural metadata available rather than code-level detail. ## Sub-module Guide ### constant The `constant` sub-module (path: `.codewiki/com/fujitsu/futurity/bp/custom/constant`) is the only known child module. It appears to consolidate the constant definitions used across this customization layer. In billing and pricing systems, such a module typically holds: - **Configuration property keys** — strings or identifiers that the code uses to look up settings from configuration files or external property stores. - **Domain-specific literals** — fixed values like rate-plan codes, billing-cycle identifiers, or feature flags. - **Error or status codes** — constants used to signal specific billing or pricing conditions. No detailed source has been indexed to confirm the exact constants defined here, but its placement as a top-level child module of `custom` signals that these constants are foundational — consumed by other customization logic throughout the package. ### Relationships The relationship between `custom` and `constant` is hierarchical: `constant` is a leaf module providing foundational values, while `custom` itself is the parent namespace that would contain the classes consuming these constants. Because no other child modules exist and no source files are indexed, the full interaction picture is not yet available. ```mermaid flowchart TD A["custom (parent namespace)"] --> B["constant (constants/config keys)"] style A fill:#e1f5fe style B fill:#fff3e0 ``` ## Key Patterns and Architecture With no indexed source files, specific architectural patterns cannot be confirmed. However, the package structure suggests the following likely patterns: - **Constants-as-configuration**: The presence of a dedicated `constant` module strongly implies a pattern where configurable values are centralized in a single module and referenced via static imports or accessor methods elsewhere in the codebase. This is a common pattern in billing systems to avoid magic strings scattered across multiple files. - **Customization via extension**: The `custom` qualifier on the package name suggests this layer is designed to be activated conditionally — perhaps through a feature flag or a deployment-specific configuration profile. Standard Futurity behavior would live in parent packages (`com.fujitsu.futurity.bp`), while custom logic overrides or augments it here. - **Layered abstraction**: The three-level nesting (`futurity` → `bp` → `custom`) suggests a deliberate architectural boundary. Each level represents a refinement of scope: the product family, the billing/pricing domain, and the site-specific customizations. ## Dependencies and Integration ### Package dependencies No package dependencies were resolved for this module. This is likely due to the absence of indexed source files rather than an actual lack of dependencies. Based on the package naming, one would expect this module to depend on: - `com.fujitsu.futurity.bp` — the parent billing/pricing package, for base classes, interfaces, and shared utilities. - Possibly `com.fujitsu.futurity` — the top-level product package. ### Cross-module relationships No cross-module relationships were detected in the index. The module does not appear to export public APIs consumed by other modules, nor does it appear to be consumed by sibling modules. This may indicate it is an internal customization hook with limited cross-module visibility. ## Notes for Developers - **Missing source files**: No `.java` (or other language) source files have been indexed for this module. If you expect code to exist here, it may be in a different module, loaded dynamically, or not yet scanned. Check the build configuration and source roots to ensure this package path is included in indexing. - **Constant definitions**: If you are looking for specific configuration keys, rate-plan codes, or feature flags, the `constant` sub-module is the place to start — though its content has not been indexed yet. - **Customization activation**: The `custom` qualifier in the package name suggests this code may only be active under specific deployment configurations. Review the feature-toggle or configuration activation logic in the parent `com.fujitsu.futurity.bp` package to understand when this customization layer is engaged. - **No documented consumers**: There are no known consumers of this module's output in the current index. If this module is meant to contribute behavior to the broader billing system, those integration points have not been captured.