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ModuleRegistry

dcmspec.module_registry.ModuleRegistry

Bases: UserDict

Registry for sharing module models by table_id across IODs.

This class manages a mapping from table_id (str) to SpecModel. The table_id is typically a string like "table_C.7-1", as found in the HTML anchor tag: It is used to avoid duplicating module models in memory when building many IODs.

Access patterns
  • registry[table_id] -> SpecModel
  • registry.get(table_id) -> SpecModel or None
  • for table_id, model in registry.items(): ...
Example
registry = ModuleRegistry()
# When building IODs, pass registry to IODSpecBuilder(module_registry=registry)

# Setting a module model:
registry["table_C.7-1"] = module_model  # module_model is a SpecModel

# Getting a module model (returns SpecModel):
model = registry["table_C.7-1"]

# Safe get (returns SpecModel or None):
model = registry.get("table_C.7-1")

# Checking if a module is present:
if "table_C.7-1" in registry:
    ...

# Iterating over all table_ids and models:
for table_id, model in registry.items():
    # table_id: str, model: SpecModel
    ...

All values in the registry are instances of SpecModel.

Source code in src/dcmspec/module_registry.py
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class ModuleRegistry(UserDict):
    """Registry for sharing module models by table_id across IODs.

    This class manages a mapping from table_id (str) to SpecModel.
    The table_id is typically a string like "table_C.7-1", as found in the HTML anchor tag:
        <a id="table_C.7-1" shape="rect"></a>
    It is used to avoid duplicating module models in memory when building many IODs.

    Access patterns:
        - registry[table_id] -> SpecModel
        - registry.get(table_id) -> SpecModel or None
        - for table_id, model in registry.items(): ...

    Example:
        ```python
        registry = ModuleRegistry()
        # When building IODs, pass registry to IODSpecBuilder(module_registry=registry)

        # Setting a module model:
        registry["table_C.7-1"] = module_model  # module_model is a SpecModel

        # Getting a module model (returns SpecModel):
        model = registry["table_C.7-1"]

        # Safe get (returns SpecModel or None):
        model = registry.get("table_C.7-1")

        # Checking if a module is present:
        if "table_C.7-1" in registry:
            ...

        # Iterating over all table_ids and models:
        for table_id, model in registry.items():
            # table_id: str, model: SpecModel
            ...
        ```

    All values in the registry are instances of SpecModel.

    """