# Namespace OptimaJet.Workflow.Core.CodeActions

## Classes

-   [CodeActionsCompiller](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/CodeActionsCompiller/)
    
    Compiles scheme and global [CodeActionDefinition](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/CodeActionDefinition/) objects into [CodeActionsInvoker](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/CodeActionsInvoker/) instances.
    
-   [CodeActionsInvoker](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/CodeActionsInvoker/)
    
    Stores compiled actions, conditions, and rules and invokes them by their logical names.
    
-   [CodeActionUtils](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/CodeActionUtils/)
    
    Provides lookup helpers for scheme-local and runtime-global compiled code actions and creates identifiers used by generated code.
    
-   [ExpressionManager](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionManager/)
    
    Compiles, caches, and evaluates workflow expressions for process schemes.
    
-   [ExpressionsCompiler](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionsCompiler/)
    
    Prepares and compiles transition expression conditions and subprocess-name values into asynchronous delegates evaluated against [ProcessInstance](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ProcessInstance/) objects.
    
-   [ExpressionsCompilerOptions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionsCompilerOptions/)
    
    Configures batch-compilation concurrency and optional garbage collection after compiled delegates are created by [ExpressionsCompiler](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionsCompiler/).
    
-   [ExpressionsInvoker](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionsInvoker/)
    
    Evaluates the combined [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions registered for process transitions.
    
-   [ExpressionsUtils](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/ExpressionsUtils/)
    
    Resolves the compiled expression invokers and on-demand expression cache used by a process scheme.
    
-   [FunctionInvoker<TReturn>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/FunctionInvoker-TReturn/)
    
    Stores asynchronous workflow functions by transition name and invokes them for process instances.
    
-   [RegexPattern](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/RegexPattern/)
    
    Defines regular-expression patterns for locating and parsing process parameter placeholders in workflow expressions and substitutable text.
    
-   [RegexPattern.Groups](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/RegexPattern.Groups/)
    
    Contains named groups and fragments used to compose placeholder-matching regular-expression patterns.
    
-   [SubprocessNameGetterInvoker](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/SubprocessNameGetterInvoker/)
    
    Evaluates configured [TransitionDefinition.SubprocessName](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) values for process transitions.
    
-   [SubstitutionsProcessor](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/SubstitutionsProcessor/)
    
    Expands process parameter placeholders embedded in action, condition, and rule parameters, annotation values, and other text evaluated for a process instance.
    

## Interfaces

-   [IExternalCompiler](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/IExternalCompiler/)
    
    Defines a compiler that replaces the built-in Roslyn compiler for generated code actions and returns them in a form that the workflow runtime can invoke.
    

## Enums

-   [FunctionInvoker<TReturn>.InvokerNotFoundReactionType](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/FunctionInvoker-TReturn.InvokerNotFoundReactionType/)
    
    Defines the behavior when a requested transition function is missing.
    

## Structs

-   [CodeForCompillation](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.CodeActions/CodeForCompillation/)
    
    Contains a generated C# compilation unit and the source definition from which it was created.