# Namespace OptimaJet.Workflow.Core.Entities

## Classes

-   [ApprovalHistoryEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ApprovalHistoryEntity/)
    
    Represents a persistence entity for a pending or completed approval history entry.
    
-   [GlobalParameterEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/GlobalParameterEntity/)
    
    Represents the persisted data for a global parameter.
    
-   [InboxEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/InboxEntity/)
    
    Represents the persisted form of an [InboxItem](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/InboxItem/).
    
-   [ProcessAssignmentEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessAssignmentEntity/)
    
    Represents an assignment record persisted for the obsolete Assignment Plugin.
    
-   [ProcessInstanceEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessInstanceEntity/)
    
    Represents a persistence entity used to store system data for a [ProcessInstance](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ProcessInstance/).
    
-   [ProcessInstancePersistenceEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessInstancePersistenceEntity/)
    
    Represents a persistence record containing the serialized value of a process instance parameter.
    
-   [ProcessInstanceStatusEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessInstanceStatusEntity/)
    
    Represents the persistence entity that stores [ProcessStatus](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/ProcessStatus/) information and status-update metadata for a process instance.
    
-   [ProcessInstanceTreeItem](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessInstanceTreeItem/)
    
    Represents persisted process instance data used to reconstruct a [ProcessInstancesTree](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Subprocess/ProcessInstancesTree/) hierarchy.
    
-   [ProcessSchemeEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessSchemeEntity/)
    
    Represents a persistence entity that stores a serialized process scheme and the metadata used to create a [ProcessDefinition](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ProcessDefinition/).
    
-   [ProcessTimerEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessTimerEntity/)
    
    Represents a persistence entity that stores a scheduled [TimerDefinition](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TimerDefinition/) for an [ProcessInstance](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ProcessInstance/).
    
-   [ProcessTransitionHistoryEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/ProcessTransitionHistoryEntity/)
    
    Represents a persistence entity for a transition or process initialization history entry exposed as a [ProcessHistoryItem](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/ProcessHistoryItem/).
    
-   [RuntimeEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/RuntimeEntity/)
    
    Represents the persistence entity that stores status, liveness, restoration, and distributed timer scheduling data for a workflow runtime.
    
-   [SchemeEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/SchemeEntity/)
    
    Represents a persistence entity that stores a workflow scheme definition and its inlining, tag, and tenant metadata.
    
-   [SyncEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/SyncEntity/)
    
    Represents persisted synchronization state used to coordinate timer scheduling among [WorkflowRuntime](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/WorkflowRuntime/) instances.
    
-   [WorkflowFormEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/WorkflowFormEntity/)
    
    Represents the persisted data for a [WorkflowForm](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/WorkflowForm/).
    

## Interfaces

-   [IEntity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Entities/IEntity/)
    
    Defines keyed access to property values exposed by a Workflow Engine persistence entity.