protected internal virtual void UpdateVariableInstance(IVariableInstanceEntity variableInstance, object value, IExecutionEntity sourceActivityExecution)
{
// Always check if the type should be altered. It's possible that the
// previous type is lower in the type
// checking chain (e.g. serializable) and will return true on
// isAbleToStore(), even though another type
// higher in the chain is eligible for storage.
IVariableTypes variableTypes = Context.ProcessEngineConfiguration.VariableTypes;
IVariableType newType = variableTypes.FindVariableType(value);
if (newType != null && !newType.Equals(variableInstance.Type))
{
variableInstance.Value = null;
variableInstance.Type = newType;
variableInstance.ForceUpdate();
variableInstance.Value = value;
}
else
{
variableInstance.Value = value;
}
Context.CommandContext.HistoryManager.RecordHistoricDetailVariableCreate(variableInstance, sourceActivityExecution, ActivityIdUsedForDetails);
Context.CommandContext.HistoryManager.RecordVariableUpdate(variableInstance);
}
protected internal virtual IVariableInstanceEntity CreateVariableInstance(string variableName, object value, IExecutionEntity sourceActivityExecution)
{
IVariableTypes variableTypes = Context.ProcessEngineConfiguration.VariableTypes;
IVariableType type = variableTypes.FindVariableType(value);
IVariableInstanceEntity variableInstance = Context.CommandContext.VariableInstanceEntityManager.Create(variableName, type, value);
InitializeVariableInstanceBackPointer(variableInstance);
Context.CommandContext.VariableInstanceEntityManager.Insert(variableInstance);
if (variableInstances != null)
{
variableInstances[variableName] = variableInstance;
}
// Record historic variable
Context.CommandContext.HistoryManager.RecordVariableCreate(variableInstance);
// Record historic detail
Context.CommandContext.HistoryManager.RecordHistoricDetailVariableCreate(variableInstance, sourceActivityExecution, ActivityIdUsedForDetails);
return(variableInstance);
}
public virtual void Initialize(IVariableTypes types)
{
if (variableInstanceEntity == null)
{
IVariableType type = types.FindVariableType(value);
if (type is ByteArrayType)
{
throw new ActivitiIllegalArgumentException("Variables of type ByteArray cannot be used to query");
}
else if (type is IEntityVariableType && @operator != QueryOperator.EQUALS)
{
throw new ActivitiIllegalArgumentException("JPA entity variables can only be used in 'variableValueEquals'");
}
else if (type is IEntityListVariableType)
{
throw new ActivitiIllegalArgumentException("Variables containing a list of JPA entities cannot be used to query");
}
else
{
// Type implementation determines which fields are set on the entity
variableInstanceEntity = Context.CommandContext.VariableInstanceEntityManager.Create(name, type, value);
}
}
}