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Home / Class Reference / ENSLIB namespace / Ens.BPL.Context
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Ens.BPL.Context


class Ens.BPL.Context extends
Ens.BPL.Node

is an object that is available to a BPL business process anywhere inside the element. context is a general-purpose container for any data that needs to be persisted during the life cycle of the business process. You define each data item as a property on the context object when creating the BPL business process as follows in the example

Inventory


Parameters Properties Methods Queries Indices ForeignKeys Triggers
1 4


Summary


Properties
Parent Properties

Methods
%AddToSaveSet %ClassIsLatestVersion %ClassName %ConstructClone
%DispatchClassMethod %DispatchGetModified %DispatchGetProperty %DispatchMethod
%DispatchSetModified %DispatchSetMultidimProperty %DispatchSetProperty %Extends
%GetParameter %IsA %IsModified %New
%NormalizeObject %ObjectModified %OnNew %OriginalNamespace
%PackageName %RemoveFromSaveSet %SerializeObject %SetModified
%ValidateObject DisplayName GenerateCode GenerateXML
NormalizeAttribute Validate


Properties


• property Properties as Ens.BPL.PropertyList;
This holds the context Properties list

Methods


• method %OnNew(initvalue As %RawString) as %Status
This callback method is invoked by the %New method to provide notification that a new instance of an object is being created.

If this method returns an error then the object will not be created.

It is passed the arguments provided in the %New call. When customizing this method, override the arguments with whatever variables and types you expect to receive from %New(). For example, if you're going to call %New, passing 2 arguments, %OnNew's signature could be:

Method %OnNew(dob as %Date = "", name as %Name = "") as %Status If instead of returning a %Status code this returns an oref and this oref is a subclass of the current class then this oref will be the one returned to the caller of %New method.

• method GenerateCode(pCompiler As Ens.BPL.Compiler) as %Status
• method GenerateXML(pStream As %BinaryStream) as %Status
• method Validate(ByRef pStatus As %Status, pContext As Ens.BPL.ValidationContext) as %Status
Perform a sanity check on the nodes in the parse tree