InterSystems IRIS Data Platform 2020.4 > Class Reference > ENSLIB namespace > 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

Property Inventory (Including Private)

Method Inventory (Including Private)

Properties (Including Private)

property Properties as Ens.BPL.PropertyList;
This holds the context Properties list
Property methods: PropertiesGet(), PropertiesGetSwizzled(), PropertiesIsValid(), PropertiesNewObject(), PropertiesSet()

Methods (Including Private)

method %OnNew(initvalue As %RawString) as %Status [ Language = objectscript ]
Inherited description: 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 [ Language = objectscript ]
method GenerateXML(pStream As %BinaryStream) as %Status [ Language = objectscript ]
method Validate(ByRef pStatus As %Status, pContext As Ens.BPL.ValidationContext) as %Status [ Language = objectscript ]
Perform a sanity check on the nodes in the parse tree

Inherited Members

Inherited Properties (Including Private)

Inherited Methods (Including Private)