This document discusses context objects and variables in Mule that allow access to message data mapped as objects and stored in maps. Examples are provided for accessing payload, session variables, and structured data like JSON and XML using MEL expressions like #[message.payload] and #[message.payload.name]. The next session will cover more examples of relational data access in Mule.

1. Abhishek Jain

2.  Context Objects
 Context Variables
 Access Map Data
 Some Examples
 Relational Data Access
 Topic for next session
 Reference

3. Message
• Mule Message which the
processor is processing

4. Allows access of various variables. These gets stored in form of
maps

5. -Some Examples:
#[message.payload]
#[sessionVars[‘flowName’]]
#[message.payload.name]
#[message.inboundProperties[‘host’]]

6. -Raw Data
-String
-Input Stream
-Byte Array
-Structured Data
-Map
-Structured Java Object
-XML
-JSON

7. CustID FirstName LastName
12345 Abhi Jain
23464 Montu Jain
#[message.payload[0][‘FirstName’]]
Abhi
#[message.payload.size]
2

8. More Insights with Examples

9.  www.mulesoft.com
 Mule in Action