Transaction Attributes

Transaction Attributes

The eiConsole’s Attribute Population Processor Populates a Transaction Attribute with a Value

The purpose of the eiConsole’s Transaction Attribute Population Processor is to populate a Transaction Attribute based on an expression. The Transaction Attribute Population Processor creates, alters or otherwise populates a Transaction Attribute with a specified name and using a supplied value or value expression. Only a single Transaction Attribute can be populated with each instance of this Processor, so multiple instances or chains are expected / normal for complicated interfaces. As with all the components of the eiConsole, the user is presented with a graphical interface with easy to configure panels.

To use the Processor, you follow these steps:

Identification – The Processor selected in the Add Processor dialog below:

Transaction Attribute Population Processor Add Processor Panel

Configuration – The Processor’s configuration panel below:

Transaction Attribute Population Processor Configuration Panel

Basic Tab

Transaction Attribute Name:

The name of the Transaction Attribute which will have its contents populated or replaced with the results of an evaluated expression.

Evaluation Expression:

The expression to be evaluated to obtain the Transaction Attribute value. This can be a literal, OGNL or an environmental variable.

Usage

The Transaction Attribute Population Processor is fairly simple to use in practice, having a small number of configurable items. A Transaction Attribute can be replaced, created or otherwise populated simply by specifying a name in the “Transaction Attribute Name” field and providing some sort of expression, be it literal, OGNL or an environmental property.

The configuration below will populate an attribute named “TEST_ATTRIBUTE” with the results of a literal expression:

An example of a literal value expression

Transaction Attribute Population Processor lLiteral Value Expression Panel

In contrast, the configuration below will populate the same attribute with an OGNL expression which produces the same result:

An example of an OGNL expression

Transaction Attribute Population Processor OGNL Expression Panel

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