The Shibboleth IdP V4 software has reached its End of Life and is no longer supported. This documentation is available for historical purposes only. See the IDP5 wiki space for current documentation on the supported version.

ExpressionBiPredicate

Owned by Scott Cantor
Last updated: Oct 20, 2021
1 min read

The predicate bean named shibboleth.BiConditions.Expression executes a Spring Expression Language (SpEL) expression against arbitrary inputs to produce a true/false result.

An Expression Predicate is instantiated by simply supplying a string argument that contains a SpEL expression.

Example

<bean id="MyCondition" parent="shibboleth.BiConditions.Expression" c:expression="#input1 + #input2 < 10" />

Reference

The following additional bean properties are available:

Name

Type

Default

Description

Name

Type

Default

Description

customObject

Bean/Reference



An object to make available to the script via a variable named custom

inputTypes

Pair<Class<?>,Class<?>>



Allows type checking of inputs

returnOnError

boolean

false

What to return if the expression fails

The expression context will have the following variables populated:

  • input1 - the first input

  • input2 - the second input

  • custom - the object set via the customObject property, if any

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