ExpressionBiPredicate

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 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