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InvalidReferenceException when calling entrySatisfiesCondition



When passing an expression (as in the below example) to a function call, the selectorExpression and propertyCollection values are set incorrectly and InvalidReferenceException occurs. The selectorExpression is set to '?' instead of the Index value.


For example,

Consider the below expression.

@(Pega-RULES:ExpressionEvaluators).entrySatisfiesCondition(TestPage.pxResults(Param.Index).pxResults().pyLabel, "=", "<current-value>", "ANY")

Error Messages The reference TestPage.pxResults(?).pxResults().pyLabel is not valid. Reason: unexpected character '?' at position 19, expected subscript

Steps to Reproduce

Call an expression with a data structure such as the following:


Root Cause

The code cannot handle the selectorExpression and propertyCollection values when passed together as in the below expression. A custom function can be used to breakup the expression such that it is passed correctly.



Perform the following local-change: 1. Create a function in a custom library. Select a name for the use case.
ClipboardPropertyCollection F11(ClipboardPage context, String expression, PublicAPI tools) {
return ((PegaAPI) tools).propertyReferenceFilter(expression, context, PropertyInfo.MODE_STRING);

2. Use the new function when referencing entrySatisfiesCondition.

The actual Property-Set used for testing.

Param.Test = @(Pega-RULES:ExpressionEvaluators).entrySatisfiesCondition(TestPage.pxResults(Param.Index).pxResults().pyLabel, "=", "<current-value>", "ANY")

The Property-Set with the new function.

Param.Test = @(Pega-RULES:ExpressionEvaluators).entrySatisfiesCondition((@CustomLibrary.F11(TestPage.pxResults(Param.Index), ".pxResults().pyLabel", tools)), "=", "<current-value>", "ANY")

An enhancement request is submitted to review the functionality in a future release.

Published April 15, 2018 - Updated October 8, 2020

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