I have an error message when I try to create a Boolean variable with the String Manipulation (Variable) node.
Its kind of a workaround for not using the java Edit Variable node
But since it works to create Double variable for instance, I though it would for Boolean too
Actually the node does not throw an error when the config window is oked, just when the node is executed.
ERROR String Manipulation (Variable) 0:288 Configure failed (RuntimeException): Invalid variable class: class org.knime.core.data.def.BooleanCell
EDIT: Actually with the java variable nodes I could not generate a Boolean variable neither. So I just use a Boolean configuration input trapped in a metanode to not show up in the configuration of the parent component.