Custom Snap
I can’t able to get the values from previous snap.I used mapper to set a value and retrieve using expression from previous snap but getting error alike cannot set null value.
@General(title = “Exam...
Forum Discussion
Hi,
Cant able to acces the URL’s above.
Many thanks for taking time and replying for the post.
Regards,
Ashlam
You’ll need to evaluate the ExpressionProperty against the input document, not null. This cannot be done in the configure() method, use process() instead:
ExpressionProperty valueCategoryExp;
String valueCategory;
@Override
public void configure(PropertyValues propertyValues) throws ConfigurationException {
valueCategoryExp = propertyValues.getAsExpression(CACHE_DATA_ID);
}
@Override
protected void process(Document document, String s) {
valueCategory = valueCategoryExp.eval(document);
}
