public static boolean shouldImport(final ProcessorFilter processorFilter) {
        if (processorFilter == null || processorFilter.getQueryData() == null ||
                processorFilter.getQueryData().getExpression() == null) {
            return false;
        }

        ExpressionOperator expression = processorFilter.getQueryData().getExpression();

        return containsIdField(expression) == false;
    }
Collection of utility methods relating to processor filters
stroom-processor/stroom-processor-api/src/main/java/stroom/processor/api/ProcessorFilterUtil.java