@SuppressWarnings("unused")
    @PipelineProperty(
            description = "When the current output object exceeds this size it will be closed and a new one created.",
            displayPriority = 4)
    public void setRollSize(final String size) {
        super.setRollSize(size);
    }
Joins text instances into a single text instance.
stroom-aws/stroom-aws-s3-impl/src/main/java/stroom/aws/s3/impl/S3Appender.java