@PipelineProperty(description = "The S3 bucket config to use.", displayPriority = 1)
    @PipelinePropertyDocRef(types = S3ConfigDoc.TYPE)
    public void setS3Config(final DocRef s3ConfigRef) {
        this.s3ConfigRef = s3ConfigRef;
    }
Joins text instances into a single text instance.
stroom-aws/stroom-aws-s3-impl/src/main/java/stroom/aws/s3/impl/S3Appender.java