Method addAltCall

src/main/java/com/rtg/vcf/VcfRecord.java:223–233

@param altCall the next alternate call @return this, for call chaining

(String altCall)

   * @return this, for call chaining
   */
  public VcfRecord addAltCall(String altCall) {
    if (altCall.length() == 0) {
      throw new VcfFormatException("An empty ALT allele is not permitted");
    }
    if (MISSING.equals(altCall)) {
      throw new VcfFormatException("Attempt to add missing value '.' as explicit ALT allele");
    } else {
      mAltCalls.add(altCall);
    }
    return this;
  }

  /**
   * @return alternate calls (this should be treated as read-only).