ArrayList<RowKeyComponent> components = new ArrayList<RowKeyComponent>();
components.add(RowKeyComponent.newBuilder()
.setName("NAME").setType(ComponentType.STRING).build());
// build the row key format
RowKeyFormat2 format = RowKeyFormat2.newBuilder().setEncoding(RowKeyEncoding.FORMATTED)
.setSalt(HashSpec.newBuilder().build())
.setNullableStartIndex(-1)
.setComponents(components)
.build();