@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    modifiable = in.readBoolean();
  }
Setter for property modifiable.

@param modifiable New value of property modifiable.
geode-core/src/main/java/org/apache/geode/cache/query/internal/StructBag.java