private void blobifyValue() {
    if (value instanceof byte[]) {
      // already blobified
      return;
    }
    try {
      value = BlobHelper.serializeToBlob(value);
    } catch (IOException iox) {
      LOG.error("Attribute '" + name + "' value: " + value
          + " cannot be serialized due to the following exception", iox);
    }
  }
Constructor which creates a 'deferred' event. This is used when the value should only be
applied when the object is serialized.

@param session the session from which the value ultimately will be retrieved
@param attribute the name of the attribute
extensions/geode-modules-session-internal/src/main/java/org/apache/geode/modules/session/internal/filter/attributes/DeltaEvent.java