public void fromDataPre_GEODE_1_1_1_0(DataInput in) throws IOException, ClassNotFoundException {
    type = DataSerializer.readString(in);
    attributes = DataSerializer.readObject(in);
    xmlDefinition = DataSerializer.readString(in);
    searchString = DataSerializer.readString(in);
    prefix = DataSerializer.readString(in);
    namespace = DataSerializer.readString(in);
    cacheProvider = createDefaultCacheProvider();
  }
Gets the namespace for the child element.

@return XML element namespace for the child element
geode-core/src/main/java/org/apache/geode/management/internal/configuration/domain/XmlEntity.java