public XmlEntityBuilder withNamespace(final String prefix, final String namespace) {
      xmlEntity.prefix = prefix;
      xmlEntity.namespace = namespace;

      return this;
    }
Sets the element prefix and namespace as returned by {@link XmlEntity#getPrefix()} and
{@link XmlEntity#getNamespace()} respectively. Defaults are {@link CacheXml#PREFIX} and
{@link CacheXml#GEODE_NAMESPACE} respectively.

@param prefix Prefix of element
@param namespace Namespace of element
@return this XmlEntityBuilder
@since GemFire 8.1
geode-core/src/main/java/org/apache/geode/management/internal/configuration/domain/XmlEntity.java