public Builder setPdxPersistent(final boolean persistent) {
      cacheConfig.setPdxPersistent(persistent);
      return this;
    }
Sets whether the PDX type meta-data should be persisted to disk.

@param persistent a boolean indicating whether PDX type meta-data should be persisted to
       disk.
@return this Builder instance.
geode-core/src/main/java/org/apache/geode/distributed/ServerLauncher.java