public Builder setPdxDiskStore(final String pdxDiskStore) {
      cacheConfig.setPdxDiskStore(pdxDiskStore);
      return this;
    }
Sets the Geode Disk Store to be used to persist PDX type meta-data.

@param pdxDiskStore a String indicating the name of the Geode Disk Store to use to store
       PDX type meta-data
@return this Builder instance.
geode-core/src/main/java/org/apache/geode/distributed/ServerLauncher.java