code: public ValueSet readDependency(Object id, boolean delete) { // SKS-O
          Result result = htod.readDependency(id, delete);
          if (result.returnCode == HTODDynacache.DISK_EXCEPTION) {
              stopOnError(result.diskException);
              this.htod.returnToResultPool(result);
              return HTODDynacache.EMPTY_VS;
          }
          ValueSet valueSet = (ValueSet) result.data;
          if (valueSet == null) {
              valueSet = HTODDynacache.EMPTY_VS;
          }
          this.htod.returnToResultPool(result);
          return valueSet;
      }
docs: Call this method to read a specified dependency id which contains the cache ids from the disk.
  
  @param id
  - dependency id.
  @param delete
  - boolean to delete the dependency id after reading
  @return valueSet - the collection of cache ids.