/**
* Triggers UnitOfWork valueholders directly without triggering the wrapped valueholder (this).
*
* <p>When in transaction and/or for pessimistic locking the UnitOfWorkValueHolder needs to be
* triggered directly without triggering the wrapped valueholder. However only the wrapped
* valueholder knows how to trigger the indirection, i.e. it may be a batchValueHolder, and it
* stores all the info like the row and the query. Note: This method is not thread-safe. It must
* be used in a synchronized manner. The batch value holder must use a batch query relative to the
* unit of work, as the batch is local to the unit of work.
*/
public Object instantiateForUnitOfWorkValueHolder(UnitOfWorkValueHolder unitOfWorkValueHolder) {
UnitOfWorkImpl unitOfWork = unitOfWorkValueHolder.getUnitOfWork();
ReadQuery localQuery = unitOfWork.getBatchQueries().get(this.query);
if (localQuery == null) {
localQuery = (ReadQuery) this.query.clone();
unitOfWork.getBatchQueries().put(this.query, localQuery);
}
return this.mapping.extractResultFromBatchQuery(
localQuery,
this.parentCacheKey,
this.row,
unitOfWorkValueHolder.getUnitOfWork(),
this.originalQuery);
}
