Examples with UpdateRequest org.datanucleus.store.rdbms.request.UpdateRequest used on opensource projects

Example 1 with UpdateRequest

use of org.datanucleus.store.rdbms.request.UpdateRequest in project datanucleus-rdbms by datanucleus.

the class RDBMSPersistenceHandler method getUpdateRequest.

/**
 * Returns a request object that will update a row in the given table.
 * The store manager will cache the request object for re-use by subsequent requests to the same table.
 * @param table The table in which to update.
 * @param mmds The metadata corresponding to the columns to be updated.
 *     MetaData whose columns exist in supertables will be ignored.
 * @param cmd ClassMetaData of the object of the request
 * @param clr ClassLoader resolver
 * @return An update request object.
 */
private Request getUpdateRequest(DatastoreClass table, AbstractMemberMetaData[] mmds, AbstractClassMetaData cmd, ClassLoaderResolver clr) {
    RequestIdentifier reqID = new RequestIdentifier(table, mmds, RequestType.UPDATE, cmd.getFullClassName());
    Request req = requestsByID.get(reqID);
    if (req == null) {
        req = new UpdateRequest(table, mmds, cmd, clr);
        requestsByID.put(reqID, req);
    }
    return req;
}