Examples with MCRStreamQuery org.mycore.backend.jpa.MCRStreamQuery used on opensource projects

Example 1 with MCRStreamQuery

use of org.mycore.backend.jpa.MCRStreamQuery in project mycore by MyCoRe-Org.

the class MCRIFSCommands method moveContentToNewStore.

private static List<String> moveContentToNewStore(String source_store, String target_store, String select_key, String select_value) {
    // check stores
    MCRContentStore from_store = MCRContentStoreFactory.getStore(source_store);
    @SuppressWarnings("unused") MCRContentStore to_store = MCRContentStoreFactory.getStore(target_store);
    EntityManager em = MCREntityManagerProvider.getCurrentEntityManager();
    MCRStreamQuery<MCRFSNODES> streamQuery = MCRStreamQuery.getInstance(em, "from MCRFSNODES where storeid=:storeid and " + select_key + "=:selectValue order by owner", MCRFSNODES.class).setParameter("storeid", from_store.getID()).setParameter("selectValue", select_value);
    try (Stream<MCRFSNODES> resultStream = streamQuery.getResultStream()) {
        return resultStream.peek(em::detach).map(MCRFSNODES::getId).map(ifsId -> String.format(Locale.ROOT, "move ifs node %s to store %s", ifsId, target_store)).collect(Collectors.toList());
    }
}