001package co.codewizards.cloudstore.local.persistence;
002
003import static java.util.Objects.*;
004
005import java.util.ArrayList;
006import java.util.Collection;
007
008import javax.jdo.Query;
009
010public class NormalFileDao extends Dao<NormalFile, NormalFileDao> {
011        /**
012         * Get those {@link RepoFile}s whose {@link RepoFile#getSha1() sha1} and {@link RepoFile#getLength() length}
013         * match the given parameters.
014         * @param sha1 the {@link RepoFile#getSha1() sha1} for which to query. Must not be <code>null</code>.
015         * @param length the {@link RepoFile#getLength() length} for which to query.
016         * @return those {@link RepoFile}s matching the given criteria. Never <code>null</code>; but maybe empty.
017         */
018        public Collection<NormalFile> getNormalFilesForSha1(final String sha1, final long length) {
019                requireNonNull(sha1, "sha1");
020                final Query query = pm().newNamedQuery(getEntityClass(), "getNormalFiles_sha1_length");
021                try {
022                        @SuppressWarnings("unchecked")
023                        final
024                        Collection<NormalFile> repoFiles = (Collection<NormalFile>) query.execute(sha1, length);
025                        return new ArrayList<NormalFile>(repoFiles);
026                } finally {
027                        query.closeAll();
028                }
029        }
030
031        @Override
032        public void deletePersistent(final NormalFile entity) {
033                throw new UnsupportedOperationException("Use RepoFileDao for this operation!");
034        }
035
036        @Override
037        public <P extends NormalFile> P makePersistent(final P entity) {
038                throw new UnsupportedOperationException("Use RepoFileDao for this operation!");
039        }
040}