Examples with Pair org.neo4j.helpers.Pair used on opensource projects

Example 1 with Pair

use of org.neo4j.helpers.Pair in project neo4j-mobile-android by neo4j-contrib.

the class OrderedByTypeExpander method doExpand.

@Override
Iterator<Relationship> doExpand(final Node start) {
    return new NestingIterator<Relationship, Pair<RelationshipType, Direction>>(orderedTypes.iterator()) {

        @Override
        protected Iterator<Relationship> createNestedIterator(Pair<RelationshipType, Direction> entry) {
            RelationshipType type = entry.first();
            Direction dir = entry.other();
            return ((dir == Direction.BOTH) ? start.getRelationships(type) : start.getRelationships(type, dir)).iterator();
        }
    };
}

Example 2 with Pair

use of org.neo4j.helpers.Pair in project graphdb by neo4j-attic.

the class HighlyAvailableGraphDatabase method getSlaveContext.

@Override
public SlaveContext getSlaveContext(int eventIdentifier) {
    XaDataSourceManager localDataSourceManager = getConfig().getTxModule().getXaDataSourceManager();
    Collection<XaDataSource> dataSources = localDataSourceManager.getAllRegisteredDataSources();
    @SuppressWarnings("unchecked") Pair<String, Long>[] txs = new Pair[dataSources.size()];
    int i = 0;
    for (XaDataSource dataSource : dataSources) {
        txs[i++] = Pair.of(dataSource.getName(), dataSource.getLastCommittedTxId());
    }
    return new SlaveContext(machineId, eventIdentifier, txs);
}

Example 3 with Pair

use of org.neo4j.helpers.Pair in project graphdb by neo4j-attic.

the class HighlyAvailableGraphDatabase method copyStoreFromMaster.

private void copyStoreFromMaster(Pair<Master, Machine> master) throws Exception {
    msgLog.logMessage("Copying store from master");
    Response<Void> response = master.first().copyStore(new SlaveContext(machineId, 0, new Pair[0]), new ToFileStoreWriter(storeDir));
    EmbeddedGraphDatabase tempDb = new EmbeddedGraphDatabase(storeDir);
    try {
        MasterUtil.applyReceivedTransactions(response, tempDb, MasterUtil.txHandlerForFullCopy());
    } finally {
        tempDb.shutdown();
    }
    msgLog.logMessage("Done copying store from master");
}

Example 4 with Pair

use of org.neo4j.helpers.Pair in project graphdb by neo4j-attic.

the class OnlineBackup method slaveContextOf.

@SuppressWarnings("unchecked")
private SlaveContext slaveContextOf(GraphDatabaseService graphDb) {
    XaDataSourceManager dsManager = ((AbstractGraphDatabase) graphDb).getConfig().getTxModule().getXaDataSourceManager();
    List<Pair<String, Long>> txs = new ArrayList<Pair<String, Long>>();
    for (XaDataSource ds : dsManager.getAllRegisteredDataSources()) {
        txs.add(Pair.of(ds.getName(), ds.getLastCommittedTxId()));
    }
    return new SlaveContext(0, 0, txs.toArray(new Pair[0]));
}

Example 5 with Pair

use of org.neo4j.helpers.Pair in project graphdb by neo4j-attic.

the class TestChangingOfLogFormat method inabilityToStartFromOldFormatFromNonCleanShutdown.

@Test
public void inabilityToStartFromOldFormatFromNonCleanShutdown() throws Exception {
    String storeDir = "target/var/oldlog";
    deleteFileOrDirectory(storeDir);
    GraphDatabaseService db = new EmbeddedGraphDatabase(storeDir);
    Transaction tx = db.beginTx();
    db.createNode();
    tx.success();
    tx.finish();
    Pair<Pair<File, File>, Pair<File, File>> copy = copyLogicalLog(storeDir);
    decrementLogFormat(copy.other().other());
    db.shutdown();
    renameCopiedLogicalLog(storeDir);
    try {
        db = new EmbeddedGraphDatabase(storeDir);
        fail("Shouldn't be able to do recovery (and upgrade log format version) on non-clean shutdown");
    } catch (Exception e) {
        // Good
        e.printStackTrace();
    }
}