Java ODatabaseDocumentTx.exists方法代码示例

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
public OrientConnection connect() throws Exception {
    final OrientGraphFactory graphFactory = new OrientGraphFactory(url.toString(), userName, password);

    final ODatabaseDocumentTx database = graphFactory.getDatabase(false, false);
    if (database.exists()) {
        database.open(userName, password);
        database.drop();
    }

    graphFactory.setAutoStartTx(false);
    graphFactory.declareIntent(new OIntentMassiveInsert().setEnableCache(false));

    return new AbstractOrientConnection(graphFactory.getNoTx()) {
        @Override
        public void close() throws Exception {
            graph.commit();
            graph.getRawGraph().close();
        }
    };
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
public ContentStore(final String type, String name) {
    startupIfEnginesAreMissing();
    db = new ODatabaseDocumentTx(type + ":" + name);
    boolean exists = db.exists();
    if (!exists) {
        db.create();
    }
    db = ODatabaseDocumentPool.global().acquire(type + ":" + name, "admin", "admin");
    ODatabaseRecordThreadLocal.INSTANCE.set(db);
    if (!exists) {
        updateSchema();
    }
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
private void initDatabaseDocumentTx(String database)
{
    ODatabaseDocumentTx documentTx = new ODatabaseDocumentTx(dbUrl + database);
    if (!documentTx.exists())
    {
        documentTx.create();
    }
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
private ODatabaseDocumentTx getDatabase(String url, String userName, String password)
{
    ODatabaseDocumentTx tx = new ODatabaseDocumentTx(url);
    if (!tx.exists())
    {
        tx.create();
        return tx;
    }
    return tx.open(userName, password);
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
private static void init(String database)
{
    ODatabaseDocumentTx documentTx = new ODatabaseDocumentTx(path + database);

    if (!documentTx.exists())
    {
        documentTx.create();
        //database.open(OrientBaseGraph.ADMIN, OrientBaseGraph.ADMIN);
    }
    //        else
    //        {
    //            database.create();
    //        }
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
@Override
public ODatabaseDocumentTx connect(final String name, final boolean create) {
  checkNotNull(name);
  ensureStarted();

  String uri = connectionUri(name);
  ODatabaseDocumentTx db = new ODatabaseDocumentTx(uri);

  if (db.exists()) {
    db.open(SYSTEM_USER, SYSTEM_PASSWORD);
    log.debug("Opened database: {} -> {}", name, db);
  }
  else {
    if (create) {
      db.create();
      log.debug("Created database: {} -> {}", name, db);

      // invoke created callback
      try {
        created(db, name);
      }
      catch (Exception e) {
        Throwables.throwIfUnchecked(e);
        throw new RuntimeException(e);
      }
    }
    else {
      log.debug("Database does not exist: {}", name);
    }
  }

  return db;
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
@Override
public boolean createEventLogRepository() {
    final ODatabaseDocumentTx db = new ODatabaseDocumentTx(eventLogRepoDBUrl);
    if (!db.exists()) {
        db.create();
        log.logp(INFO, getClass().getName(), "createEventLogRepository", String.format("created db = %s", eventLogRepoDBUrl));
        return true;
    } else {
        return false;
    }
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
/**
 * @param create
 *            if true automatically creates database if database with given
 *            URL does not exist
 * @param open
 *            if true automatically opens the database
 */
protected ODatabaseDocumentTx getDatabase(boolean create, boolean open) {
    final ODatabaseDocumentTx db = new ODatabaseDocumentTx(url);
    if (!db.getURL().startsWith("remote:") && !db.exists()) {
        if (create)
            db.create();
        else if (open) throw new ODatabaseException("Database '" + url + "' not found");
    } else if (open) db.open(user, password);

    return db;
}
 

import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; //导入方法依赖的package包/类
/**
 * Returns <code>true</code> if the database exists, <code>false</code>
 * otherwise.
 */
protected boolean exists(ODatabaseDocumentTx db) {
	return db.exists();
}