public static synchronized void dropTableIfExists() throws Exception {
HBaseAdmin admin = HBaseUtils.getHBaseAdmin();
if (admin.tableExists(TABLE_NAME)) {
admin.disableTable(TABLE_NAME);
admin.deleteTable(TABLE_NAME);
}
}
public H2MetaTable(Database database) throws Exception {
createTableIfNotExists();
this.database = database;
table = new HTable(HBaseUtils.getConfiguration(), TABLE_NAME);
watcher = new ZooKeeperWatcher(table.getConfiguration(), "H2MetaTableWatcher", this);
tracker = new H2MetaTableTracker(watcher, this);
tracker.start();
}
public static synchronized void createTableIfNotExists() throws Exception {
HBaseAdmin admin = HBaseUtils.getHBaseAdmin();
HTableDescriptor htd = new HTableDescriptor(TABLE_NAME);
HColumnDescriptor hcd = new HColumnDescriptor(FAMILY);
htd.addFamily(hcd);
hcd.setMaxVersions(1);
if (!admin.tableExists(TABLE_NAME)) {
admin.createTable(htd);
}
}