public BDBCreator(String tableName, ArrayList<Integer> keyPositions, int secondaryIndex) {
/* Creates and loads a BDB table with a secondary index on the column defined by*/
this.tableName = tableName.toLowerCase();
this.keyPositions = keyPositions;
this.secIndexPos = secondaryIndex;
this.tMap = Main.indexTypeMaps.get(this.tableName);
setEnvironment();
dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
myDB = myDbEnvironment.openDatabase(null, this.tableName, dbConfig);
SecondaryConfig secConfig = new SecondaryConfig();
secConfig.setAllowCreate(true);
secConfig.setSortedDuplicates(true);
createSecDB(secConfig);
setConfig(dbConfig, secConfig);
loadData();
if (secDB != null) {
secDB.close();
}
if (myDB != null) {
myDB.close();
}
closeEnvironment();
}
public static void main(String[] args) {
Environment myEnv;
Database myDatabase;
try {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
myEnv = new Environment(new File("/Users/broso/testDB"), envConfig);
// Environment open omitted for clarity
DatabaseConfig myDbConfig = new DatabaseConfig();
SecondaryConfig mySecConfig = new SecondaryConfig();
myDbConfig.setAllowCreate(true);
mySecConfig.setAllowCreate(true);
// Duplicates are frequently required for secondary databases.
mySecConfig.setSortedDuplicates(true);
// Open the primary
String dbName = "myPrimaryDatabase";
Database myDb = myEnv.openDatabase(null, dbName, myDbConfig);
// Open the secondary.
// Key creators are described in the next section.
// AKeyCreator akc = new AKeyCreator();
// Get a secondary object and set the key creator on it.
// mySecConfig.setKeyCreator(keyCreator);
// Perform the actual open
String secDbName = "mySecondaryDatabase";
SecondaryDatabase mySecDb = myEnv.openSecondaryDatabase(null, secDbName, myDb, mySecConfig);
} catch (DatabaseException de) {
// Exception handling goes here
}
}
