Examples with Database org.hsqldb_voltpatches.Database used on opensource projects

Example 1 with Database

use of org.hsqldb_voltpatches.Database in project voltdb by VoltDB.

the class DatabaseInformation method newDatabaseInformation.

/**
     * Factory method returns the fullest system table producer
     * implementation available.  This instantiates implementations beginning
     * with the most complete, finally choosing an empty table producer
     * implemenation (this class) if no better instance can be constructed.
     * @param db The Database object for which to produce system tables
     * @return the fullest system table producer
     *      implementation available
     */
public static final DatabaseInformation newDatabaseInformation(Database db) {
    Class c = null;
    try {
        c = Class.forName("org.hsqldb_voltpatches.dbinfo.DatabaseInformationFull");
    } catch (Exception e) {
        try {
            c = Class.forName("org.hsqldb_voltpatches.dbinfo.DatabaseInformationMain");
        } catch (Exception e2) {
        }
    }
    try {
        Class[] ctorParmTypes = new Class[] { Database.class };
        Object[] ctorParms = new Object[] { db };
        Constructor ctor = c.getDeclaredConstructor(ctorParmTypes);
        return (DatabaseInformation) ctor.newInstance(ctorParms);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return new DatabaseInformation(db);
}

Example 2 with Database

use of org.hsqldb_voltpatches.Database in project voltdb by VoltDB.

the class ScaledRAFile method newScaledRAFile.

/**
     * seekPosition is the position in seek() calls or after reading or writing
     * realPosition is the file position
     */
static Storage newScaledRAFile(Database database, String name, boolean readonly, int type, String classname, String key) throws FileNotFoundException, IOException {
    if (classname != null) {
        try {
            Class zclass = Class.forName(classname);
            Constructor constructor = zclass.getConstructor(new Class[] { String.class, Boolean.class, Object.class });
            return (Storage) constructor.newInstance(new Object[] { name, new Boolean(readonly), key });
        } catch (ClassNotFoundException e) {
            throw new IOException();
        } catch (NoSuchMethodException e) {
            throw new IOException();
        } catch (InstantiationException e) {
            throw new IOException();
        } catch (IllegalAccessException e) {
            throw new IOException();
        } catch (java.lang.reflect.InvocationTargetException e) {
            throw new IOException();
        }
    }
    if (type == DATA_FILE_JAR) {
        return new ScaledRAFileInJar(name);
    } else if (type == DATA_FILE_RAF) {
        return new ScaledRAFile(database, name, readonly);
    } else {
        RandomAccessFile file = new RandomAccessFile(name, readonly ? "r" : "rw");
        if (file.length() > MAX_NIO_LENGTH) {
            return new ScaledRAFile(database, name, file, readonly);
        } else {
            file.close();
        }
        try {
            Class.forName("java.nio.MappedByteBuffer");
            Class c = Class.forName("org.hsqldb_voltpatches.persist.ScaledRAFileHybrid");
            Constructor constructor = c.getConstructor(new Class[] { Database.class, String.class, boolean.class });
            return (ScaledRAInterface) constructor.newInstance(new Object[] { database, name, new Boolean(readonly) });
        } catch (Exception e) {
            return new ScaledRAFile(database, name, readonly);
        }
    }
}