com.db4o
Class Db4o

java.lang.Object
  |
  +--com.db4o.Db4o

public final class Db4o

extends java.lang.Object

- the db4o factory.

The Db4o class serves as a factory, to open ObjectContainer connections. Global settings and the version information are also found in the Db4o class.

Method Summary

static void	echo(boolean displayMessages) turns db4o messages on and off.
static ObjectContainer	openFile(java.lang.String databaseFileName) opens an ObjectContainer interface to the specified database file.
static ObjectContainer	use(java.lang.Object jNLPRandomAccessFile) Java Web Start interface to open an ObjectContainer on a JNLPRandomAccessFile.
static java.lang.String	version() returns information on the currently used db4o version.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

echo

public static final void echo(boolean displayMessages)

turns db4o messages on and off.

Parameters:

displayMessages - true if echo messages are to be given out

openFile

public static final ObjectContainer openFile(java.lang.String databaseFileName)

opens an ObjectContainer interface to the specified database file.

Parameters:

fileName - the full path to the database file

use

public static final ObjectContainer use(java.lang.Object jNLPRandomAccessFile)

Java Web Start interface to open an ObjectContainer on a JNLPRandomAccessFile. Make sure the JNLPRandomAccessFile is opened for readwrite access and that sufficient filespace is reserved with FileContents.setMaxLength().

Parameters:

jNLPRandomAccessFile - a javax.jnlp.JNLPRandomAccessFile, typically opened with javax.jnlp.FileContents.getRandomAccessFile("rw");

version

public static final java.lang.String version()

returns information on the currently used db4o version.

Returns:

version information as a String