Package com.pnfsoftware.jeb.core.dao.impl

Class JDB2Manager

java.lang.Object

com.pnfsoftware.jeb.core.dao.impl.JDB2Manager

All Implemented Interfaces:

IFileDatabase

public class JDB2Manager
extends Object
implements IFileDatabase

JEB database file ("*.jdb2") manager.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EXTENSION	JEB database file extension with the Leading dot.
static final int	FLAG_COMPRESS	This flags is used to specify that the record should be compressed
static final int	FLAG_CRCCHECK	The record should be accompanied by a CRC32 value to verify its basic integrity
static final int	FLAG_ENCRYPT	This flags is used to specify that the record should be encrypted
static final int	FLAG_NONE	No flag
static final int	MARKER	File header marker, little-endian: JDB2
static final int	TYPE_ARTIFACTS	Artifacts collections, little-endian: ART
static final int	TYPE_PROJECT	Project block marker, little-endian: PRJ
static final int	TYPE_PROJECT_CONFIGURATION	Persisted Project Configuration: PPC
static final int	TYPE_PROJECT_METADATA	Persisted Project Metadata: PPM
static final int	TYPE_QSTATES	Quick-states block marker, little-endian: QCK

Constructor Summary

Constructors

Constructor	Description
JDB2Manager(String basedir)

Method Summary

Modifier and Type	Method	Description
boolean	deleteFile(String key)	Delete a file.
IFileDatabaseReader	getDatabaseReader(String key)	Get a database record reader.
IFileDatabaseWriter	getDatabaseWriter(String key)	Get a database record writer.
File	getFileObject(String key)	Attempt to get the filesystem object backing this db file entry.
InputStream	getFileReader(String key)	Get an input stream reader for low-level reading from a file.
OutputStream	getFileWriter(String key)	Get an output stream reader for low-level writing to a file.
boolean	hasFile(String key)	Determine if the database contains the given file (the file must exist).
byte[]	loadFile(String key)	DO NOT USE! PROJECT record only, old format!
static String	projectTypeToName(int type)
boolean	saveFile(String key, byte[] data)	DO NOT USE! PROJECT record only, old format!

Methods inherited from class java.lang.Object

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

Field Details

EXTENSION

public static final String EXTENSION

JEB database file extension with the Leading dot. The case matters.

See Also:

• Constant Field Values

MARKER

public static final int MARKER

File header marker, little-endian: JDB2

See Also:

• Constant Field Values

TYPE_PROJECT

public static final int TYPE_PROJECT

Project block marker, little-endian: PRJ

See Also:

• Constant Field Values

TYPE_QSTATES

public static final int TYPE_QSTATES

Quick-states block marker, little-endian: QCK

See Also:

• Constant Field Values

TYPE_ARTIFACTS

public static final int TYPE_ARTIFACTS

Artifacts collections, little-endian: ART

See Also:

• Constant Field Values

TYPE_PROJECT_CONFIGURATION

public static final int TYPE_PROJECT_CONFIGURATION

Persisted Project Configuration: PPC

See Also:

• Constant Field Values

TYPE_PROJECT_METADATA

public static final int TYPE_PROJECT_METADATA

Persisted Project Metadata: PPM

See Also:

• Constant Field Values

FLAG_NONE

public static final int FLAG_NONE

No flag

See Also:

• Constant Field Values

FLAG_COMPRESS

public static final int FLAG_COMPRESS

This flags is used to specify that the record should be compressed

See Also:

• Constant Field Values

FLAG_ENCRYPT

public static final int FLAG_ENCRYPT

This flags is used to specify that the record should be encrypted

See Also:

• Constant Field Values

FLAG_CRCCHECK

public static final int FLAG_CRCCHECK

The record should be accompanied by a CRC32 value to verify its basic integrity

See Also:

• Constant Field Values

Constructor Details

JDB2Manager

public JDB2Manager(String basedir)

Method Details

saveFile

public boolean saveFile(String key,
 byte[] data)

DO NOT USE! PROJECT record only, old format!

Specified by:

saveFile in interface IFileDatabase

Parameters:

key - file key

data - file data

Returns:

success indicator

loadFile

public byte[] loadFile(String key)

DO NOT USE! PROJECT record only, old format!

Specified by:

loadFile in interface IFileDatabase

Parameters:

key - file key

Returns:

file data, null on error

hasFile

public boolean hasFile(String key)

Description copied from interface: IFileDatabase

Determine if the database contains the given file (the file must exist).

Specified by:

hasFile in interface IFileDatabase

Parameters:

key - file key

Returns:

presence indicator

getFileObject

public File getFileObject(String key)

Description copied from interface: IFileDatabase

Attempt to get the filesystem object backing this db file entry.

This method may not be implemented (e.g. if this database is not backed by on-disk files), in which case the implementation may throw an UnsupportedOperationException.

Specified by:

getFileObject in interface IFileDatabase

Returns:

deleteFile

public boolean deleteFile(String key)

Description copied from interface: IFileDatabase

Delete a file.

Specified by:

deleteFile in interface IFileDatabase

Parameters:

key - file key

Returns:

success indicator

getFileReader

public InputStream getFileReader(String key)
                          throws FileNotFoundException

Description copied from interface: IFileDatabase

Get an input stream reader for low-level reading from a file. The client is responsible for closing the stream after usage.

This method may not be implemented, in which case the implementation may throw an UnsupportedOperationException.

Specified by:

getFileReader in interface IFileDatabase

Returns:

Throws:

FileNotFoundException

getFileWriter

public OutputStream getFileWriter(String key)
                           throws FileNotFoundException

Description copied from interface: IFileDatabase

Get an output stream reader for low-level writing to a file. The client is responsible for closing the stream after usage.

This method may not be implemented, in which case the implementation may throw an UnsupportedOperationException.

Specified by:

getFileWriter in interface IFileDatabase

Returns:

Throws:

FileNotFoundException

getDatabaseWriter

public IFileDatabaseWriter getDatabaseWriter(String key)
                                      throws IOException

Description copied from interface: IFileDatabase

Get a database record writer.

This method may not be implemented, in which case the implementation may throw an UnsupportedOperationException.

Specified by:

getDatabaseWriter in interface IFileDatabase

Returns:

Throws:

IOException

getDatabaseReader

public IFileDatabaseReader getDatabaseReader(String key)
                                      throws IOException

Description copied from interface: IFileDatabase

Get a database record reader.

This method may not be implemented, in which case the implementation may throw an UnsupportedOperationException.

Specified by:

getDatabaseReader in interface IFileDatabase

Returns:

Throws:

IOException

projectTypeToName

public static String projectTypeToName(int type)