| java.lang.Object | |
| ↳ | com.pnfsoftware.jeb.core.dao.impl.JEB2FileDatabase |
Class Overview
JEB database file ("*.jdb2") manager.
Summary
| Constants | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| int | FLAG_COMPRESS | This flags is used to specify that the record should be compressed | |||||||||
| int | FLAG_ENCRYPT | This flags is used to specify that the record should be encrypted | |||||||||
| int | FLAG_NONE | No flag | |||||||||
| int | MARKER | File header marker, little-endian: JDB2 |
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| int | TYPE_PROJECT | Project block marker, little-endian: PRJ and 1-byte flags |
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| Public Constructors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| JEB2FileDatabase(String basedir) | |||||||||||
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| boolean |
deleteFile(String key, int version)
Delete a file.
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| IFileDatabaseReader |
getReader(String key)
@return
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| IFileDatabaseWriter |
getWriter(String key)
@return
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| boolean |
hasFile(String key, int version)
Determine if the database contains the given file.
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| byte[] |
loadFile(String key, int version)
Retrieve the contents of a file.
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| boolean |
saveFile(String key, int version, byte[] data)
Store the contents of a file.
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[Expand]
Inherited Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
From class
java.lang.Object
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From interface
com.pnfsoftware.jeb.core.dao.IFileDatabase
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Constants
public static final int FLAG_COMPRESS
This flags is used to specify that the record should be compressed
Constant Value:
1
(0x00000001)
public static final int FLAG_ENCRYPT
This flags is used to specify that the record should be encrypted
Constant Value:
2
(0x00000002)
public static final int FLAG_NONE
No flag
Constant Value:
0
(0x00000000)
public static final int MARKER
File header marker, little-endian: JDB2
Constant Value:
843203658
(0x3242444a)
public static final int TYPE_PROJECT
Project block marker, little-endian: PRJ and 1-byte flags
Constant Value:
4870736
(0x004a5250)
Public Constructors
public JEB2FileDatabase (String basedir)
Public Methods
public boolean deleteFile (String key, int version)
Delete a file.
Parameters
| key | file key |
|---|---|
| version | file version |
Returns
- success indicator
public boolean hasFile (String key, int version)
Determine if the database contains the given file.
Parameters
| key | file key |
|---|---|
| version | file version |
Returns
- presence indicator
public byte[] loadFile (String key, int version)
Retrieve the contents of a file.
Parameters
| key | file key |
|---|---|
| version | file version |
Returns
- file data, null on error
public boolean saveFile (String key, int version, byte[] data)
Store the contents of a file.
Parameters
| key | file key |
|---|---|
| version | file version |
| data | file data |
Returns
- success indicator