|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectsimpledb.server.SimpleDB
public class SimpleDB
The class that provides system-wide static global values.
These values must be initialized by the method
init
before use.
The methods initFileMgr
,
initFileAndLogMgr
,
initFileLogAndBufferMgr
,
and initMetadataMgr
provide limited initialization, and are useful for
debugging purposes.
Field Summary | |
---|---|
static int |
BUFFER_SIZE
|
static String |
LOG_FILE
|
Constructor Summary | |
---|---|
SimpleDB()
|
Method Summary | |
---|---|
static BufferMgr |
bufferMgr()
|
static FileMgr |
fileMgr()
|
static void |
init(String dirname)
Initializes the system. |
static void |
initFileAndLogMgr(String dirname)
Initializes the file and log managers. |
static void |
initFileLogAndBufferMgr(String dirname)
Initializes the file, log, and buffer managers. |
static void |
initFileMgr(String dirname)
Initializes only the file manager. |
static void |
initMetadataMgr(boolean isnew,
Transaction tx)
Initializes metadata manager. |
static LogMgr |
logMgr()
|
static MetadataMgr |
mdMgr()
|
static Planner |
planner()
Creates a planner for SQL commands. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static int BUFFER_SIZE
public static String LOG_FILE
Constructor Detail |
---|
public SimpleDB()
Method Detail |
---|
public static void init(String dirname)
dirname
- the name of the database directorypublic static void initFileMgr(String dirname)
dirname
- the name of the database directorypublic static void initFileAndLogMgr(String dirname)
dirname
- the name of the database directorypublic static void initFileLogAndBufferMgr(String dirname)
dirname
- the name of the database directorypublic static void initMetadataMgr(boolean isnew, Transaction tx)
isnew
- an indication of whether a new
database needs to be created.tx
- the transaction performing the initializationpublic static FileMgr fileMgr()
public static BufferMgr bufferMgr()
public static LogMgr logMgr()
public static MetadataMgr mdMgr()
public static Planner planner()
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |