com.baidu.hugegraph.backend.store.rocksdb

Class RocksDBSessions.Session

java.lang.Object

com.baidu.hugegraph.backend.store.BackendSession

com.baidu.hugegraph.backend.store.rocksdb.RocksDBSessions.Session

Enclosing class:

RocksDBSessions

public abstract static class RocksDBSessions.Session
extends BackendSession

Session for RocksDB

Field Summary

Fields

Modifier and Type	Field and Description
static int	SCAN_ANY
static int	SCAN_GT_BEGIN
static int	SCAN_GTE_BEGIN
static int	SCAN_LT_END
static int	SCAN_LTE_END
static int	SCAN_PREFIX_BEGIN
static int	SCAN_PREFIX_END

Constructor Summary

Constructors

Constructor and Description
Session()

Method Summary

Modifier and Type	Method and Description
abstract void	delete(String table, byte[] key)
abstract void	delete(String table, byte[] keyFrom, byte[] keyTo)
abstract byte[]	get(String table, byte[] key)
abstract void	increase(String table, byte[] key, byte[] value)
static boolean	matchScanType(int expected, int actual)
abstract void	merge(String table, byte[] key, byte[] value)
abstract String	property(String table, String property)
abstract void	put(String table, byte[] key, byte[] value)
abstract void	remove(String table, byte[] key)
abstract BackendEntry.BackendColumnIterator	scan(String table)
abstract BackendEntry.BackendColumnIterator	scan(String table, byte[] prefix)
BackendEntry.BackendColumnIterator	scan(String table, byte[] keyFrom, byte[] keyTo)
abstract BackendEntry.BackendColumnIterator	scan(String table, byte[] keyFrom, byte[] keyTo, int scanType)

Methods inherited from class com.baidu.hugegraph.backend.store.BackendSession

attach, close, closeable, closed, commit, detach, hasChanges, rollback, txState, txState

Methods inherited from class java.lang.Object

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

Field Detail

SCAN_ANY

public static final int SCAN_ANY

See Also:

Constant Field Values

SCAN_PREFIX_BEGIN

public static final int SCAN_PREFIX_BEGIN

See Also:

Constant Field Values

SCAN_PREFIX_END

public static final int SCAN_PREFIX_END

See Also:

Constant Field Values

SCAN_GT_BEGIN

public static final int SCAN_GT_BEGIN

See Also:

Constant Field Values

SCAN_GTE_BEGIN

public static final int SCAN_GTE_BEGIN

See Also:

Constant Field Values

SCAN_LT_END

public static final int SCAN_LT_END

See Also:

Constant Field Values

SCAN_LTE_END

public static final int SCAN_LTE_END

See Also:

Constant Field Values

Constructor Detail

Session

public Session()

Method Detail

property

public abstract String property(String table,
                                String property)

put

public abstract void put(String table,
                         byte[] key,
                         byte[] value)

merge

public abstract void merge(String table,
                           byte[] key,
                           byte[] value)

increase

public abstract void increase(String table,
                              byte[] key,
                              byte[] value)

remove

public abstract void remove(String table,
                            byte[] key)

delete

public abstract void delete(String table,
                            byte[] keyFrom,
                            byte[] keyTo)

delete

public abstract void delete(String table,
                            byte[] key)

get

public abstract byte[] get(String table,
                           byte[] key)

scan

public abstract BackendEntry.BackendColumnIterator scan(String table)

scan

public abstract BackendEntry.BackendColumnIterator scan(String table,
                                                        byte[] prefix)

scan

public abstract BackendEntry.BackendColumnIterator scan(String table,
                                                        byte[] keyFrom,
                                                        byte[] keyTo,
                                                        int scanType)

scan

public BackendEntry.BackendColumnIterator scan(String table,
                                               byte[] keyFrom,
                                               byte[] keyTo)

matchScanType

public static boolean matchScanType(int expected,
                                    int actual)