Package io.deephaven.engine.table.impl

Class NaturalJoinModifiedSlotTracker

java.lang.Object

io.deephaven.engine.table.impl.NaturalJoinModifiedSlotTracker

public class NaturalJoinModifiedSlotTracker
extends Object

A tracker for modified join hash table slots. After adding an entry, you get back a cookie, which must be passed in on future modification operations for that slot. To process the entries after modifications are complete, call forAllModifiedSlots(ModifiedSlotConsumer).

Field Summary

Fields

Modifier and Type	Field	Description
static final int	FLAG_MASK
static final byte	FLAG_RIGHT_ADD
static final byte	FLAG_RIGHT_CHANGE
static final byte	FLAG_RIGHT_MODIFY_PROBE
static final byte	FLAG_RIGHT_SHIFT

Constructor Summary

Constructors

Constructor	Description
NaturalJoinModifiedSlotTracker()

Method Summary

Modifier and Type	Method	Description
long	addMain(long cookie, int slot, long originalRightValue, byte flags)	Add a slot in the main table.
void	moveTableLocation(long cookie, int oldTableLocation, int newTableLocation)	Move a main table location.

Methods inherited from class java.lang.Object

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

Field Details

FLAG_MASK

public static final int FLAG_MASK

See Also:

• Constant Field Values

FLAG_RIGHT_SHIFT

public static final byte FLAG_RIGHT_SHIFT

See Also:

• Constant Field Values

FLAG_RIGHT_MODIFY_PROBE

public static final byte FLAG_RIGHT_MODIFY_PROBE

See Also:

• Constant Field Values

FLAG_RIGHT_CHANGE

public static final byte FLAG_RIGHT_CHANGE

See Also:

• Constant Field Values

FLAG_RIGHT_ADD

public static final byte FLAG_RIGHT_ADD

See Also:

• Constant Field Values

Constructor Details

NaturalJoinModifiedSlotTracker

public NaturalJoinModifiedSlotTracker()

Method Details

addMain

public long addMain(long cookie,
 int slot,
 long originalRightValue,
 byte flags)

Add a slot in the main table.

Parameters:

slot - the slot to add.

originalRightValue - if we are the addition of the slot, what the right value was before our modification (otherwise ignored)

flags - the flags to or into our state

Returns:

the cookie for future access

moveTableLocation

public void moveTableLocation(long cookie,
 int oldTableLocation,
 int newTableLocation)

Move a main table location.

Parameters:

oldTableLocation - the old hash slot

newTableLocation - the new hash slot