com.sleepycat.je.dbi

Class INList

java.lang.Object

com.sleepycat.je.dbi.INList

public class INList
extends java.lang.Object

The INList is a list of in-memory INs for a given environment.

Constructor Summary

Constructors

Constructor and Description
INList(INList orig, EnvironmentImpl envImpl) Used only by tree verifier when validating INList.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(IN in) An IN has just come into memory, add it to the list.
void	clear() Clear the entire list during recovery and at shutdown.
void	dump()
IN	first()
java.util.SortedSet	getINs()
int	getSize()
java.util.Iterator	iterator() Return an iterator over the main 'ins' set.
void	latchMajor() The locking hierarchy is: 1.
void	releaseMajorLatch()
void	releaseMajorLatchIfHeld()
void	remove(IN in) An IN is getting swept or is displaced by recovery.
void	removeLatchAlreadyHeld(IN in) An IN is getting evicted or is displaced by recovery.
java.util.SortedSet	tailSet(IN in)

Methods inherited from class java.lang.Object

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

Constructor Detail

INList

public INList(INList orig,
      EnvironmentImpl envImpl)
       throws DatabaseException

Used only by tree verifier when validating INList. Must be called with orig.majorLatch acquired.

Throws:

DatabaseException

Method Detail

getINs

public java.util.SortedSet getINs()

getSize

public int getSize()

add

public void add(IN in)
         throws DatabaseException

An IN has just come into memory, add it to the list.

Throws:

DatabaseException

removeLatchAlreadyHeld

public void removeLatchAlreadyHeld(IN in)
                            throws DatabaseException

An IN is getting evicted or is displaced by recovery. Caller is responsible for acquiring the major latch before calling this and releasing it when they're done.

Throws:

DatabaseException

remove

public void remove(IN in)
            throws DatabaseException

An IN is getting swept or is displaced by recovery.

Throws:

DatabaseException

tailSet

public java.util.SortedSet tailSet(IN in)
                            throws DatabaseException

Throws:

DatabaseException

first

public IN first()
         throws DatabaseException

Throws:

DatabaseException

iterator

public java.util.Iterator iterator()

Return an iterator over the main 'ins' set. Returned iterator will not show the elements in addedINs. The major latch should be held before entering. The caller is responsible for releasing the major latch when they're finished with the iterator.

Returns:

an iterator over the main 'ins' set.

clear

public void clear()
           throws DatabaseException

Clear the entire list during recovery and at shutdown.

Throws:

DatabaseException

dump

public void dump()

latchMajor

public void latchMajor()
                throws DatabaseException

The locking hierarchy is: 1. INList major latch. 2. IN latch. In other words, the INList major latch must be taken before any IN latches to avoid deadlock.

Throws:

DatabaseException

releaseMajorLatchIfHeld

public void releaseMajorLatchIfHeld()
                             throws DatabaseException

Throws:

DatabaseException

releaseMajorLatch

public void releaseMajorLatch()
                       throws DatabaseException

Throws:

DatabaseException