org.apache.ignite.internal.processors.cache.persistence.defragmentation

Class LinkMap

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.defragmentation.LinkMap

public class LinkMap
extends Object

Class that holds mappings of old links to new links.

Field Summary

Fields

Modifier and Type	Field and Description
static IOVersions<? extends BPlusInnerIO<?>>	INNER_IO_VERSIONS
static IOVersions<? extends BPlusLeafIO<?>>	LEAF_IO_VERSIONS
static int	META_PAGE_IDX Tree meta page index.

Constructor Summary

Constructors

Constructor and Description
LinkMap(CacheGroupContext ctx, PageMemory pageMem, long metaPageId, boolean initNew)
LinkMap(int grpId, String grpName, PageMemory pageMem, long metaPageId, boolean initNew)

Method Summary

Modifier and Type	Method and Description
long	get(long oldLink) Get new link by old link.
void	put(long oldLink, long newLink) Add link mapping.

Methods inherited from class java.lang.Object

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

Field Detail

META_PAGE_IDX

public static final int META_PAGE_IDX

Tree meta page index.

See Also:

Constant Field Values

LEAF_IO_VERSIONS

public static final IOVersions<? extends BPlusLeafIO<?>> LEAF_IO_VERSIONS

INNER_IO_VERSIONS

public static final IOVersions<? extends BPlusInnerIO<?>> INNER_IO_VERSIONS

Constructor Detail

LinkMap

public LinkMap(CacheGroupContext ctx,
               PageMemory pageMem,
               long metaPageId,
               boolean initNew)
        throws IgniteCheckedException

Parameters:

ctx - Cache group context.

pageMem - Page memory.

metaPageId - Meta page id.

initNew - If tree should be (re)created.

Throws:

IgniteCheckedException

LinkMap

public LinkMap(int grpId,
               String grpName,
               PageMemory pageMem,
               long metaPageId,
               boolean initNew)
        throws IgniteCheckedException

Parameters:

grpId - Cache group id.

grpName - Cache group name.

pageMem - Page memory.

metaPageId - Meta page id.

initNew - If tree should be (re)created.

Throws:

IgniteCheckedException

Method Detail

put

public void put(long oldLink,
                long newLink)
         throws IgniteCheckedException

Add link mapping.

Parameters:

oldLink - Old link.

newLink - New link.

Throws:

IgniteCheckedException

get

public long get(long oldLink)
         throws IgniteCheckedException

Get new link by old link.

Parameters:

oldLink - Old link.

Throws:

IgniteCheckedException