public class PagesListNodeIO extends PageIO
removePage(long, long)
Modifier and Type | Field and Description |
---|---|
static IOVersions<PagesListNodeIO> |
VERSIONS |
COMMON_HEADER_END, CRC_OFF, MAX_PAYLOAD_SIZE, PAGE_ID_OFF, T_BPLUS_META, T_DATA, T_DATA_REF_INNER, T_DATA_REF_LEAF, T_H2_EX_REF_INNER_END, T_H2_EX_REF_INNER_START, T_H2_EX_REF_LEAF_END, T_H2_EX_REF_LEAF_START, T_H2_REF_INNER, T_H2_REF_LEAF, T_META, T_METASTORE_INNER, T_METASTORE_LEAF, T_PAGE_LIST_META, T_PAGE_LIST_NODE, T_PAGE_UPDATE_TRACKING, T_PART_META, T_PENDING_REF_INNER, T_PENDING_REF_LEAF, TYPE_OFF, VER_OFF
Modifier | Constructor and Description |
---|---|
protected |
PagesListNodeIO(int ver) |
Modifier and Type | Method and Description |
---|---|
int |
addPage(long pageAddr,
long pageId,
int pageSize)
Adds page to the end of pages list.
|
int |
getCount(long pageAddr)
Gets total count of entries in this page.
|
long |
getNextId(long pageAddr) |
long |
getPreviousId(long pageAddr) |
void |
initNewPage(long pageAddr,
long pageId,
int pageSize) |
boolean |
isEmpty(long pageAddr) |
boolean |
removePage(long pageAddr,
long dataPageId)
Removes the given page ID from the pages list.
|
void |
setNextId(long pageAddr,
long nextId) |
void |
setPreviousId(long pageAddr,
long prevId) |
long |
takeAnyPage(long pageAddr)
Removes any page from the pages list.
|
getBPlusIO, getBPlusIO, getCrc, getCrc, getInnerVersions, getLeafVersions, getPageId, getPageId, getPageIO, getPageIO, getType, getType, getType, getVersion, getVersion, getVersion, registerH2, registerH2ExtraInner, registerH2ExtraLeaf, registerTest, setCrc, setCrc, setPageId, setType, toString
public static final IOVersions<PagesListNodeIO> VERSIONS
protected PagesListNodeIO(int ver)
ver
- Page format version.public void initNewPage(long pageAddr, long pageId, int pageSize)
initNewPage
in class PageIO
pageAddr
- Page address.pageId
- Page ID.pageSize
- Page size.public long getNextId(long pageAddr)
pageAddr
- Page address.public void setNextId(long pageAddr, long nextId)
pageAddr
- Page address.nextId
- Next page ID.public long getPreviousId(long pageAddr)
pageAddr
- Page address.public void setPreviousId(long pageAddr, long prevId)
pageAddr
- Page address.prevId
- Previous page ID.public int getCount(long pageAddr)
pageAddr
- Page address to get count from.public int addPage(long pageAddr, long pageId, int pageSize)
pageAddr
- Page address.pageId
- Page ID.pageSize
- Page size.public long takeAnyPage(long pageAddr)
pageAddr
- Page address.public boolean removePage(long pageAddr, long dataPageId)
pageAddr
- Page address.dataPageId
- Page ID to remove.true
if page was in the list and was removed, false
otherwise.public boolean isEmpty(long pageAddr)
pageAddr
- Page address.True
if there are no items in this page.
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