public class TrackingPageIO extends PageIO
Modifier and Type | Field and Description |
---|---|
static int |
BITMAP_OFFSET
Bitmap offset.
|
static int |
COUNT_OF_EXTRA_PAGE
Count of extra page.
|
static int |
LAST_SNAPSHOT_TAG_OFFSET
Last snapshot offset.
|
static int |
SIZE_FIELD_OFFSET
Size field offset.
|
static int |
SIZE_FIELD_SIZE
'Size' field size.
|
static IOVersions<TrackingPageIO> |
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 |
TrackingPageIO(int ver) |
Modifier and Type | Method and Description |
---|---|
short |
countOfChangedPage(ByteBuffer buf,
long snapshotTag,
int pageSize) |
int |
countOfPageToTrack(int pageSize) |
Long |
findNextChangedPage(ByteBuffer buf,
long start,
long curSnapshotTag,
long lastSuccessfulSnapshotTag,
int pageSize) |
boolean |
markChanged(ByteBuffer buf,
long pageId,
long nextSnapshotTag,
long lastSuccessfulSnapshotTag,
int pageSize)
Will mark pageId as changed for next (!)
|
long |
trackingPageFor(long pageId,
int pageSize) |
boolean |
wasChanged(ByteBuffer buf,
long pageId,
long curSnapshotTag,
long lastSuccessfulSnapshotTag,
int pageSize)
Check that pageId was marked as changed between previous snapshot finish and current snapshot start.
|
getBPlusIO, getBPlusIO, getCrc, getCrc, getInnerVersions, getLeafVersions, getPageId, getPageId, getPageIO, getPageIO, getType, getType, getType, getVersion, getVersion, getVersion, initNewPage, registerH2, registerH2ExtraInner, registerH2ExtraLeaf, registerTest, setCrc, setCrc, setPageId, setType, toString
public static final IOVersions<TrackingPageIO> VERSIONS
public static final int LAST_SNAPSHOT_TAG_OFFSET
public static final int SIZE_FIELD_OFFSET
public static final int SIZE_FIELD_SIZE
public static final int BITMAP_OFFSET
public static final int COUNT_OF_EXTRA_PAGE
protected TrackingPageIO(int ver)
ver
- Page format version.public boolean markChanged(ByteBuffer buf, long pageId, long nextSnapshotTag, long lastSuccessfulSnapshotTag, int pageSize)
buf
- Buffer.pageId
- Page id.nextSnapshotTag
- tag of next snapshot.pageSize
- Page size.public boolean wasChanged(ByteBuffer buf, long pageId, long curSnapshotTag, long lastSuccessfulSnapshotTag, int pageSize)
buf
- Buffer.pageId
- Page id.curSnapshotTag
- Snapshot tag.pageSize
- Page size.public short countOfChangedPage(ByteBuffer buf, long snapshotTag, int pageSize)
buf
- Buffer.snapshotTag
- Snapshot tag.pageSize
- Page size.public long trackingPageFor(long pageId, int pageSize)
pageId
- Page id.pageSize
- Page size.public int countOfPageToTrack(int pageSize)
pageSize
- Page size.public Long findNextChangedPage(ByteBuffer buf, long start, long curSnapshotTag, long lastSuccessfulSnapshotTag, int pageSize)
buf
- Buffer.start
- Start.curSnapshotTag
- Snapshot id.pageSize
- Page size.
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