Fennel: LcsClusterAccessBase Class Reference (original) (raw)
LcsClusterAccessBase is a base for classes which access cluster pages. More...
#include <[LcsClusterAccessBase.h](LcsClusterAccessBase%5F8h-source.html)>
Inheritance diagram for LcsClusterAccessBase:
| Public Member Functions | |
|---|---|
| LcsClusterAccessBase (BTreeDescriptor const &treeDescriptor) | |
| uint | getNumClusterCols () |
| Returns number of columns in cluster. | |
| void | setNumClusterCols (uint nCols) |
| Sets number of columns in cluster. | |
| void | unlockClusterPage () |
| Unlocks cluster page. | |
| Protected Member Functions | |
| LcsRid | readRid () |
| Returns RID from btree tuple. | |
| PageId | readClusterPageId () |
| Returns cluster pageid from btree tuple. | |
| void | setHdrOffsets (PConstLcsClusterNode pHdr) |
| Sets pointers to offset arrays in cluster page header. | |
| Protected Attributes | |
| TupleData | bTreeTupleData |
| Tuple data representing the btree key corresponding to the cluster page. | |
| SegmentAccessor | segmentAccessor |
| Accessor for segment storing both btree and cluster pages. | |
| ClusterPageLock | clusterLock |
| Buffer lock for the actual cluster node pages. | |
| PageId | clusterPageId |
| Current cluster pageid. | |
| LcsRid | bTreeRid |
| Current rid in btree used to access current cluster page. | |
| uint | nClusterCols |
| Number of columns in cluster. | |
| uint16_t * | lastVal |
| Offsets to the last value stored on the page for each column in cluster. | |
| uint16_t * | firstVal |
| Offsets to the first value stored on the page for each column in cluster. | |
| uint * | nVal |
| Number of distinct values in the page for each column in cluster. | |
| uint16_t * | delta |
| For each column in the cluster, offset used to get the real offset within the page. |
Detailed Description
LcsClusterAccessBase is a base for classes which access cluster pages.
Definition at line 34 of file LcsClusterAccessBase.h.
Constructor & Destructor Documentation
| LcsClusterAccessBase::LcsClusterAccessBase | ( | BTreeDescriptor const & | treeDescriptor | ) | [explicit] |
|---|
Member Function Documentation
| LcsRid LcsClusterAccessBase::readRid | ( | | ) | [protected] | | ------------------------------------ | - | | - | ------------- |
| PageId LcsClusterAccessBase::readClusterPageId | ( | | ) | [protected] | | ---------------------------------------------- | - | | - | ------------- |
| uint LcsClusterAccessBase::getNumClusterCols | ( | | ) | [inline] | | --------------------------------------------------------------------------------------------------------- | - | | - | ---------- |
| void LcsClusterAccessBase::setNumClusterCols | ( | uint | nCols | ) | [inline] |
|---|
| void LcsClusterAccessBase::unlockClusterPage | ( | | ) | | -------------------------------------------- | - | | - |
Member Data Documentation
Number of columns in cluster.
Definition at line 68 of file LcsClusterAccessBase.h.
Referenced by LcsClusterNodeWriter::addValue(), LcsClusterNodeWriter::allocArrays(), LcsClusterDump::dump(), LcsClusterReader::getNumRows(), LcsClusterNodeWriter::init(), LcsClusterReader::initColumnReaders(), LcsClusterNodeWriter::LcsClusterNodeWriter(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), LcsClusterNodeWriter::openAppend(), LcsClusterNodeWriter::openNew(), LcsClusterReader::positionInBlock(), and setHdrOffsets().
Offsets to the last value stored on the page for each column in cluster.
Definition at line 74 of file LcsClusterAccessBase.h.
Referenced by LcsClusterNodeWriter::addValue(), LcsClusterDump::dump(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), LcsClusterNodeWriter::openAppend(), LcsClusterNodeWriter::openNew(), LcsClusterNodeWriter::pickCompressionMode(), LcsClusterNodeWriter::putCompressedBatch(), LcsClusterNodeWriter::putFixedVarBatch(), LcsClusterNodeWriter::rollBackLastBatch(), setHdrOffsets(), and LcsClusterNodeWriter::undoValue().
Number of distinct values in the page for each column in cluster.
Definition at line 87 of file LcsClusterAccessBase.h.
Referenced by LcsClusterNodeWriter::addValue(), LcsClusterDump::dump(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), LcsClusterNodeWriter::openAppend(), LcsClusterNodeWriter::openNew(), LcsClusterNodeWriter::pickCompressionMode(), LcsClusterNodeWriter::putCompressedBatch(), LcsClusterNodeWriter::putFixedVarBatch(), LcsClusterNodeWriter::rollBackLastBatch(), setHdrOffsets(), and LcsClusterNodeWriter::undoValue().
The documentation for this class was generated from the following files:
- /home/pub/open/dev/fennel/lucidera/colstore/LcsClusterAccessBase.h
- /home/pub/open/dev/fennel/lucidera/colstore/LcsClusterAccessBase.cpp
Generated on Mon Jun 22 04:00:36 2009 for Fennel by 
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