com.lucidera.lcs
Class LcsTable

java.lang.Object
  org.eigenbase.relopt.RelOptAbstractTable
      net.sf.farrago.namespace.impl.MedAbstractColumnSet
          com.lucidera.lcs.LcsTable

All Implemented Interfaces:

FarragoMedColumnSet, FarragoQueryColumnSet, RelOptTable, SqlValidatorTable

public class LcsTable
extends MedAbstractColumnSet

An implementation of RelOptTable for accessing data in a LucidDB column-store.

Version:

$Id: //open/dev/farrago/src/com/lucidera/lcs/LcsTable.java#15 $

Author:

John V. Sichi

Nested Class Summary

private static class

LcsTable.ClusterComparator Comparator that sorts clusters by cluster name.

Field Summary

private List<FemLocalIndex>	clusteredIndexes
private LcsIndexGuide	indexGuide Helper class to manipulate the cluster indexes.

Fields inherited from class org.eigenbase.relopt.RelOptAbstractTable

name, rowType, schema

Constructor Summary

LcsTable(String[] localName, RelDataType rowType, Properties tableProps, Map<String,Properties> columnPropMap)

Method Summary

List<FemLocalIndex>	getClusteredIndexes()
LcsIndexGuide	getIndexGuide()
RelNode	toRel(RelOptCluster cluster, RelOptConnection connection) Converts this table into a relational expression.

Methods inherited from class net.sf.farrago.namespace.impl.MedAbstractColumnSet

getAllowedAccess, getColumnPropertyMap, getCwmColumnSet, getForeignName, getLocalName, getMonotonicity, getPreparingStmt, getQualifiedName, getTableProperties, setAllowedAccess, setCwmColumnSet, setPreparingStmt, toLenientRel, toUdxRel

Methods inherited from class org.eigenbase.relopt.RelOptAbstractTable

getCollationList, getName, getRelOptSchema, getRowCount, getRowType, setRowType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eigenbase.relopt.RelOptTable

getCollationList, getRelOptSchema, getRowCount, getRowType

Methods inherited from interface org.eigenbase.sql.validate.SqlValidatorTable

getRowType

Field Detail

indexGuide

private LcsIndexGuide indexGuide

Helper class to manipulate the cluster indexes.

clusteredIndexes

private List<FemLocalIndex> clusteredIndexes

Constructor Detail

LcsTable

LcsTable(String[] localName,
         RelDataType rowType,
         Properties tableProps,
         Map<String,Properties> columnPropMap)

Method Detail

toRel

public RelNode toRel(RelOptCluster cluster,
                     RelOptConnection connection)

Description copied from interface: RelOptTable

Converts this table into a relational expression.

The planner calls this method to convert a table into an initial relational expression, generally something abstract, such as a TableAccessRel, then optimizes this expression by applying rules to transform it into more efficient access methods for this table.

Parameters:

cluster - the cluster the relational expression will belong to

connection - the parse tree of the expression which evaluates to a connection object

getIndexGuide

public LcsIndexGuide getIndexGuide()

getClusteredIndexes

public List<FemLocalIndex> getClusteredIndexes()