Package mondrian.rolap.aggmatcher

Class AggStar.Table

java.lang.Object

mondrian.rolap.aggmatcher.AggStar.Table

Direct Known Subclasses:

AggStar.DimTable, AggStar.FactTable

Enclosing class:

AggStar

public abstract class AggStar.Table
extends Object

Base Table class for the FactTable and DimTable classes. This class parallels the RolapStar.Table class.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	AggStar.Table.Column	Base class for Level and Measure classes
class	AggStar.Table.JoinCondition	The query join condition between a base table and this table (the table that owns the join condition).
class	AggStar.Table.Level	This class is used for holding dimension level information.

Field Summary

Fields

Modifier and Type	Field	Description
protected List<AggStar.DimTable>	children
protected List<AggStar.Table.Level>	levels

Method Summary

Modifier and Type	Method	Description
protected void	addLevel(AggStar.Table.Level level)	Add a Level column.
protected void	addTable(AggStar.DimTable child)	Add a child DimTable table.
void	addToFrom(SqlQuery query, boolean failIfExists, boolean joinToParent)	This is a copy of the code found in RolapStar used to generate an SQL query.
protected void	convertChildren(RolapStar.Table rTable)	Convert the child tables of a RolapStar.Table into child AggStar.DimTable tables.
protected void	convertColumns(RolapStar.Table rTable)	Convert a RolapStar.Table table's columns into AggStar.Table.Level columns.
protected AggStar.DimTable	convertTable(RolapStar.Table rTable, JdbcSchema.Table.Column.Usage usage)	Converts a RolapStar.Table into a AggStar.DimTable as well as converting all columns and child tables.
AggStar.Table	findDescendant(String name)	Find descendant of fact table with given name or return null.
protected AggStar	getAggStar()	Get this table's enclosing AggStar.
List<AggStar.DimTable>	getChildTables()	Returns a list of child AggStar.Table objects.
abstract AggStar.Table.JoinCondition	getJoinCondition()
List<AggStar.Table.Level>	getLevels()	Returns all level columns.
String	getName()	Return the name of the table in the database.
abstract AggStar.Table	getParent()	Get the parent table (returns null if this table is a FactTable).
MondrianDef.Relation	getRelation()
protected SqlQuery	getSqlQuery()	Get a SqlQuery object.
boolean	hasChildren()	Return true if this table has one or more child tables.
abstract boolean	hasJoinCondition()	Return true if this table has a join condition (only DimTables have join conditions, FactTable instances do not).
boolean	hasLevels()	Return true if table has levels.
abstract boolean	hasParent()	Return true if this table has a parent table (FactTable instances do not have parent tables, all other do).
abstract void	print(PrintWriter pw, String prefix)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

levels

protected final List<AggStar.Table.Level> levels

children

protected List<AggStar.DimTable> children

Method Detail

getName

public String getName()

Return the name of the table in the database.

hasParent

public abstract boolean hasParent()

Return true if this table has a parent table (FactTable instances do not have parent tables, all other do).

getParent

public abstract AggStar.Table getParent()

Get the parent table (returns null if this table is a FactTable).

hasJoinCondition

public abstract boolean hasJoinCondition()

Return true if this table has a join condition (only DimTables have join conditions, FactTable instances do not).

getJoinCondition

public abstract AggStar.Table.JoinCondition getJoinCondition()

getRelation

public MondrianDef.Relation getRelation()

getAggStar

protected AggStar getAggStar()

Get this table's enclosing AggStar.

getSqlQuery

protected SqlQuery getSqlQuery()

Get a SqlQuery object.

addLevel

protected void addLevel(AggStar.Table.Level level)

Add a Level column.

getLevels

public List<AggStar.Table.Level> getLevels()

Returns all level columns.

hasLevels

public boolean hasLevels()

Return true if table has levels.

addTable

protected void addTable(AggStar.DimTable child)

Add a child DimTable table.

getChildTables

public List<AggStar.DimTable> getChildTables()

Returns a list of child AggStar.Table objects.

findDescendant

public AggStar.Table findDescendant(String name)

Find descendant of fact table with given name or return null.

Parameters:

name - the child table name (alias).

Returns:

the child table or null.

hasChildren

public boolean hasChildren()

Return true if this table has one or more child tables.

convertTable

protected AggStar.DimTable convertTable(RolapStar.Table rTable,
                                        JdbcSchema.Table.Column.Usage usage)

Converts a RolapStar.Table into a AggStar.DimTable as well as converting all columns and child tables. If the rightJoinConditionColumnName parameter is null, then the table's namd and the rTable parameter's condition left condition's column name are used to form the join condition's left expression.

convertColumns

protected void convertColumns(RolapStar.Table rTable)

Convert a RolapStar.Table table's columns into AggStar.Table.Level columns.

convertChildren

protected void convertChildren(RolapStar.Table rTable)

Convert the child tables of a RolapStar.Table into child AggStar.DimTable tables.

addToFrom

public void addToFrom(SqlQuery query,
                      boolean failIfExists,
                      boolean joinToParent)

This is a copy of the code found in RolapStar used to generate an SQL query.

toString

public String toString()

Overrides:

toString in class Object

print

public abstract void print(PrintWriter pw,
                           String prefix)