edu.ksu.cis.kdd.data
Class TableTally

java.lang.Object
  edu.ksu.cis.kdd.data.TableTally

All Implemented Interfaces:

Tally, WeightedTally

public class TableTally

extends java.lang.Object

implements WeightedTally

Tallying tuples. Contains cache. So, if you modify the tuples, it won't reflect the changes. You will have to reset the cache manually. OR you can always create a new Tally object.

Author:

Roby Joehanes

Field Summary

protected Attribute[]	attrs
protected java.util.HashSet	continuousValues
protected java.util.Set	indexableAttr
protected java.util.Hashtable	indexCache
protected java.util.Set[]	indexedValues
protected int[]	local2globalIndex
protected boolean	needIndexing
protected DatabaseTally	owner
protected Table	table
protected int	tallyID
protected int	tupleCount
protected java.util.Hashtable	valueCache

Method Summary

Tally	createSubTally(int[] indices, int[] values) Create a new tally that basically filtered according to the spec mentioned in the q table (i.e. the query table).
Tally	createSubTally(int idx, int value) Create subtally that has val[nodeindex] = value.
void	filter(int idx, java.util.Set values) Pretty much like createSubTally, except that it doesn't create a new Tally object and apply the filter to this object.
int	getArity(int i) Get the values of a particular atribute name
int	getArity(java.lang.String attr) Get the values of a particular atribute name
DatabaseTally	getOwner()
int[]	getRelevantAttributeIndices()
int	getTallyID()
Data	getUnderlyingData()
int	getValueIndex(java.lang.String attr, java.lang.String value)
java.util.List	groupedTally(int[] indices)
protected java.util.List	groupedTally(int[] indices, int[] values, int depth, java.util.List valueList)
void	resetCache()
void	setOwner(DatabaseTally tally)
void	setUnderlyingData(Data tuples) Sets the tuples.
int	size()
int	tally(int[] indices, int[] values) Count the number of tuples that is compliant to the spec mentioned in the q table (i.e. the query table).
int	tally(int idx, int value) Count the number of tuples that has val[nodeindex] = value.
double	weightedTally() Count total weights of the tuples
double	weightedTally(int idx, int value) Count the weights of tuples that has val[nodeindex] = value.

Methods inherited from class java.lang.Object

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

Field Detail

table

protected Table table

valueCache

protected java.util.Hashtable valueCache

indexCache

protected java.util.Hashtable indexCache

continuousValues

protected java.util.HashSet continuousValues

tupleCount

protected int tupleCount

attrs

protected Attribute[] attrs

tallyID

protected int tallyID

owner

protected DatabaseTally owner

local2globalIndex

protected int[] local2globalIndex

indexableAttr

protected java.util.Set indexableAttr

indexedValues

protected java.util.Set[] indexedValues

needIndexing

protected boolean needIndexing

Method Detail

getTallyID

public int getTallyID()

resetCache

public void resetCache()

tally

public int tally(int[] indices,
                 int[] values)

Count the number of tuples that is compliant to the spec mentioned in the q table (i.e. the query table).

If you only have one entry in q table, better use tally(int, int).

Specified by:

tally in interface Tally

Parameters:

indices - is the array of index

values - is the array of values of that index

Returns:

int the count.

tally

public int tally(int idx,
                 int value)

Count the number of tuples that has val[nodeindex] = value.

Specified by:

tally in interface Tally

Parameters:

idx - Node index

value - Node value

Returns:

int The count

weightedTally

public double weightedTally(int idx,
                            int value)

Count the weights of tuples that has val[nodeindex] = value.

Specified by:

weightedTally in interface WeightedTally

Parameters:

idx - Node index

value - Node value

Returns:

double The count

weightedTally

public double weightedTally()

Count total weights of the tuples

Specified by:

weightedTally in interface WeightedTally

createSubTally

public Tally createSubTally(int[] indices,
                            int[] values)

Create a new tally that basically filtered according to the spec mentioned in the q table (i.e. the query table).

If you only have one entry in q table, better use createSubTally(int, int).

Specified by:

createSubTally in interface Tally

Parameters:

indices - is the array of index

values - is the array of values of that index

Returns:

Tally the sub tally

createSubTally

public Tally createSubTally(int idx,
                            int value)

Create subtally that has val[nodeindex] = value.

Specified by:

createSubTally in interface Tally

Parameters:

idx - Node index

value - Node value

Returns:

Tally the sub tally.

filter

public void filter(int idx,
                   java.util.Set values)

Pretty much like createSubTally, except that it doesn't create a new Tally object and apply the filter to this object.

Parameters:

idx -

values -

getValueIndex

public int getValueIndex(java.lang.String attr,
                         java.lang.String value)

getArity

public int getArity(java.lang.String attr)

Get the values of a particular atribute name

Parameters:

attr -

Returns:

Set

getArity

public int getArity(int i)

Get the values of a particular atribute name

getUnderlyingData

public Data getUnderlyingData()

Specified by:

getUnderlyingData in interface Tally

Returns:

Table

setUnderlyingData

public void setUnderlyingData(Data tuples)

Sets the tuples.

Specified by:

setUnderlyingData in interface Tally

Parameters:

tuples - The tuples to set

size

public int size()

Specified by:

size in interface Tally

Returns:

int

getOwner

public DatabaseTally getOwner()

Returns:

setOwner

public void setOwner(DatabaseTally tally)

Parameters:

tally -

getRelevantAttributeIndices

public int[] getRelevantAttributeIndices()

Specified by:

getRelevantAttributeIndices in interface Tally

groupedTally

public java.util.List groupedTally(int[] indices)

Specified by:

groupedTally in interface Tally

See Also:

edu.ksu.cis.kdd.data.TallyInterface#groupedTally(int[])

groupedTally

protected java.util.List groupedTally(int[] indices,
                                      int[] values,
                                      int depth,
                                      java.util.List valueList)