ch.ethz.mxquery.opt.index
Interface Index

All Known Implementing Classes:

IndexImpl

public interface Index

Method Summary

void	clear()
void	compileIndex()
int	get() Returns the min value
int	get(int i) Returns the value at position
int[]	getAll()
int	getAndRemove() Returns the min value and removes it
int	getAndRemove(int i)
int[]	getAndRemoveAll()
java.util.Vector	getGroups(IndexSchema schema)
java.util.Vector	getValues(IndexSchema schema)
void	index(IndexSchema index, Token[][] indexValues, int value) Like a simple value index but for general comparisons
void	index(IndexSchema index, Token[] indexValues, int value)
void	index(int value) Indexes the value without indexValues :-)
boolean	registerIndex(IndexSchema index) Registered a new Index.
void	remove(int value) Returns the first value
IntegerList	retreive(IndexSchema index, Token[] indexValues)
IntegerList	retreive(IndexSchema index, Token[][] indexValues) Like a simple value index but for general comparisons
IntegerList	retreiveAndRemove(IndexSchema index, Token[] indexValues)
IntegerList	retreiveAndRemove(IndexSchema index, Token[][] indexValues)
int	size() Gets the number of elements in the index

Method Detail

registerIndex

boolean registerIndex(IndexSchema index)

Registered a new Index.

Parameters:

index - the index schema

Returns:

If the Regestration was successfull

compileIndex

void compileIndex()

index

void index(int value)

Indexes the value without indexValues :-)

Parameters:

value - >= 0

index

void index(IndexSchema index,
           Token[] indexValues,
           int value)

Parameters:

index -

indexValues -

value - >= 0

index

void index(IndexSchema index,
           Token[][] indexValues,
           int value)

Like a simple value index but for general comparisons

Parameters:

index -

indexValues -

value - >= 0

retreive

IntegerList retreive(IndexSchema index,
                     Token[] indexValues)
                     throws MXQueryException

Parameters:

index -

indexValues -

Returns:

Returns -1 if no window is found

Throws:

MXQueryException

retreiveAndRemove

IntegerList retreiveAndRemove(IndexSchema index,
                              Token[] indexValues)
                              throws MXQueryException

Throws:

MXQueryException

retreive

IntegerList retreive(IndexSchema index,
                     Token[][] indexValues)
                     throws MXQueryException

Like a simple value index but for general comparisons

Parameters:

index -

indexValues -

Returns:

the list of matches, -1 if not found

Throws:

MXQueryException

retreiveAndRemove

IntegerList retreiveAndRemove(IndexSchema index,
                              Token[][] indexValues)
                              throws MXQueryException

Throws:

MXQueryException

getAll

int[] getAll()

getAndRemoveAll

int[] getAndRemoveAll()

get

int get()

Returns the min value

Returns:

the minimal value

get

int get(int i)

Returns the value at position

Parameters:

i -

Returns:

the value at i

getAndRemove

int getAndRemove(int i)

remove

void remove(int value)

Returns the first value

Parameters:

value -

getAndRemove

int getAndRemove()

Returns the min value and removes it

Returns:

the value

size

int size()

Gets the number of elements in the index

Returns:

the number of elements

clear

void clear()

getGroups

java.util.Vector getGroups(IndexSchema schema)

getValues

java.util.Vector getValues(IndexSchema schema)