ch.ethz.mxquery.opt.index
Class IndexImpl

java.lang.Object
  ch.ethz.mxquery.opt.index.IndexImpl

All Implemented Interfaces:

Index, java.lang.Cloneable

public class IndexImpl
extends java.lang.Object
implements Index, java.lang.Cloneable

Constructor Summary

IndexImpl()

Method Summary

void	clear()
void	compileIndex()
void	eqIndex(IndexSchema index, Token[] values, int windowId)
IntegerList	eqIndexRetreiveAndRemove(IndexSchema index, Token[] values)
IntegerList	eqIndexRetrieve(IndexSchema index, Token[] values)
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[] values, int windowId)
void	index(int value) Indexes the value without indexValues :-)
void	neqIndex(IndexSchema index, Token[] values, int windowId)
IntegerList	neqIndexRetreiveAndRemove(IndexSchema index, Token[] values)
IntegerList	neqIndexRetrieve(IndexSchema index, Token[] values)
boolean	registerIndex(IndexSchema index) Registered a new Index.
void	remove()
void	remove(int value) Returns the first value
IntegerList	retreive(IndexSchema index, Token[] values)
IntegerList	retreive(IndexSchema index, Token[][] indexValues) Like a simple value index but for general comparisons
IntegerList	retreiveAndRemove(IndexSchema index, Token[] values)
IntegerList	retreiveAndRemove(IndexSchema index, Token[][] indexValues)
int	size() Gets the number of elements in the index

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexImpl

public IndexImpl()

Method Detail

registerIndex

public boolean registerIndex(IndexSchema index)

Description copied from interface: Index

Registered a new Index.

Specified by:

registerIndex in interface Index

Parameters:

index - the index schema

Returns:

If the Regestration was successfull

index

public void index(int value)

Description copied from interface: Index

Indexes the value without indexValues :-)

Specified by:

index in interface Index

Parameters:

value - >= 0

remove

public void remove()

getAndRemove

public int getAndRemove()

Description copied from interface: Index

Returns the min value and removes it

Specified by:

getAndRemove in interface Index

Returns:

the value

get

public int get()

Description copied from interface: Index

Returns the min value

Specified by:

get in interface Index

Returns:

the minimal value

remove

public void remove(int value)

Description copied from interface: Index

Returns the first value

Specified by:

remove in interface Index

index

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

Description copied from interface: Index

Like a simple value index but for general comparisons

Specified by:

index in interface Index

value - >= 0

index

public void index(IndexSchema index,
                  Token[] values,
                  int windowId)

Specified by:

index in interface Index

windowId - >= 0

eqIndex

public void eqIndex(IndexSchema index,
                    Token[] values,
                    int windowId)

neqIndex

public void neqIndex(IndexSchema index,
                     Token[] values,
                     int windowId)

eqIndexRetrieve

public IntegerList eqIndexRetrieve(IndexSchema index,
                                   Token[] values)

neqIndexRetrieve

public IntegerList neqIndexRetrieve(IndexSchema index,
                                    Token[] values)

retreive

public IntegerList retreive(IndexSchema index,
                            Token[] values)

Specified by:

retreive in interface Index

Returns:

Returns -1 if no window is found

eqIndexRetreiveAndRemove

public IntegerList eqIndexRetreiveAndRemove(IndexSchema index,
                                            Token[] values)

neqIndexRetreiveAndRemove

public IntegerList neqIndexRetreiveAndRemove(IndexSchema index,
                                             Token[] values)

retreiveAndRemove

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

Specified by:

retreiveAndRemove in interface Index

Throws:

MXQueryException

retreiveAndRemove

public IntegerList retreiveAndRemove(IndexSchema index,
                                     Token[] values)

Specified by:

retreiveAndRemove in interface Index

size

public int size()

Description copied from interface: Index

Gets the number of elements in the index

Specified by:

size in interface Index

Returns:

the number of elements

retreive

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

Description copied from interface: Index

Like a simple value index but for general comparisons

Specified by:

retreive in interface Index

Returns:

the list of matches, -1 if not found

Throws:

MXQueryException

get

public int get(int i)

Description copied from interface: Index

Returns the value at position

Specified by:

get in interface Index

Returns:

the value at i

compileIndex

public void compileIndex()

Specified by:

compileIndex in interface Index

getAll

public int[] getAll()

Specified by:

getAll in interface Index

getAndRemove

public int getAndRemove(int i)

Specified by:

getAndRemove in interface Index

getAndRemoveAll

public int[] getAndRemoveAll()

Specified by:

getAndRemoveAll in interface Index

clear

public void clear()

Specified by:

clear in interface Index

getGroups

public java.util.Vector getGroups(IndexSchema schema)

Specified by:

getGroups in interface Index

getValues

public java.util.Vector getValues(IndexSchema schema)

Specified by:

getValues in interface Index