org.basex.index
Class Names

java.lang.Object
  org.basex.util.TokenSet
      org.basex.index.Names

public final class Names
extends TokenSet

This class indexes and organizes the tags or attribute names, used in an XML document.

Author:

Workgroup DBIS, University of Konstanz 2005-10, ISC License, Christian Gruen, Lukas Kircher

Field Summary

int	tn total number of entries.

Constructor Summary

Names()
Default constructor.

Names(DataInput in)
Constructor, specifying an input file.

Method Summary

int	index(byte[] k, byte[] v, boolean st) Indexes a name and returns its unique id.
void	index(int i, byte[] v) Evaluates the value for the specified key id.
byte[]	info() Returns index information.
void	init() Initializes the statistics.
StatsKey	stat(int id) Returns the statistics for the specified key id.
void	write(DataOutput out) Writes the token set to the specified output.

Methods inherited from class org.basex.util.TokenSet

add, delete, id, key, keys, read, size

Methods inherited from class java.lang.Object

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

Field Detail

tn

public int tn

total number of entries.

Constructor Detail

Names

public Names()

Default constructor.

Names

public Names(DataInput in)
      throws IOException

Constructor, specifying an input file.

Parameters:

in - input stream

Throws:

IOException - I/O exception

Method Detail

init

public void init()

Initializes the statistics.

index

public int index(byte[] k,
                 byte[] v,
                 boolean st)

Indexes a name and returns its unique id.

Parameters:

k - name to be found

v - value, evaluated in statistics

st - statistics flag

Returns:

name id

index

public void index(int i,
                  byte[] v)

Evaluates the value for the specified key id.

Parameters:

i - key id

v - value, used for statistics

write

public void write(DataOutput out)
           throws IOException

Description copied from class: TokenSet

Writes the token set to the specified output.

Overrides:

write in class TokenSet

Parameters:

out - output stream

Throws:

IOException - I/O exception

stat

public StatsKey stat(int id)

Returns the statistics for the specified key id.

Parameters:

id - id

Returns:

statistics

info

public byte[] info()

Returns index information.

Returns:

statistics string