org.basex.data
Class Namespaces

java.lang.Object
  org.basex.util.Set
      org.basex.data.Namespaces

public final class Namespaces
extends Set

This class organizes the namespaces of a database.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Christian Gruen

Constructor Summary

Namespaces()
Default constructor.

Namespaces(DataInput in)
Constructor, specifying an input stream.

Method Summary

int	add(byte[] p, byte[] u) Adds the specified namespace.
void	close(int p) Closes a node.
int	get(byte[] n) Returns the namespace offset for the specified qname.
int	get(byte[] n, int p) Returns the namespace for the specified name and pre value.
int[]	get(int p) Returns the namespace keys and values for the specified pre value.
byte[]	info() Prints some namespace info.
void	info(Map<TokenList> map, org.basex.data.NSNode n) Prints some namespace info.
boolean	open(int p) Opens a node.
void	print(PrintOutput out, int s, boolean all) Prints the namespace structure to the specified output stream.
void	write(DataOutput out) Writes the namespaces to disk.

Methods inherited from class org.basex.util.Set

add, delete, id, key, keys, size

Methods inherited from class java.lang.Object

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

Constructor Detail

Namespaces

public Namespaces()

Default constructor.

Namespaces

public Namespaces(DataInput in)
           throws java.io.IOException

Constructor, specifying an input stream.

Parameters:

in - input stream

Throws:

java.io.IOException - I/O exception

Method Detail

add

public int add(byte[] p,
               byte[] u)

Adds the specified namespace.

Parameters:

p - namespace prefix

u - namespace uri

Returns:

value id

open

public boolean open(int p)

Opens a node.

Parameters:

p - current pre value

Returns:

true if new namespaces have been added

get

public int get(byte[] n)

Returns the namespace offset for the specified qname.

Parameters:

n - tag/attribute name

Returns:

namespace

write

public void write(DataOutput out)
           throws java.io.IOException

Writes the namespaces to disk.

Parameters:

out - output stream

Throws:

java.io.IOException - I/O exception

close

public void close(int p)

Closes a node.

Parameters:

p - current pre value

get

public int get(byte[] n,
               int p)

Returns the namespace for the specified name and pre value.

Parameters:

n - tag/attribute name

p - pre value

Returns:

namespace reference or 0 if no namespace was found

get

public int[] get(int p)

Returns the namespace keys and values for the specified pre value.

Parameters:

p - pre value

Returns:

namespace reference or 0 if no namespace was found

print

public void print(PrintOutput out,
                  int s,
                  boolean all)
           throws java.io.IOException

Prints the namespace structure to the specified output stream.

Parameters:

out - output stream

s - space for pre value

all - print all namespaces or just the root entries

Throws:

java.io.IOException - I/O exception

info

public byte[] info()

Prints some namespace info.

Returns:

statistics string

info

public void info(Map<TokenList> map,
                 org.basex.data.NSNode n)

Prints some namespace info.

Parameters:

map - namespace map

n - namespace node