org.basex.query.xquery.item
Class DNode

java.lang.Object
  org.basex.query.xquery.expr.Expr
      org.basex.query.xquery.item.Item
          org.basex.query.xquery.item.Node
              org.basex.query.xquery.item.DNode

public final class DNode
extends Node

Disk-based Node item.

Author:

Workgroup DBIS, University of Konstanz 2005-07, ISC License, Christian Gruen

Field Summary

Data	data Data reference.
int	pre Pre value.
Node	root Root node (constructor).

Fields inherited from class org.basex.query.xquery.expr.Expr

type

Constructor Summary

DNode(Data d, int p, Node r, Type t)
Constructor.

Method Summary

NodeIter	anc() Returns an ancestor axis iterator.
NodeIter	ancOrSelf() Returns an ancestor-or-self axis iterator.
NodeIter	attr() Returns an attribute axis iterator.
byte[]	base() Returns the database name.
NodeMore	child() Returns a child axis iterator.
DNode	copy() Creates a new copy (clone) of the node.
NodeIter	desc() Returns a descendant axis iterator.
NodeIter	descOrSelf() Returns a descendant-or-self axis iterator.
int	diff(Node nod) Compares two nodes for their unique order.
DNode	finish() Returns a final node representation.
NodeIter	foll() Returns a following axis iterator.
NodeIter	follSibl() Returns a following-sibling axis iterator.
boolean	is(Node nod) Compares two nodes for equality.
byte[]	name() Returns the node name.
NodeIter	par() Returns a parent axis iterator.
Node	parent() Returns the parent node.
void	parent(Node p) Sets the parent node.
NodeIter	prec() Returns a preceding axis iterator.
NodeIter	precSibl() Returns a preceding-sibling axis iterator.
QNm	qname() Returns the node name.
NodeIter	self() Returns an self axis iterator.
void	serElem(PrintOutput out, XQContext ctx, int pos, int level) Serializes the specified node, starting from the specified pre value.
void	serElem(ResultReader rr, XQContext ctx, int pos, int level) Serializes the specified node, starting from the specified pre value.
void	serialize(PrintOutput out, XQContext ctx, int level) Serializes the item.
void	serialize(ResultReader rr, XQContext ctx, int level) Serializes the item.
byte[]	str() Returns an atomized string.
java.lang.String	toString()

Methods inherited from class org.basex.query.xquery.item.Node

bool, dbl, diff, eq, flt, itr, node, ns, u

Methods inherited from class org.basex.query.xquery.item.Item

castErr, comp, eval, i, info, iter, size

Methods inherited from class org.basex.query.xquery.expr.Expr

cls, d, e, n, s

Methods inherited from class java.lang.Object

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

Field Detail

data

public Data data

Data reference.

pre

public int pre

Pre value.

root

public Node root

Root node (constructor).

Constructor Detail

DNode

public DNode(Data d,
             int p,
             Node r,
             Type t)

Constructor.

Parameters:

d - data reference

p - pre value

r - parent reference

t - node type

Method Detail

anc

public NodeIter anc()

Description copied from class: Node

Returns an ancestor axis iterator.

Specified by:

anc in class Node

Returns:

iterator

ancOrSelf

public NodeIter ancOrSelf()

Description copied from class: Node

Returns an ancestor-or-self axis iterator.

Specified by:

ancOrSelf in class Node

Returns:

iterator

attr

public NodeIter attr()

Description copied from class: Node

Returns an attribute axis iterator.

Specified by:

attr in class Node

Returns:

iterator

base

public byte[] base()

Description copied from class: Node

Returns the database name.

Overrides:

base in class Node

Returns:

database name

child

public NodeMore child()

Description copied from class: Node

Returns a child axis iterator.

Specified by:

child in class Node

Returns:

iterator

copy

public DNode copy()

Description copied from class: Node

Creates a new copy (clone) of the node.

Specified by:

copy in class Node

Returns:

new copy

desc

public NodeIter desc()

Description copied from class: Node

Returns a descendant axis iterator.

Specified by:

desc in class Node

Returns:

iterator

descOrSelf

public NodeIter descOrSelf()

Description copied from class: Node

Returns a descendant-or-self axis iterator.

Specified by:

descOrSelf in class Node

Returns:

iterator

diff

public int diff(Node nod)

Description copied from class: Node

Compares two nodes for their unique order.

Overrides:

diff in class Node

Parameters:

nod - node to be compared

Returns:

result of check

finish

public DNode finish()

Description copied from class: Node

Returns a final node representation.

Overrides:

finish in class Node

Returns:

node

foll

public NodeIter foll()

Description copied from class: Node

Returns a following axis iterator.

Specified by:

foll in class Node

Returns:

iterator

follSibl

public NodeIter follSibl()

Description copied from class: Node

Returns a following-sibling axis iterator.

Specified by:

follSibl in class Node

Returns:

iterator

is

public boolean is(Node nod)

Description copied from class: Node

Compares two nodes for equality.

Overrides:

is in class Node

Parameters:

nod - node to be compared

Returns:

result of check

name

public byte[] name()

Description copied from class: Node

Returns the node name.

Overrides:

name in class Node

Returns:

name

par

public NodeIter par()

Description copied from class: Node

Returns a parent axis iterator.

Specified by:

par in class Node

Returns:

iterator

parent

public Node parent()

Description copied from class: Node

Returns the parent node.

Overrides:

parent in class Node

Returns:

parent node

parent

public void parent(Node p)

Description copied from class: Node

Sets the parent node.

Overrides:

parent in class Node

Parameters:

p - parent node

prec

public NodeIter prec()

Description copied from class: Node

Returns a preceding axis iterator.

Specified by:

prec in class Node

Returns:

iterator

precSibl

public NodeIter precSibl()

Description copied from class: Node

Returns a preceding-sibling axis iterator.

Specified by:

precSibl in class Node

Returns:

iterator

qname

public QNm qname()

Description copied from class: Node

Returns the node name.

Overrides:

qname in class Node

Returns:

name

self

public NodeIter self()

Description copied from class: Node

Returns an self axis iterator.

Specified by:

self in class Node

Returns:

iterator

serElem

public void serElem(PrintOutput out,
                    XQContext ctx,
                    int pos,
                    int level)
             throws java.io.IOException,
                    XQException

Serializes the specified node, starting from the specified pre value.

Parameters:

out - output stream

ctx - xquery context

pos - pre value

level - current level

Throws:

java.io.IOException - I/O exception

XQException - evaluation exception

serElem

public void serElem(ResultReader rr,
                    XQContext ctx,
                    int pos,
                    int level)
             throws org.xml.sax.SAXException

Serializes the specified node, starting from the specified pre value.

Parameters:

rr - result reader

ctx - xquery context

pos - pre value

level - current level

Throws:

org.xml.sax.SAXException - SAX exception

serialize

public void serialize(PrintOutput out,
                      XQContext ctx,
                      int level)
               throws java.io.IOException,
                      XQException

Description copied from class: Item

Serializes the item.

Overrides:

serialize in class Item

Parameters:

out - output stream

ctx - query context

level - current level

Throws:

java.io.IOException - I/O exception

XQException - evaluation exception

serialize

public void serialize(ResultReader rr,
                      XQContext ctx,
                      int level)
               throws org.xml.sax.SAXException

Description copied from class: Item

Serializes the item.

Overrides:

serialize in class Item

Parameters:

rr - content handler

ctx - query context

level - current level

Throws:

org.xml.sax.SAXException - SAX exception

str

public byte[] str()

Description copied from class: Expr

Returns an atomized string.

Overrides:

str in class Expr

Returns:

string representation

toString

public java.lang.String toString()

Overrides:

toString in class Item