org.basex.query.up.primitives

Class DBAdd

java.lang.Object

org.basex.query.up.primitives.UpdatePrimitive

org.basex.query.up.primitives.StructuralUpdate

org.basex.query.up.primitives.NodeCopy

org.basex.query.up.primitives.DBAdd

All Implemented Interfaces:

java.lang.Comparable<UpdatePrimitive>

public final class DBAdd
extends NodeCopy

Add primitive.

Author:

BaseX Team 2005-12, BSD License, Dimitar Popov

Field Summary

Fields inherited from class org.basex.query.up.primitives.UpdatePrimitive

data, input, pre, type

Constructor Summary

Constructors

Constructor and Description
DBAdd(Data d, InputInfo i, Item it, java.lang.String p, Context c) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	adjacentTexts(int c) Checks whether adjacent text nodes have been introduced as a result of this update primitive.
void	apply() Applies this update primitive to the corresponding database.
void	merge(UpdatePrimitive u) Merges two update primitives, as they have the same target node.
void	prepare() Prepares this update primitive before execution.
java.lang.String	toString()

Methods inherited from class org.basex.query.up.primitives.NodeCopy

size

Methods inherited from class org.basex.query.up.primitives.StructuralUpdate

preShifts

Methods inherited from class org.basex.query.up.primitives.UpdatePrimitive

compareTo, targetNode, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DBAdd

public DBAdd(Data d,
     InputInfo i,
     Item it,
     java.lang.String p,
     Context c)

Constructor.

Parameters:

d - target database

i - input info

it - document to add

p - document(s) path

c - database context

Method Detail

adjacentTexts

public boolean adjacentTexts(int c)

Description copied from class: StructuralUpdate

Checks whether adjacent text nodes have been introduced as a result of this update primitive. Text node adjacency can only be taken care of if no more updates are to be expected for the left sibling of this target node. The total number of deleted/inserted nodes on the preceding axis of this target node is given recalculate the actual pre value of this target.

Specified by:

adjacentTexts in class StructuralUpdate

Parameters:

c - pre value shifts introduced by updates on the preceding sibling axis of this target node

Returns:

adjacent text nodes have been found and merged

merge

public void merge(UpdatePrimitive u)

Description copied from class: UpdatePrimitive

Merges two update primitives, as they have the same target node.

Parameters:

u - primitive to merge with

apply

public void apply()

Description copied from class: UpdatePrimitive

Applies this update primitive to the corresponding database.

prepare

public void prepare()
             throws QueryException

Description copied from class: NodeCopy

Prepares this update primitive before execution. This includes i.e. the preparation of insertion sequences.

Overrides:

prepare in class NodeCopy

Throws:

QueryException - exception during preparation of data

toString

public java.lang.String toString()

Overrides:

toString in class NodeCopy