org.basex.build
Class MemBuilder

java.lang.Object
  org.basex.core.Progress
      org.basex.build.Builder
          org.basex.build.MemBuilder

public final class MemBuilder
extends Builder

This class creates a memory based database instance.

Author:

Workgroup DBIS, University of Konstanz 2005-08, ISC License, Christian Gruen

Field Summary

Fields inherited from class org.basex.build.Builder

elms, meta, size

Constructor Summary

MemBuilder()

Method Summary

void	addAttr(int n, int s, byte[] v, int d) Adds an attribute to the database.
void	addDoc(byte[] tok) Adds a document node to the database.
void	addElem(int tok, int s, int dis, int a, boolean n) Adds an element node to the database.
void	addText(byte[] tok, int par, byte kind) Adds a text node to the database.
void	close() Closes open references.
MemData	finish() Finishes the build process and returns a database reference.
MemBuilder	init(java.lang.String db) Initializes the database construction.
void	setAttValue(int pre, byte[] val) Stores an attribute value to the specified table position.
void	setSize(int pre, int val) Stores a size value to the specified table position.

Methods inherited from class org.basex.build.Builder

build, comment, det, emptyElem, encoding, endDoc, endElem, nodeAndText, pi, prog, startDoc, startElem, startNS, text, tit

Methods inherited from class org.basex.core.Progress

checkStop, detail, progress, progress, stop, title

Methods inherited from class java.lang.Object

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

Constructor Detail

MemBuilder

public MemBuilder()

Method Detail

init

public MemBuilder init(java.lang.String db)

Description copied from class: Builder

Initializes the database construction.

Specified by:

init in class Builder

Parameters:

db - name of database

Returns:

builder instance

finish

public MemData finish()
               throws java.io.IOException

Description copied from class: Builder

Finishes the build process and returns a database reference.

Specified by:

finish in class Builder

Returns:

data database instance

Throws:

java.io.IOException - in case of parsing or writing problems

close

public void close()

Description copied from class: Builder

Closes open references.

Specified by:

close in class Builder

addDoc

public void addDoc(byte[] tok)

Description copied from class: Builder

Adds a document node to the database.

Specified by:

addDoc in class Builder

Parameters:

tok - the token to be added (tag name or content)

addElem

public void addElem(int tok,
                    int s,
                    int dis,
                    int a,
                    boolean n)
             throws java.io.IOException

Description copied from class: Builder

Adds an element node to the database. This method stores a preliminary size value; if this node has further descendants, Builder.setSize(int, int) has to be called with the final size value.

Specified by:

addElem in class Builder

Parameters:

tok - the tag name reference

s - the tag namespace

dis - distance (relative parent reference)

a - number of attributes

n - element has namespaces

Throws:

java.io.IOException - in case of parsing or writing problems

addAttr

public void addAttr(int n,
                    int s,
                    byte[] v,
                    int d)

Description copied from class: Builder

Adds an attribute to the database.

Specified by:

addAttr in class Builder

Parameters:

n - attribute name

s - namespace

v - attribute value

d - distance (relative parent reference)

addText

public void addText(byte[] tok,
                    int par,
                    byte kind)

Description copied from class: Builder

Adds a text node to the database.

Specified by:

addText in class Builder

Parameters:

tok - the token to be added (tag name or content)

par - distance (relative parent reference)

kind - the node kind

setSize

public void setSize(int pre,
                    int val)

Description copied from class: Builder

Stores a size value to the specified table position.

Specified by:

setSize in class Builder

Parameters:

pre - pre reference

val - value to be stored

setAttValue

public void setAttValue(int pre,
                        byte[] val)

Description copied from class: Builder

Stores an attribute value to the specified table position.

Specified by:

setAttValue in class Builder

Parameters:

pre - pre reference

val - value to be stored