jberd

Class JBerdNode

java.lang.Object

jberd.JBerdNode

public class JBerdNode
extends java.lang.Object

A node created by the Jberd decoder each time a TLV is encounterd It contains the detail of the TLV and is passed to the JberdHandler during decoding. As decoding proceeds the parent-child structure of the BER input is reflected in a structure of such nodes.

Field Summary

Fields

Modifier and Type	Field and Description
protected BERclass	bclass The node's BERclass
protected BERlength	blentype the node's BERlength encoding
protected BERtype	btype The node's BERtype
protected int	depth the number of levels of hierarchy below the root
protected JBerdNode	par The node's parent node
protected int	tag the node's tag

Constructor Summary

Constructors

Constructor and Description
JBerdNode(int tg) Creates a node on the basis of a tag.
JBerdNode(int tg, BERclass cl, BERtype ty, BERlength lt) Creates a node with a specific tag and other BER properties

Method Summary

Modifier and Type	Method and Description
void	addChild(JBerdNode child) adds a given node as a child
BERclass	getBERclass()
BERlength	getBERlength()
BERtype	getBERtype()
JBerdNode	getChild(int tag) Returns the child node for the given tag.
JBerdNode	getChild(int tag, BERclass cl, BERtype ty, BERlength lt) Returns the child node for the given tag.
int	getDepth()
JBerdTagPath	getPath()
int	getTag()
boolean	hasChild(int tag) checks whether a child with a given tag exists
void	setBERClass(BERclass c) Sets the node's BERclass to the given value
void	setBERlength(BERlength l) Sets the node's BERlength endcoding
void	setBERtype(BERtype t) Sets the node's BERclass to the given value

Methods inherited from class java.lang.Object

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

Field Detail

par

protected JBerdNode par

The node's parent node

tag

protected int tag

the node's tag

depth

protected int depth

the number of levels of hierarchy below the root

btype

protected BERtype btype

The node's BERtype

bclass

protected BERclass bclass

The node's BERclass

blentype

protected BERlength blentype

the node's BERlength encoding

Constructor Detail

JBerdNode

public JBerdNode(int tg)

Creates a node on the basis of a tag. Nodes are created by the Jberd decoder as it proceeds through the input BER stream. Further a root node with a tag of 0 may be created prior to decoding and passed to the decoder.

Parameters:

tg - the tag

JBerdNode

public JBerdNode(int tg,
                 BERclass cl,
                 BERtype ty,
                 BERlength lt)

Creates a node with a specific tag and other BER properties

Parameters:

tg - the tag

cl - the BERclass of the node

ty - the BERtype of the node

lt - the BERlength encoding of the node length

Method Detail

getDepth

public int getDepth()

Returns:

the depth of the node, ie how many layers of hierarchy there are above the node before the root is reached. 0 for the root.

getPath

public JBerdTagPath getPath()

Returns:

the JBerdTagPath of the node

getTag

public int getTag()

Returns:

the tag of the node

getChild

public JBerdNode getChild(int tag)

Returns the child node for the given tag. If no child exists, creates new child with that tag, and returns it

Parameters:

tag - the tag

Returns:

the created or located child node

getChild

public JBerdNode getChild(int tag,
                          BERclass cl,
                          BERtype ty,
                          BERlength lt)

Returns the child node for the given tag. If no child exists, creates new child with that tag, and the given BERclass, BERtype and BERlength encoding. If a child does exist, then sets its BERclass, BERtype and BERlength to the given values and returns it

Parameters:

tag - the tag

cl - the BERclass to be used

ty - the BERtype to be used

lt - the BERlength encoding to be used

Returns:

the created or located child node

hasChild

public boolean hasChild(int tag)

checks whether a child with a given tag exists

Parameters:

tag - the tag

Returns:

true if a child with that tag exists, false if not

addChild

public void addChild(JBerdNode child)

adds a given node as a child

Parameters:

child - the child to add

getBERclass

public BERclass getBERclass()

Returns:

the node's BERclass

setBERClass

public void setBERClass(BERclass c)

Sets the node's BERclass to the given value

Parameters:

c - BERclass value to set

getBERtype

public BERtype getBERtype()

Returns:

the node's BERtype

setBERtype

public void setBERtype(BERtype t)

Sets the node's BERclass to the given value

Parameters:

t - BERtype value to set

getBERlength

public BERlength getBERlength()

Returns:

the node's BERlength endcoding

setBERlength

public void setBERlength(BERlength l)

Sets the node's BERlength endcoding

Parameters:

l - the BERlength endcoding to set