eu.bandm.music.entities

Class MTree.Visitor

java.lang.Object

eu.bandm.music.entities.MTree.Visitor

Enclosing class:

MTree

public abstract class MTree.Visitor
extends Object

Central means for evaluating an MTree. Given an MTree m, execute m.new Visitor(){...}.visit(); The code at "..." must override action(MTree).

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Rational	currentProportion The factor to apply (at the currently visited node) to the printed duration symbols.
(package private) @Opt MTree.EssentialBracket	lowestBracket The most recently recognizes bracket when descending.

Constructor Summary

Constructors

Constructor and Description
Visitor()

Method Summary

Modifier and Type	Method and Description
abstract void	action(MTree mt) Payload method to be overridden by user.
protected void	testCloseBrackets(Rational when) Called for each node to close essential n-plet-brackets, iff their end-of-duration is reached.
void	visit() Entry point for applyint the visitor to the node it is an inner instance of.

Methods inherited from class java.lang.Object

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

Field Detail

currentProportion

Rational currentProportion

The factor to apply (at the currently visited node) to the printed duration symbols.

lowestBracket

@Opt
@Opt MTree.EssentialBracket lowestBracket

The most recently recognizes bracket when descending.

Constructor Detail

Visitor

public Visitor()

Method Detail

testCloseBrackets

protected void testCloseBrackets(Rational when)

Called for each node to close essential n-plet-brackets, iff their end-of-duration is reached. Ignores vanishing brackets, because they are not in effect when their child nodes are. Reads and alters the global register lowestBracket and writes currentProportion. ATTENTION ASSUME that for each bracket holds: "vanishing implies singleton"

visit

public void visit()

Entry point for applyint the visitor to the node it is an inner instance of.

action

public abstract void action(MTree mt)

Payload method to be overridden by user. currentProportion and lowestBracket can be used in the code additionally to the argument "mt".