provided.music
Class NESeqList

java.lang.Object
  provided.music.NESeqList

All Implemented Interfaces:

IPhrase, ISeqList

public class NESeqList
extends java.lang.Object
implements ISeqList

A non-empty ("cons") sequence list.

Field Summary

private IPhrase	_first The "first" of the list
private ISeqList	_rest The "rest" of the list
private static IPhraseVisitor	_toStringAlgo toString algo for rest, the recursive helper function of the ToString algo.

Constructor Summary

NESeqList(IPhrase first, ISeqList rest)
Cons an IPhrase to a Sequence List.

Method Summary

java.lang.Object	execute(IPhraseVisitor algo, java.lang.Object... params) Calls the "NESeqList" case of the visitor.
IPhrase	getFirst() Accessor method for the first element
ISeqList	getRest() Accessor method for the rest of the lsit
static void	setToStringAlgo(IPhraseVisitor stringAlgo) Setter for the _toStringAlgo helper.
java.lang.String	toString() Run a visitor over the list to convert it to a String.

Methods inherited from class java.lang.Object

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

Field Detail

_first

private IPhrase _first

The "first" of the list

_rest

private ISeqList _rest

The "rest" of the list

_toStringAlgo

private static IPhraseVisitor _toStringAlgo

toString algo for rest, the recursive helper function of the ToString algo.

Constructor Detail

NESeqList

public NESeqList(IPhrase first,
                 ISeqList rest)

Cons an IPhrase to a Sequence List.

Method Detail

getFirst

public IPhrase getFirst()

Accessor method for the first element

Returns:

the IPhrase that is the first element of the sequence list

getRest

public ISeqList getRest()

Accessor method for the rest of the lsit

Returns:

the rest of the sequence list

execute

public java.lang.Object execute(IPhraseVisitor algo,
                                java.lang.Object... params)

Calls the "NESeqList" case of the visitor.

Specified by:

execute in interface IPhrase

Parameters:

algo - The visitor that is being used

params - vararg input parameters for the visitor.

Returns:

the result of running the visitor on this host.

setToStringAlgo

public static void setToStringAlgo(IPhraseVisitor stringAlgo)

Setter for the _toStringAlgo helper.

Parameters:

stringAlgo - The helper algo to use.

toString

public java.lang.String toString()

Run a visitor over the list to convert it to a String. Delegates to the rest of the list using the helper algo, with the accumulator (params[0]) set to "{"+_first.toString().

Overrides:

toString in class java.lang.Object

Returns:

"{a, b, c, d}"