org.osgl

Class Lang.IndexedVisitor<K,T>

java.lang.Object

org.osgl.Lang.FuncBase

org.osgl.Lang.F2<K,T,Void>

org.osgl.Lang.IndexedVisitor<K,T>

Type Parameters:

K - the generic type of the key

T - the generic type of the value

All Implemented Interfaces:

Lang.Func2<K,T,Void>

Enclosing class:

Lang

public abstract static class Lang.IndexedVisitor<K,T>
extends Lang.F2<K,T,Void>

An IndexedVisitor provide a tool to iterate through a Map or indexed list by passing the key/index and the value to the function.

Use IndexedVisitor to iterate through a List

    C.List<Student> students = ...
    students.each(new IndexedVisitor() {
         @Override
        public void visit(int id, Student student) {
            System.out.printf("ID: %s, Name: %s", id, student.getName());
        }
    })

Use IndexedVisitor to iterate through a Map

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	aBool
protected byte	aByte
protected char	aChar
protected double	aDouble
protected float	aFloat
protected long	aLong
protected int	anInt
protected T	any
protected String	aStr
protected Map<String,?>	attr

Constructor Summary

Constructors

Constructor and Description
IndexedVisitor()
IndexedVisitor(boolean b)
IndexedVisitor(byte b)
IndexedVisitor(char c)
IndexedVisitor(double d)
IndexedVisitor(float f)
IndexedVisitor(int i)
IndexedVisitor(long l)
IndexedVisitor(Map<String,?> map)
IndexedVisitor(String s)
IndexedVisitor(T t)

Method Summary

Modifier and Type	Method and Description
Void	apply(K id, T t) Apply the two params to the function
T	get()
<T> T	get(String key)
boolean	getBoolean()
byte	getByte()
char	getChar()
double	getDouble()
float	getFloat()
int	getInt()
long	getLong()
String	getStr()
abstract void	visit(K id, T t)

Methods inherited from class org.osgl.Lang.F2

andThen, andThen, applyOrElse, curry, curry, lift, orElse

Methods inherited from class org.osgl.Lang.FuncBase

breakOut

Methods inherited from class java.lang.Object

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

Field Detail

attr

protected Map<String,?> attr

any

protected T any

aStr

protected String aStr

aBool

protected boolean aBool

anInt

protected int anInt

aFloat

protected float aFloat

aDouble

protected double aDouble

aByte

protected byte aByte

aChar

protected char aChar

aLong

protected long aLong

Constructor Detail

IndexedVisitor

public IndexedVisitor()

IndexedVisitor

public IndexedVisitor(Map<String,?> map)

IndexedVisitor

public IndexedVisitor(T t)

IndexedVisitor

public IndexedVisitor(String s)

IndexedVisitor

public IndexedVisitor(boolean b)

IndexedVisitor

public IndexedVisitor(int i)

IndexedVisitor

public IndexedVisitor(long l)

IndexedVisitor

public IndexedVisitor(double d)

IndexedVisitor

public IndexedVisitor(float f)

IndexedVisitor

public IndexedVisitor(byte b)

IndexedVisitor

public IndexedVisitor(char c)

Method Detail

get

public T get()

getStr

public String getStr()

getBoolean

public boolean getBoolean()

getInt

public int getInt()

getLong

public long getLong()

getFloat

public float getFloat()

getDouble

public double getDouble()

getChar

public char getChar()

getByte

public byte getByte()

get

public <T> T get(String key)

apply

public final Void apply(K id,
                        T t)

Description copied from interface: Lang.Func2

Apply the two params to the function

In case implementing a partial function, it can throw out an NotAppliedException if the function is not defined for the given parameter(s)

Parameters:

id - the first argument of type P1

t - the second argument of type P2

Returns:

the result of type R

visit

public abstract void visit(K id,
                           T t)