de.vandermeer.skb.base.utils

Class Skb_ArrayUtils

java.lang.Object

de.vandermeer.skb.base.utils.Skb_ArrayUtils

public abstract class Skb_ArrayUtils
extends Object

Methods to manipulate arrays.

Version:

v0.0.3 build 150618 (18-Jun-15) for Java 1.8

Author:

Sven van der Meer <vdmeer.sven@mykolab.com>

Constructor Summary

Constructors

Constructor and Description
Skb_ArrayUtils()

Method Summary

Modifier and Type	Method and Description
static Skb_Transformer<String[][],String[][]>	FLIP_ARRAY() Returns a transformer that flips table (an array of arrays).
static Skb_Transformer<String[][],String[][]>	NORMALISE_ARRAY(int length) Returns a transformer that normalises string arrays.

Methods inherited from class java.lang.Object

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

Constructor Detail

Skb_ArrayUtils

public Skb_ArrayUtils()

Method Detail

FLIP_ARRAY

public static final Skb_Transformer<String[][],String[][]> FLIP_ARRAY()

Returns a transformer that flips table (an array of arrays). For each cell in the table the row and column indexes are 'turned over', that is for instance the cell [1][2] becomes [2][1]. Consider an input table of

 row 1: a1, b1, c1
 row 2: a2, b2, c2
 row 3: a3, b3, c3
 

the transformer will return a table of

 row 1: a1, a2, a3
 row 2: b1, b2, b3
 row 3: c1, c2, c3
 

A null table as input results in a null table in the output.

Returns:

transformer that flips an array

NORMALISE_ARRAY

public static final Skb_Transformer<String[][],String[][]> NORMALISE_ARRAY(int length)

Returns a transformer that normalises string arrays.

Parameters:

length - number of columns in the transformed string array

Returns:

transformer for normalising string arrays