org.vishia.util

Class DataAccess.Conversions

java.lang.Object

org.vishia.util.DataAccess.Conversions

Enclosing class:

DataAccess

private static class DataAccess.Conversions
extends java.lang.Object

This inner class contains all possible automatic special conversions.

• Note that conversions from an derived type to a reference of a basic type are detected automatically. Therefore a number2char is sufficient for integer2char, short2char etc.
• Note that all simple types are boxed into there Wrapper types, both for input and output.
• Note that a Integer is based on Number etc.

Field Summary

Fields

Modifier and Type	Field and Description
protected static DataAccess.Conversion	calcValue2int CalculatorExpr.Value to Integer.
protected static DataAccess.Conversion	charSeq2char CharSequence to Character.
protected static DataAccess.Conversion	charSequence2String CharSequence to String.
protected static DataAccess.Conversion	double2float Double to Float.
protected static DataAccess.Conversion	float2double Float to Double
protected static DataAccess.Conversion	int2bool Integer to Boolean.
protected static DataAccess.Conversion	int2byte Integer to Byte.
protected static DataAccess.Conversion	int2char Integer to Character.
protected static DataAccess.Conversion	int2double Integer to Double.
protected static DataAccess.Conversion	int2float Integer to Float.
protected static DataAccess.Conversion	int2long Integer to Long.
protected static DataAccess.Conversion	int2short Integer to Short.
protected static DataAccess.Conversion	list2array List container to appropriate array.
protected static DataAccess.Conversion	long2int Long to Integer.
protected static DataAccess.Conversion	number2bool Number to Boolean.
protected static DataAccess.Conversion	number2char Number to Character.
protected static DataAccess.Conversion	obj2bool Any Object to Boolean.
protected static DataAccess.Conversion	obj2obj Without conversion, returns src.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Conversions()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

calcValue2int

protected static DataAccess.Conversion calcValue2int

CalculatorExpr.Value to Integer.

long2int

protected static DataAccess.Conversion long2int

Long to Integer.

int2char

protected static DataAccess.Conversion int2char

Integer to Character. Adequate to Number to Boolean, but a tick faster because the superclass should not be tested.

int2bool

protected static DataAccess.Conversion int2bool

Integer to Boolean. Adequate to Number to Boolean, but a tick faster because the superclass should not be tested.

int2byte

protected static DataAccess.Conversion int2byte

Integer to Byte.

int2short

protected static DataAccess.Conversion int2short

Integer to Short.

int2long

protected static DataAccess.Conversion int2long

Integer to Long.

int2float

protected static DataAccess.Conversion int2float

Integer to Float.

int2double

protected static DataAccess.Conversion int2double

Integer to Double.

number2char

protected static DataAccess.Conversion number2char

Number to Character.

double2float

protected static DataAccess.Conversion double2float

Double to Float.

float2double

protected static DataAccess.Conversion float2double

Float to Double

number2bool

protected static DataAccess.Conversion number2bool

Number to Boolean. Note that Byte, Short, Integer, Long are Number.

obj2bool

protected static DataAccess.Conversion obj2bool

Any Object to Boolean. It tests obj != null.

charSequence2String

protected static DataAccess.Conversion charSequence2String

CharSequence to String. It uses src.toString();

charSeq2char

protected static DataAccess.Conversion charSeq2char

CharSequence to Character. It matches only if the CharSequence contains exactly 1 character.

list2array

protected static DataAccess.Conversion list2array

List container to appropriate array.

obj2obj

protected static DataAccess.Conversion obj2obj

Without conversion, returns src.

Constructor Detail

Conversions

private Conversions()