Package org.faktorips.codegen

Class ConversionCodeGenerator<T extends CodeFragment>

java.lang.Object

org.faktorips.codegen.ConversionCodeGenerator<T>

All Implemented Interfaces:

ConversionMatrix

public class ConversionCodeGenerator<T extends CodeFragment>
extends Object
implements ConversionMatrix

The ConversionCodeGenerator extends the ConversionMatrix with the ability to generate the Java source code needed to convert the value of a given data type to another (if the conversion is possible).

Constructor Summary

Constructors

Constructor	Description
ConversionCodeGenerator()

Method Summary

Modifier and Type	Method	Description
void	add(SingleConversionCg<T> conversion)
boolean	canConvert(Datatype from, Datatype to)	Returns true if a value of datatype from can be converted into one of datatype to.
T	getConversionCode(Datatype from, Datatype to, T fromValue)	Returns the Java source code that converts a value of Datatype from to a value of Datatype to if possible.
static final ConversionCodeGenerator<JavaCodeFragment>	getDefault()	Returns a default ConversionCodeGenerator that contains the following conversions.

Methods inherited from class java.lang.Object

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

Constructor Details

ConversionCodeGenerator

public ConversionCodeGenerator()

Method Details

getDefault

public static final ConversionCodeGenerator<JavaCodeFragment> getDefault()

Returns a default ConversionCodeGenerator that contains the following conversions.

• Primitive boolean to Boolean
• Boolean to primitive boolean
• Primitive int to Integer
• Integer to primitive int
• Primitive int to Decimal
• Integer to Decimal
• Any data type to String

add

public void add(SingleConversionCg<T> conversion)

canConvert

public boolean canConvert(Datatype from,
 Datatype to)

Description copied from interface: ConversionMatrix

Returns true if a value of datatype from can be converted into one of datatype to. If datatype from and to are equal, the method returns true.

Specified by:

canConvert in interface ConversionMatrix

getConversionCode

public T getConversionCode(Datatype from,
 Datatype to,
 T fromValue)

Returns the Java source code that converts a value of Datatype from to a value of Datatype to if possible. Returns null if the conversion is not possible.

Parameters:

from - The data type to convert from.

to - The data type to convert to.

fromValue - A Java source code fragment containing an expression that evaluates to a value of Datatype from.