Oracle ADF: Cannot convert 1 of type class java.math.BigDecimal to class oracle.jbo.domain.Number

Question

This question look stupid but not realy. Cannot convert 1 of type class java.math.BigDecimal to class oracle.jbo.domain.Number

How to convert

1. oracle.jbo.domain.Number into java.math.BigDecimal
2. java.math.BigDecimal into oracle.jbo.domain.Number

I get the Answer number one:

 oracle.jbo.domain.Number value = (Number)valueChangeEvent.getNewValue();
 java.math.BigDecimal costOfBuildingValue = value.bigDecimalValue();

Number two?

Answer 1

You can use the String representation of the number in both ways:

oracle.jbo.domain.Number number = new oracle.jbo.domain.Number(12345);
BigDecimal bigDecimal = new BigDecimal(number.toString());

and vice-versa:

BigDecimal bigDecimal = new BigDecimal(1241241);
oracle.jbo.domain.Number number = new oracle.jbo.domain.Number(bigDecimal.toString());

Even better, if you checkout the javadoc, you will see that there's a Number(BigDecimal bigDecimal) constructor:

BigDecimal bigDecimal = new BigDecimal(1241241);
oracle.jbo.domain.Number number = new oracle.jbo.domain.Number(bigDecimal);

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† ^{Note that I'm using the fully-qualified class name of oracle.jbo.domain.Number to avoid confusion with the java.lang.Number interface.}

Answer 2

Create a new Number as follows:

BigDecimal value = new BigDecimal(...);
Number costOfBuildingNumber = new Number(value);