com.jacob.com.Currency Maven / Gradle / Ivy
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package com.jacob.com;
/**
* Most COM bridges use java.lang.Long as their Java data type for COM Currency
* data. This is because COM currency is a 64 bit number where the last 4 digits
* represent the milli-cents. We wanted to support 64 bit Long values for x64
* platforms so that meant we wanted to map Java.LONG to COM.LONG even though it
* only works for 64 bit platforms. The end result was we needed a new
* representation for Money so we have this.
*
* In the future, this should convert to and from BigDecimal or Double
*/
public class Currency {
Long embeddedValue = null;
/**
* constructor that takes a long already in COM representation
*
* @param newValue
*/
public Currency(long newValue) {
embeddedValue = new Long(newValue);
}
/**
* constructor that takes a String already in COM representation
*
* @param newValue
*/
public Currency(String newValue) {
embeddedValue = new Long(newValue);
}
/**
*
* @return the currency as a primitive long
*/
public long longValue() {
return embeddedValue.longValue();
}
/**
* getter to the inner storage so that cmpareTo can work
*
* @return the embedded long value
*/
protected Long getLongValue() {
return embeddedValue;
}
/**
* compares the values of two currencies
*
* @param anotherCurrency
* @return the usual compareTo results
*/
public int compareTo(Currency anotherCurrency) {
return embeddedValue.compareTo(anotherCurrency.getLongValue());
}
/**
* standard comparison
*
* @param o
* must be Currency or Long
* @return the usual compareTo results
*/
public int compareTo(Object o) {
if (o instanceof Currency) {
return compareTo((Currency) o);
} else if (o instanceof Long) {
return embeddedValue.compareTo((Long) o);
} else
throw new IllegalArgumentException(
"Can only compare to Long and Currency not "
+ o.getClass().getName());
}
/**
* {@inheritDoc}
*/
public boolean equals(Object o) {
if (o == null) {
return false;
} else if (compareTo(o) == 0) {
return true;
} else {
return false;
}
}
}