Go for the Money
Adopt JSR 354
Slideshare 2014
March 2014
Go for the money – Adopt JSR 354 -
http://java.net/projects/java...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Bio
Anatole Tresch
Consultant, Coach
Credit Sui...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Agenda
3
Overview
Setup
Adoption Areas
API Chal...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Overview
4
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Money Machine
5
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Overview of JSR 354 and Javamoney
API (javax.mo...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currencies and Monetary Amounts
javax.money
7
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currencies (continued)
API
8
Allow currencies w...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currencies (continued)
API Samples
CurrencyUnit...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Monetary Amounts
General Aspects
10
Amount = Cu...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Monetary Amounts (continued)
Key Decisions
11
S...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Monetary Amounts (continued)
The API
public int...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Monetary Context
Model Amount Capabilities
13
D...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Monetary Context (continued)
The API
public fin...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Creating Monetary Amounts
Monetary Amount Facto...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Creating Monetary Amounts (continued)
Monetary ...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Creating Monetary Amounts
Usage Samples
// Usin...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Extension Points
javax.money
18
cmp Components
...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Extension Points
MonetaryOperator
 Takes an am...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Extension Points (continued)
MonetaryOperator: ...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Extension Points (continued)
MonetaryOperator E...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Extension Points (continued)
MonetaryQuery
 A ...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currency Conversion
javax.money.convert.*
23
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currency Conversion
ExchangeRate
 A ExchangeRa...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currency Conversion
ExchangeRateProvider
// acc...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Currency Conversion (continued)
Performing Conv...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Formatting and Parsing
javax.money.format.*
27
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Formatting and Parsing
MonetaryAmountFormat
Sim...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Formatting and Parsing (continued)
MonetaryAmou...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
JavaMoney OSS Project
org.javamoney.*
30
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
JavaMoney OSS Project
Extended Currency Service...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Links
Current Spec (work in progress, comments ...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Setup
33
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Setup
34
• Install VirtualBox, if not yet done,...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
API Challenge: MoneyMach...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
API Challenge: MoneyMach...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
API Challenge: MoneyMach...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
Helping on the TCK
38
Ob...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
Helping on the TCK (cont...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
Extending the Reference ...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Adoption Areas JSR 354
Stabilizing JavaMoney Li...
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
Q & A
42
Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014
The End
43
Upcoming SlideShare
Loading in …5
×

Adopt JSR 354

429 views
351 views

Published on

Presentation that shows a brief overview about the JSR and gives hint on how you can contribute to the API, TCK or OSS library.

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
429
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Adopt JSR 354

  1. 1. Go for the Money Adopt JSR 354 Slideshare 2014 March 2014 Go for the money – Adopt JSR 354 - http://java.net/projects/javamoney
  2. 2. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Bio Anatole Tresch Consultant, Coach Credit Suisse Technical Coordinator & Architect Specification Lead JSR 354 Regular Conference Speaker Driving Java EE Config Twitter/Google+: @atsticks atsticks@java.net anatole.tresch@credit-suisse.com Java Config Discussion https://groups.google.com/forum/#!forum/java-config Java Config Blog: http://javaeeconfig.blogspot.ch Zurich Java Community (Google Community) Zurich Hackergarten 2
  3. 3. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Agenda 3 Overview Setup Adoption Areas API Challenge: Moneymachine Helping out with the TCK Adding functonalities to the RI, e.g. Cash Roundings Stabilizing JavaMoney Library Other ?
  4. 4. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Overview 4
  5. 5. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Money Machine 5
  6. 6. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Overview of JSR 354 and Javamoney API (javax.money): CurrencyUnit, MonetaryAmount, MonetaryOperator, MonetaryQuery, CurrencyConversion, ExchangeRate, MonetaryAmountFormat, MonetaryException; MonetaryCurrencies, MonetaryAmounts, MonetaryRoundings, MonetaryConversions, MonetaryFormats RI (org.javamoney.moneta): BuildableCurrencyUnit, Money, FastMoney, MonetaryFunctions TCK (org.javamoney.tck): Javamoney (GitHub OSS project): org.javamoney… format (extended API) currencies (mapping) Regions Validity calc 6
  7. 7. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currencies and Monetary Amounts javax.money 7
  8. 8. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currencies (continued) API 8 Allow currencies with arbitrary other currency codes Register additional Currency Units using an flexible SPI Fluent API using a Builder (RI only) Historic Validity of currencies related to regions/countries and vice versa (not part of JSR, but javamoney OSS project) public interface CurrencyUnit{ public String getCurrencyCode(); public int getNumericCode(); public int getDefaultFractionDigits(); } public final class MonetaryCurrencies{ public CurrencyUnit getCurrency(String currencyCode); public CurrencyUnit getCurrency(Locale locale); public boolean isCurrencyAvailable(String currencyCode); public boolean isCurrencyAvailable(String locale); }
  9. 9. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currencies (continued) API Samples CurrencyUnit currency1 = MonetaryCurrencies.getCurrency("USD"); CurrencyUnit currency2 = MonetaryCurrencies.getCurrency( Locale.GERMANY); CurrencyUnit bitcoin = new BuildableCurrencyUnit.Builder("BTC") .setNumericCode(123456) .setDefaultFractionDigits(8) .create(); 9 Access a CurrencyUnit Build a CurrencyUnit (RI only) Register a CurrencyUnit CurrencyUnit bitcoin = ….create(true);
  10. 10. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Monetary Amounts General Aspects 10 Amount = Currency + Numeric Value + Capabilities Arithmetic Functions, Comparison Fluent API
  11. 11. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Monetary Amounts (continued) Key Decisions 11 Support Several Numeric Representations (instead of one single fixed value type) Use functional design for extendible functionality (MonetaryOperator, MonetaryQuery) Define Implementation Recommendations • Rounding should to be modelled as separate concern (a MonetaryOperator) • Ensure Interoperability by the MonetaryAmount interface • Precision/scale capabilities should be inherited to its operational results.
  12. 12. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Monetary Amounts (continued) The API public interface MonetaryAmount{ public CurrencyUnit getCurrency(); public NumberValue getNumber(); public MonetaryContext getMonetaryContext(); public MonetaryAmount with(MonetaryOperator operator); public <R> R query(MonetaryQuery<R> query); public MonetaryAmountFactory<? extends MonetaryAmount> getFactory(); … public boolean isLessThanOrEqualTo(MonetaryAmount amt); public boolean isLessThan(MonetaryAmount amt); public boolean isEqualTo(MonetaryAmount amt); public int signum(); … public MonetaryAmount add(MonetaryAmount amount); public MonetaryAmount subtract(MonetaryAmount amount); public MonetaryAmount divide(long number); public MonetaryAmount multiply(Number number); public MonetaryAmount remainder(double number); … public MonetaryAmount stripTrailingZeros(); } 12
  13. 13. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Monetary Context Model Amount Capabilities 13 Describes the capabilities of a MonetaryAmount. Accessible from each MonetaryAmount instance. Allows querying a feasible implementation type from MonetaryAmounts. Contains common aspects Max precision, max scale, amount flavor Arbitrary attributes E.g. RoundingMode, MathContext, …
  14. 14. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Monetary Context (continued) The API public final class MonetaryContext extends AbstractContext implements Serializable { public static enum AmountFlavor{ PRECISION, PERFORMANCE, UNDEFINED } public int getPrecision(); public int getMaxScale(); public AmountFlavor getAmountFlavor(); public Class<? extends MonetaryAmount> getAmountType(); public static final class Builder{…} } public abstract class AbstractContext implements Serializable{ … public <T> T getNamedAttribute(Class<T> type, Object key, T defaultValue); public <T> T getNamedAttribute(Class<T> type, Object key); public <T> T getAttribute(Class<T> type, T defaultValue); public <T> T getAttribute(Class<T> type); public Set<Class<?>> getAttributeTypes(); } 14
  15. 15. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Creating Monetary Amounts Monetary Amount Factory 15 Creates new instances of MonetaryAmount. Declares The concrete MonetaryAmount implementation type returned. The min/max MonetaryContext supported. Can be configured with a target CurrencyUnit A numeric value MonetaryContext.
  16. 16. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Creating Monetary Amounts (continued) Monetary Amount Factory public interface MonetaryAmountFactory<T extends MonetaryAmount> { Class<? extends MonetaryAmount> getAmountType(); MonetaryAmountFactory<T> setCurrency(String currencyCode); MonetaryAmountFactory<T> setCurrency(CurrencyUnit currency); MonetaryAmountFactory<T> setNumber(double number); MonetaryAmountFactory<T> setNumber(long number); MonetaryAmountFactory<T> setNumber(Number number); MonetaryAmountFactory<T> setContext(MonetaryContext monetaryContext); MonetaryAmountFactory<T> setAmount(MonetaryAmount amount); T create(); MonetaryContext getDefaultMonetaryContext(); MonetaryContext getMaximalMonetaryContext(); } 16
  17. 17. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Creating Monetary Amounts Usage Samples // Using the default type MonetaryAmount amount1 = MonetaryAmounts.getAmountFactory() .setCurrency("USD“) .setNumber(1234566.15) .create(); // Using an explicit type Money amount2 = MonetaryAmounts.getAmountFactory(Money.class) .setCurrency("USD“) .setNumber(1234566.15) .create(); // Query a matching implementation type Class<? extends MonetaryAmount> type = MonetaryAmounts.queryAmontType( new MonetaryContext.Builder() .setAmountFlavor( AmountFlavor.PERFORMANT) .create()); MonetaryAmount amount3 = MonetaryAmounts.getAmountFactory(type) .setCurrency("USD“) .setNumber(1234566.15) .create(); 17
  18. 18. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Extension Points javax.money 18 cmp Components Component1 ProvidedInterface1 RequiredInterface Component2 RequiredInterface
  19. 19. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Extension Points MonetaryOperator  Takes an amount and procudes some other amount. • With different value • With different currency • Or both // @FunctionalInterface public interface MonetaryOperator { public MonetaryAmount apply(MonetaryAmount amount); } • Operators then can be applied on every MonetaryAmount: public interface MonetaryAmount{ … public MonetaryAmount with (MonetaryOperator operator); … } 19
  20. 20. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Extension Points (continued) MonetaryOperator: Use Cases Extend the algorithmic capabilities • Percentages • Permil • Different Minor Units • Different Major Units • Rounding • Currency Conversion • Financial Calculations • … 20
  21. 21. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Extension Points (continued) MonetaryOperator Example: Rounding and Percentage 21 // round an amount MonetaryOperator rounding = MoneyRoundings.getRounding( MonetaryCurrencies.getCurrency(“USD”)); Money amount = Money.of(“USD”, 12.345567); Money rounded = amount.with(rounding); // USD 12.35 // MonetaryFunctions, e.g. calculate 3% of it Money threePercent = rounded.with( MonetaryFunctions.getPercent(3)); // USD 0.3705
  22. 22. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Extension Points (continued) MonetaryQuery  A MonetaryQuery takes an amount and procuces an arbitrary result: // @FunctionalInterface public interface MonetaryQuery<T> { public T queryFrom(MonetaryAmount amount); }  Queries then can be applied on every MonetaryAmount: public interface MonetaryAmount { … public <T> T query (MonetaryQuary<T> query); … } 22
  23. 23. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currency Conversion javax.money.convert.* 23
  24. 24. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currency Conversion ExchangeRate  A ExchangeRate models a conversion between two currencies: • Base CurrencyUnit • Terminating/target CurrencyUnit • Provider • Conversion Factor, where M(term) = M(base) * f • Additional attributes (ConversionContext) • Rate chain (composite rates)  Rates may be direct or derived (composite rates) 24
  25. 25. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currency Conversion ExchangeRateProvider // access default provider (chain) ExchangeRateProvider prov = MonetaryConversions.getExchangeRateProvider(); // access a provider explicitly prov = MonetaryConversions.getExchangeRateProvider("IMF"); // access explicit provider chain prov = MonetaryConversions.getExchangeRateProvider("ECB", "IMF"); // access Exchange rates ExchangeRate rate = provider.getExchangeRate("EUR", "CHF"); // Passing additional parameters ExchangeRate rate = provider.getExchangeRate("EUR", "CHF", ConversionContext.of( System.currentTimeMillis() + 2000L) ); 25Go for the money - JSR 354 - http://java.net/projects/javamoney
  26. 26. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Currency Conversion (continued) Performing Conversion Accessing a CurrencyConversion (always targeted to a terminating CurrencyUnit): // access from a ExchangeRateProvider ExchangeRateProvider prov = …; CurrencyConversion conv = prov.getCurrencyConversion("INR"); // access it directly (using default rate chain) conv = MonetaryConversions.getConversion("INR"); // access it, using explicit provider chain conv = MonetaryConversions.getConversion("INR", "ECB", "IMF"); Performing conversion: MonetaryAmount chfAmount = MonetaryAmounts.of("CHF",10.50); MonetaryAmount inrAmount = chfAmount.with(conv); // around EUR 8.75 26
  27. 27. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Formatting and Parsing javax.money.format.* 27
  28. 28. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Formatting and Parsing MonetaryAmountFormat Similar to java.text.DecimalFormat, but also ME compatible Configured by AmountStyle, CurrencyStyle, AmountFormatSymbols Supports also custom formats Building AmountStyle using a fluent API Preconfigured format access is also possible 28Go for the money - JSR 354 - http://java.net/projects/javamoney
  29. 29. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Formatting and Parsing (continued) MonetaryAmountFormat: Usage Example // Access a provided format MonetaryAmountFormat format = MonetaryFormats.getAmountFormat( new Locale(“”, “in”)); System.out.println(format.format( Money.of("INR", 39101112.123456)))); output> INR 3,91,01,112.10 29Go for the money - JSR 354 - http://java.net/projects/javamoney
  30. 30. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 JavaMoney OSS Project org.javamoney.* 30
  31. 31. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 JavaMoney OSS Project Extended Currency Services  Currency namespaces (e.g. ISO, VIRTUAL, …)  Currency namespace mapping Validity Services (Historization API) • access of historic currency data related to regions Region Services  Region Forest • Unicode CLDR region tree • ISO 2-, 3-letter countries • Custom Trees Extendible token-based Formatting API Financial Calculations & Formulas 31
  32. 32. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Links Current Spec (work in progress, comments allowed): https://docs.google.com/document/d/1FfihURoCYrbkDcSf1W XM6fHoU3d3tKooMnZLCpmpyV8/edit GitHub Project (JSR and JavaMoney): https://github.com/JavaMoney/javamoney Umbrella Page: http://javamoney.org JSR 354: http://jcp.org Java.net Project: http://java.net/projects/javamoney JUG Chennai Adoption (TrakStok): https://github.com/jugchennaiadoptjava/TrakStok Twitter: @jsr354 Cash Rounding: http://en.wikipedia.org/wiki/Swedish_rounding 32
  33. 33. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Setup 33
  34. 34. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Setup 34 • Install VirtualBox, if not yet done, download from https://www.virtualbox.org • Download the prepared image and start it • Login with debian/debian • Open the IDE of your choice (Eclipse, IntelliJ and Netbeans are preinstalled and setup) • Update the projects/repositories • For Contributors: • Ensure you have a GitHub user account • Create your own Branch of the corresponding repositories • Switch your local repositories on your VM, on which you want to commit, to your branched repos
  35. 35. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 API Challenge: MoneyMachine 35 Objective: Test the API for usability, make proposals to improve How: Checkout/update the MoneyMachine project from https://github.com/atsticks/moneymachine.git Implement the classes in the src/main/java to make the tests green (skeletons are already there) The challenge will guide you throughout the whole JSR Overall 34 test cases of different complexity, you may also selct only a subset ;-) Tell me about improvements Email atsticks@gmail.com (please add [moneymachine] in your subject header) Issues on java.net or gitub Blog your (hopefully positive) experience, twitter, …
  36. 36. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 API Challenge: MoneyMachine Example 36 /** * This class has to be implemented and helps us giving feedback on the JSR's API. This * part of the * project deals with basic aspects such as getting currencies and amounts. * Created by Anatole on 07.03.14. */ public class Basics{ /** * Get a CurrencyUnit using a currency code. * * @param currencyCode the currency code * @return the corresponding CurrencyUnit instance. */ public CurrencyUnit getProvidedCurrency(String currencyCode){ throw new UnsupportedOperationException(); } /** * Get a CurrencyUnit using a Locale, modeling a country. * * @param locale The country locale. * @return the corresponding CurrencyUnit instance. */ public CurrencyUnit getProvidedCurrency(Locale locale){ throw new UnsupportedOperationException(); } ... } Describes the task to be done (incl. Some hints) Replace this with the code
  37. 37. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 API Challenge: MoneyMachine Testing 37 To check your implementation is correct, simply execute the test suite Correct ;-)
  38. 38. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 Helping on the TCK 38 Objective: Help writing the JSRs TCK How: If the JSR is completely new: Checkout the slides, read the spec, so you have a basic idea Branch TCK and RI (sometimes you may also find an issue in the RI) Update/checkout the JSR’s API, RI, JavaMoney parent and TCK Look for the test classes present in the TCK Select tests you want to contribute and coordinate with me Write the tests, if not sure how, you may ask me ;-) If it is the first time working on a TCK, you may do pair programming with a more experienced person Commit your code to your branch Create a Git Pull Request
  39. 39. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 Helping on the TCK (continued) 39 /** * Test successful conversion for possible currency pairs.<br/> * Hint: you may only check for rate factory, when using a hardcoded * ExchangeRateProvider, such a provider * must be also implemented and registered as an SPI. */ @Test @SpecAssertion(id = "432-A1", section="4.3.2") public void testConversion(){ Assert.fail(); } Describes the test very briefly References the according section in the spec Add your test code here. Hint 1: if you are unsure first write a story line Hint 2: some aspects may require to implement multiple tests, just ensure the annotations are on all tests
  40. 40. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 Extending the Reference Implementation 40 Objective: Adding functonalities to the RI How: If the JSR is completely new: Talk with me first Discuss your ideas with me to see where your idea fits best Branch RI (and/or JavaMoney Library) Adding functonalities/tests to the RI (and/or JavaMoney Lib) Write/enhance documentation Commit your changes Create a Pull Request
  41. 41. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Adoption Areas JSR 354 Stabilizing JavaMoney Library 41 Objective: Help stabilizing the functionality of JavaMoney How: If the JSR is completely new: Talk with me first Branch JavaMoney Library Write tests, e.g. for financial calculations Write/enhance documentation New functionalities: discuss with me first Commit your changes Create a Pull Request
  42. 42. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 Q & A 42
  43. 43. Go for the money - JSR 354 - http://java.net/projects/javamoney March 2014 The End 43

×