Dr Heinz M. Kabutz – Refactoring to Java 8 Streams and Lambdas Online Self- Study Workshop

 

Course Curriculum

1. Welcome to The Age of Monolithic Legacy

1.1 Welcome (1.12)

1.1.1 Slides

1.1.2 Exercises

1.2 Refactoring (3:48)

1.3 Setting up your IDE (6:14).

1.4 Building the OFBiz Project (6.32)

1.5 Analyzing Code for Refactoring IDEA (12.01)

2. Cleaning up Some Pre-Java 5 Dinosaur Code

2.1 Refactoring to Java 5 (2:04)

2.2 Get Rid Of UnnecessaryBoxing:Unboxing (9.37).

2.3 Changing StringBuffer to StringBuilder (1:30).

2.4 String.contains() IndexOf is better than indexOf() (4:19)

2.5 Replace “for” Loop With Java 5-In (9:47).

2.6 Replace “while” Loop With Java 5-In (10:22).

3. Moving to Java 7. Our Code is entering the Age of Mammals

3.1 Java 5 Refactorings8:18)

3.2 Java 7 Refactorings, Diamond Operator (5.18)

3.3 Java 7 Collapsing Try-Catch Blocks (2.38)

3.4 Java 7 Refactoring to Try-With-Resource (13:11).

4. Fire is Discovered in Lambdas and Method References Java 8

4.1 Java 8 Interfaces: Static Methods (1.27)

4.2 Java 8 Default Methods for Interfaces (2:04).

4.3 How Functional Interfaces Work (1.58)

4.4 The Four Types of Method Refers (10:45).

4.5 Refactoring to Iterable.forEach() (4:41)

4.6 Refactoring to Use Collection.removeIf() (9:10)

5. Java 8 StreamsWe are moving towards the Stone Age

5.1 Introduction to Java 8 Streams (4:43)

5.2 Stream map()Filter()Collect() (4:15)

5.3 Refactoring to Lambdas and Method References (9.54)

5.4 Comparators Java 8 (23:51)

5.5 Arrays.setAll() (1:59)

5.6 Single Map Methods getOrDefault()Fusion(), putIfAbsent() (7:47)

6. Refactoring Our Code to Use map()/collect() The Bronze Age

6.1 Refactoring ContainerConfig.getContainerPropsFromXML() (3:24)

6.2 collect() UtilCache.values() (1:58)

6.3 map():collect() in UtilDateTime.getTimeZones() (4:03)

6.4 Map():collect() in EntityJoinOperator.freeze() (1:35)

6.5 Collection.forEach() in EntityJoinOperator.visit() (0:21)

6.6 map():filter():collect() in EntitytFinderUtil.createCondition() (1:40)

6.7 Map():filter():collect() in EntityDataLoader.getUrlByComponentList() (0:39)

6.8 Map():collect() DelegatorContainer() (1:09)

6.9 Map():sum() in OagisShipmentServices.oagisReceiveShowShipment() (4:20)

6.10 Arrays.setAll() in ShoppingListEvents.markCartItemsArray() (3:21)

7. Matching and Find in StreamsOur Code is Close to the Iron Age

7.1 Stream all.any:noneMatch() (2:06)

7.2 AnyMatch() in MapContext.containsKey() (0:25)

7.3 AllMatch() FileUtil (1.43)

7.4 AllMatch() in EntityJoinOperator.isEmpty() (0:24)

7.5 anyMatch() in ModelEntity.getHasFieldWithAuditLog() (0:43)

7.6 allMatch() in ModelEntity.areFields() (0:16)

7.7 Collect() in ModelEntity.getFieldNamesFromFieldVector() (0:33)

7.8 AnyMatch() in ProductPromoWOrker.hasOrderTotalCondition() (2:16)

7.9 Stream.findFirst:Any (1:57)

7.10 findFirst() MapContext.get() (4:34)

7.11 Creating Stream with Spliterator in findFirst() in UtilObject.getObjectFromFactory() (3:38)

7.12 findFirst() ModelRelation (0.58)

7.13 FindFirst() ShoppingCartItem (1.11)

7.14 FindFirst() in LoadSale.selectedSale() (4:47)

7.15 Optional in OrderReadHelper.getShippableSizes() (5:00)

8. We enter the Information Age, but not a monolithic one.

8.1 distinct() in PaymentGatewayServices.capturePaymentsByInvoice() (3:23)

8.2 filter():collect() in ContainerConfig.getPropertiesWithValue() (2:27)

8Map.3():sum() in UtilCache.getSizeInBytes() (4:23)

8.4 deep Refactoring in UtilMisc.LocaleHolder.getAvailableLocaleList() (12:22)

8.5 filter():map():collect() in ModelGroupReader.getEntityNamesByGroup() (1:01)

8.6 map():reduce() in InvoiceServices.updatePaymentApplicationDefBd() (3:41)

8.7 Collectors.groupingBy() in ModelReader.rebuildResourceHandlerEntities() (4:58)

8.8 groupingBy():Checked Exception with ModelReader.getEntitiesByPackage() (13:42)

8.9 Creating Own Spliterator for NodeELResolver.getValue() (6:27)

8.10 Conclusion (1.11)

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