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Military Style For Effective Email Communications

The military structure their communications for maximum clarity and conciseness. These are the key points to write emails in an fffective manner:

1. Prefix Email subject with keyword

Format: STATUS - Message Title

Status keywords:

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Spock Useful Patterns Cheatsheet

Adding sequences of behaviour to Mocks and Stubs

The >>> operator allows a sequence of values to be returned:

myMock.someCall() >>> ['first value', 'second value', 'third value', 'etc']

This returns each string in turn. Behaviour (such as throwing exceptions) in closures cannot be used by this operator.

The >> operator allows value or behaviour (closures) to be returned

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Design Patterns implemented in Java 8

These patterns are implemented using Java 8 Lambdas (together with Project Lombok annotations).

Factory Pattern

Factory I : No Parameter Constructor

Enum class:

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Java Lambda Syntax

As an expression

(Person p) -> p.getGender() == Person.Sex.MALE
    && p.getAge() >= 18
    && p.getAge() <= 25

As a local variable

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Command Cheatsheet

• Convert Maven build to gradle

  gradle init

• Initialise new project folder structure (Java example)

  gradle init --type java-library

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// imports a couple of java tasks
apply plugin: "java"

// List available tasks in the shell
> gradle tasks

// A Closure that configures the sourceSets Task
// Sets the main folder as Source folder (where the compiler is looking up the .java files)
sourceSets {
  main.java.srcDir "src/main"