Categorize and tag all patterns iluwatar#213

fulai · Dec 28, 2015 · 7ac7e3b · 7ac7e3b
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diff --git a/abstract-factory/index.md b/abstract-factory/index.md
@@ -7,6 +7,7 @@ categories: Creational
 tags: 
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Also known as:** Kit

diff --git a/adapter/index.md b/adapter/index.md
@@ -7,6 +7,7 @@ categories: Structural
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Beginner
 ---
 
 **Also known as:** Wrapper

diff --git a/async-method-invocation/index.md b/async-method-invocation/index.md
@@ -4,7 +4,10 @@ title: Async Method Invocation
 folder: async-method-invocation
 permalink: /patterns/async-method-invocation/
 categories: Concurrency
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
+ - Functional
 ---
 
 **Intent:** Asynchronous method invocation is pattern where the calling thread

diff --git a/bridge/index.md b/bridge/index.md
@@ -7,6 +7,7 @@ categories: Structural
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Also known as:** Handle/Body

diff --git a/builder/index.md b/builder/index.md
@@ -7,6 +7,7 @@ categories: Creational
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Separate the construction of a complex object from its

diff --git a/business-delegate/index.md b/business-delegate/index.md
@@ -4,7 +4,9 @@ title: Business Delegate
 folder: business-delegate
 permalink: /patterns/business-delegate/
 categories: Business Tier
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** The Business Delegate pattern adds an abstraction layer between

diff --git a/caching/index.md b/caching/index.md
@@ -6,6 +6,8 @@ permalink: /patterns/caching/
 categories: Other
 tags:
  - Java
+ - Difficulty-Intermediate
+ - Caching
 ---
 
 **Intent:** To avoid expensive re-acquisition of resources by not releasing

diff --git a/callback/index.md b/callback/index.md
@@ -4,7 +4,11 @@ title: Callback
 folder: callback
 permalink: /patterns/callback/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Functional
+ - Idiom
 ---
 
 **Intent:** Callback is a piece of executable code that is passed as an

diff --git a/chain/index.md b/chain/index.md
@@ -7,6 +7,7 @@ categories: Behavioral
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Avoid coupling the sender of a request to its receiver by giving

diff --git a/command/index.md b/command/index.md
@@ -7,6 +7,7 @@ categories: Behavioral
 tags: 
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Also known as:** Action, Transaction

diff --git a/composite/index.md b/composite/index.md
@@ -7,6 +7,7 @@ categories: Structural
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Compose objects into tree structures to represent part-whole

diff --git a/dao/index.md b/dao/index.md
@@ -3,7 +3,7 @@ layout: pattern
 title: Data Access Object
 folder: dao
 permalink: /patterns/dao/
-categories: Architectural
+categories: Persistence Tier
 tags:
  - Java
  - Difficulty-Beginner

diff --git a/decorator/index.md b/decorator/index.md
@@ -7,6 +7,7 @@ categories: Structural
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Beginner
 ---
 
 **Also known as:** Wrapper

diff --git a/dependency-injection/index.md b/dependency-injection/index.md
@@ -4,7 +4,9 @@ title: Dependency Injection
 folder: dependency-injection
 permalink: /patterns/dependency-injection/
 categories: Behavioral
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
 ---
 
 **Intent:** Dependency Injection is a software design pattern in which one or

diff --git a/double-checked-locking/index.md b/double-checked-locking/index.md
@@ -4,7 +4,10 @@ title: Double Checked Locking
 folder: double-checked-locking
 permalink: /patterns/double-checked-locking/
 categories: Concurrency
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Idiom
 ---
 
 **Intent:** Reduce the overhead of acquiring a lock by first testing the

diff --git a/double-dispatch/index.md b/double-dispatch/index.md
@@ -4,7 +4,10 @@ title: Double Dispatch
 folder: double-dispatch
 permalink: /patterns/double-dispatch/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
+ - Idiom
 ---
 
 **Intent:** Double Dispatch pattern is a way to create maintainable dynamic

diff --git a/event-aggregator/index.md b/event-aggregator/index.md
@@ -4,7 +4,9 @@ title: Event Aggregator
 folder: event-aggregator
 permalink: /patterns/event-aggregator/
 categories: Structural
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
 ---
 
 **Intent:** A system with lots of objects can lead to complexities when a

diff --git a/execute-around/index.md b/execute-around/index.md
@@ -4,7 +4,10 @@ title: Execute Around
 folder: execute-around
 permalink: /patterns/execute-around/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Idiom
 ---
 
 **Intent:** Execute Around idiom frees the user from certain actions that

diff --git a/facade/index.md b/facade/index.md
@@ -7,6 +7,7 @@ categories: Structural
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Beginner
 ---
 
 **Intent:** Provide a unified interface to a set of interfaces in a subsystem.

diff --git a/fluentinterface/index.md b/fluentinterface/index.md
@@ -7,6 +7,7 @@ categories: Other
 tags: 
  - Java
  - Difficulty-Intermediate
+ - Functional
 ---
 
 **Intent:** A fluent interface provides an easy-readable, flowing interface, that often mimics a domain specific language. Using this pattern results in code that can be read nearly as human language.

diff --git a/flux/index.md b/flux/index.md
@@ -4,7 +4,9 @@ title: Flux
 folder: flux
 permalink: /patterns/flux/
 categories: Presentation Tier
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Flux eschews MVC in favor of a unidirectional data flow. When a

diff --git a/flyweight/index.md b/flyweight/index.md
@@ -7,6 +7,8 @@ categories: Structural
 tags: 
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
+ - Caching
 ---
 
 **Intent:** Use sharing to support large numbers of fine-grained objects

diff --git a/front-controller/index.md b/front-controller/index.md
@@ -4,7 +4,9 @@ title: Front Controller
 folder: front-controller
 permalink: /patterns/front-controller/
 categories: Presentation Tier
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Introduce a common handler for all requests for a web site. This

diff --git a/half-sync-half-async/index.md b/half-sync-half-async/index.md
@@ -4,7 +4,9 @@ title: Half-Sync/Half-Async
 folder: half-sync-half-async
 permalink: /patterns/half-sync-half-async/
 categories: Concurrency
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** The Half-Sync/Half-Async pattern decouples synchronous I/O from

diff --git a/intercepting-filter/index.md b/intercepting-filter/index.md
@@ -4,7 +4,9 @@ title: Intercepting Filter
 folder: intercepting-filter
 permalink: /patterns/intercepting-filter/
 categories: Behavioral
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Provide pluggable filters to conduct necessary pre-processing and

diff --git a/interpreter/index.md b/interpreter/index.md
@@ -7,6 +7,7 @@ categories: Behavioral
 tags: 
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Given a language, define a representation for its grammar along

diff --git a/layers/index.md b/layers/index.md
@@ -4,7 +4,10 @@ title: Layers
 folder: layers
 permalink: /patterns/layers/
 categories: Architectural
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
+ - Spring
 ---
 
 **Intent:** Layers is an architectural style where software responsibilities are

diff --git a/lazy-loading/index.md b/lazy-loading/index.md
@@ -4,7 +4,11 @@ title: Lazy Loading
 folder: lazy-loading
 permalink: /patterns/lazy-loading/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Idiom
+ - Caching
 ---
 
 **Intent:** Lazy loading is a design pattern commonly used to defer

diff --git a/memento/index.md b/memento/index.md
@@ -7,6 +7,7 @@ categories: Behavioral
 tags:
  - Java
  - Gang Of Four
+ - Difficulty-Intermediate
 ---
 
 **Also known as:** Token

diff --git a/message-channel/index.md b/message-channel/index.md
@@ -7,6 +7,7 @@ categories: Integration
 tags: 
  - Java
  - EIP
+ - Camel
 ---
 
 **Intent:** When two applications communicate using a messaging system they do it by using logical addresses

diff --git a/model-view-controller/index.md b/model-view-controller/index.md
@@ -4,7 +4,9 @@ title: Model-View-Controller
 folder: model-view-controller
 permalink: /patterns/model-view-controller/
 categories: Presentation Tier
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Separate the user interface into three interconnected components:

diff --git a/model-view-presenter/index.md b/model-view-presenter/index.md
@@ -4,7 +4,9 @@ title: Model-View-Presenter
 folder: model-view-presenter
 permalink: /patterns/model-view-presenter/
 categories: Presentation Tier
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Apply a "Separation of Concerns" principle in a way that allows

diff --git a/monostate/index.md b/monostate/index.md
@@ -4,7 +4,9 @@ title: MonoState
 folder: monostate
 permalink: /patterns/monostate/
 categories: Creational
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
 ---
 
 **Intent:** Enforces a behaviour like sharing the same state amongst all instances.

diff --git a/multiton/index.md b/multiton/index.md
@@ -4,7 +4,9 @@ title: Multiton
 folder: multiton
 permalink: /patterns/multiton/
 categories: Creational
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
 ---
 
 **Intent:** Ensure a class only has limited number of instances, and provide a

diff --git a/naked-objects/index.md b/naked-objects/index.md
@@ -4,7 +4,9 @@ title: Naked Objects
 folder: naked-objects
 permalink: /patterns/naked-objects/
 categories: Architectural
-tags: Java
+tags:
+ - Java
+ - Difficulty-Expert
 ---
 
 **Intent:** The Naked Objects architectural pattern is well suited for rapid

diff --git a/null-object/index.md b/null-object/index.md
@@ -4,7 +4,9 @@ title: Null Object
 folder: null-object
 permalink: /patterns/null-object/
 categories: Behavioral
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
 ---
 
 **Intent:** In most object-oriented languages, such as Java or C#, references

diff --git a/object-pool/index.md b/object-pool/index.md
@@ -4,7 +4,10 @@ title: Object Pool
 folder: object-pool
 permalink: /patterns/object-pool/
 categories: Creational
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Caching
 ---
 
 **Intent:** When objects are expensive to create and they are needed only for

diff --git a/poison-pill/index.md b/poison-pill/index.md
@@ -4,7 +4,9 @@ title: Poison Pill
 folder: poison-pill
 permalink: /patterns/poison-pill/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:** Poison Pill is known predefined data item that allows to provide

diff --git a/private-class-data/index.md b/private-class-data/index.md
@@ -4,7 +4,10 @@ title: Private Class Data
 folder: private-class-data
 permalink: /patterns/private-class-data/
 categories: Other
-tags: Java
+tags:
+ - Java
+ - Difficulty-Beginner
+ - Idiom
 ---
 
 **Intent:** Private Class Data design pattern seeks to reduce exposure of
-Original file line number
+Diff line change
@@ Expand Up / @@ -7,6 +7,7 @@ categories: Creational @@
     tags:
      - Java
      - Gang Of Four
+     - Difficulty-Intermediate
     ---
     **Also known as:** Kit
@@ Expand Down @@