gaspersic/java-design-patterns
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Java 11 migration: patterns (remaining b-c) (#1081)

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* Moves business-delegate pattern  to java 11

* Moves bytecode pattern  to java 11

* Moves caching pattern  to java 11

* Moves callback pattern  to java 11

* Moves chain pattern  to java 11

* Moves circuit-breaker pattern  to java 11

* Moves collection-pipeline pattern  to java 11

* Moves command pattern  to java 11

* Moves commander pattern  to java 11

* Moves composite pattern  to java 11

* Corrects test cases
This commit is contained in:
Anurag Agarwal
2019-11-13 01:26:46 +05:30
committed by Ilkka Seppälä
parent 6ef840f3cf
commit 33ea7335b1
63 changed files with 798 additions and 979 deletions
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5
callback/src/main/java/com/iluwatar/callback/App.java
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@@ -43,8 +43,7 @@ public final class App {
* Program entry point.
*/
public static void main(final String[] args) {
Task task = new SimpleTask();
Callback callback = () -> LOGGER.info("I'm done now.");
task.executeWith(callback);
var task = new SimpleTask();
task.executeWith(() -> LOGGER.info("I'm done now."));
}
}

5
callback/src/main/java/com/iluwatar/callback/LambdasApp.java
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@@ -42,8 +42,7 @@ public final class LambdasApp {
* Program entry point.
*/
public static void main(final String[] args) {
Task task = new SimpleTask();
Callback c = () -> LOGGER.info("I'm done now.");
task.executeWith(c);
var task = new SimpleTask();
task.executeWith(() -> LOGGER.info("I'm done now."));
}
}

6
callback/src/main/java/com/iluwatar/callback/Task.java
View File

@@ -23,6 +23,8 @@
package com.iluwatar.callback;
import java.util.Optional;
/**
* Template-method class for callback hook execution.
*/
@@ -33,9 +35,7 @@ public abstract class Task {
*/
final void executeWith(final Callback callback) {
execute();
if (callback != null) {
callback.call();
}
Optional.ofNullable(callback).ifPresent(Callback::call);
}
public abstract void execute();