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#107 JavaDoc for Singleton

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This commit is contained in:
Ilkka Seppala
2015-08-21 23:09:51 +03:00
parent 743b6e69c5
commit 4bf2e3f16d
5 changed files with 88 additions and 74 deletions
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33
singleton/src/test/java/com/iluwatar/singleton/AppTest.java
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@@ -1,14 +1,19 @@
package com.iluwatar.singleton;
import org.junit.Test;
import com.iluwatar.singleton.App;
public class AppTest {
@Test
public void test() {
String[] args = {};
App.main(args);
}
}
package com.iluwatar.singleton;
import org.junit.Test;
import com.iluwatar.singleton.App;
/**
*
* Application test
*
*/
public class AppTest {
@Test
public void test() {
String[] args = {};
App.main(args);
}
}

12
singleton/src/test/java/com/iluwatar/singleton/LazyLoadedSingletonThreadSafetyTest.java
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@@ -5,9 +5,9 @@ import org.junit.Test;
/**
*
* This test case demonstrates thread safety issues of lazy loaded Singleton implementation.
*
* <p>
* Out of the box you should see the test output something like the following:
*
* <p>
* Thread=Thread-4 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@6fde356e
* Thread=Thread-2 creating instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@6fde356e
* Thread=Thread-0 creating instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@6fde356e
@@ -15,13 +15,17 @@ import org.junit.Test;
* Thread=Thread-3 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@6fde356e
* Thread=Thread-1 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@60f330b0
* Thread=Thread-2 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@6fde356e
*
* <p>
* By changing the method signature of LazyLoadedIvoryTower#getInstance from
* <p><blockquote><pre>
* public static LazyLoadedIvoryTower getInstance()
* </pre></blockquote><p>
* into
* <p><blockquote><pre>
* public synchronized static LazyLoadedIvoryTower getInstance()
* </pre></blockquote><p>
* you should see the test output change to something like the following:
*
* <p>
* Thread=Thread-4 creating instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@3c688490
* Thread=Thread-4 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@3c688490
* Thread=Thread-0 got instance=com.iluwatar.singleton.LazyLoadedSingletonThreadSafetyTest$LazyLoadedIvoryTower@3c688490