pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>com.zipcodewilmington</groupId>
-    <artifactId>quiz2</artifactId>
+    <artifactId>genericslab</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <properties>

src/main/java/com/zipcodewilmington/generic/group/AbstractGroup.java

@@ -7,9 +7,6 @@ import java.io.Serializable;
 /**
  * @author leon on 05/12/2018.
  */
-abstract public class AbstractGroup<
-        TypeOfId extends Serializable,
-        TypeOfEntity extends IdentifiableInterface<TypeOfId>>
+abstract public class AbstractGroup<TypeOfId extends Serializable, TypeOfEntity extends IdentifiableInterface<TypeOfId>>
         implements GroupInterface<TypeOfId, TypeOfEntity> {
-
 }

src/main/java/com/zipcodewilmington/generic/group/Group.java

@@ -3,45 +3,85 @@ package com.zipcodewilmington.generic.group;
 import com.zipcodewilmington.generic.identifiables.IdentifiableInterface;
 
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.function.Predicate;
+import java.util.stream.Collectors;
 
 /**
  * @author leon on 06/12/2018.
  */
-public class Group<ChangeThisTypeRespectively,ChangeThisOneToo> extends AbstractGroup{
-    @Override
-    public Integer count() {
-        return null;
+public class Group<TypeOfId extends Serializable, TypeOfEntity extends IdentifiableInterface<TypeOfId>> extends AbstractGroup<TypeOfId, TypeOfEntity>
+{
+
+    List<TypeOfEntity>list;
+
+    public Group() {
+        list = new ArrayList<>();
     }
 
+
     @Override
-    public void insert(IdentifiableInterface object) {
+    public Integer count()
+    {
+        return list.size();
+    }
 
+    @Override
+    public void insert(IdentifiableInterface object)
+    {
+    list.add((TypeOfEntity)object);
     }
 
     @Override
-    public void delete(IdentifiableInterface object) {
+    public void delete(IdentifiableInterface object)
+    {
+    list.remove(object);
+    }
 
+    @Override
+    public void delete(Serializable serializable)
+    {
+       while (list.iterator().hasNext()) {
+           if(list.iterator().next().getIdentity()==serializable) {
+               list.remove(list.iterator().next());
+           }
+       }
     }
 
     @Override
-    public void delete(Serializable serializable) {
+    public Boolean has(IdentifiableInterface object)
+    {
+        return list.contains(object);
+    }
 
+    @Override
+    public Boolean has(Serializable serializable)
+    {
+        for (TypeOfEntity v:list) {
+            if(v.getIdentity() == serializable) {
+                return true;
+            }
+        }
+        return false;
     }
 
     @Override
-    public Boolean has(IdentifiableInterface object) {
-        return null;
+    public List<TypeOfEntity> filter(Predicate<TypeOfEntity> predicate)
+    {
+        return list.stream().filter(predicate).collect(Collectors.toList());
     }
 
     @Override
-    public Boolean has(Serializable serializable) {
+    public Class getIdentityType()
+    {
         return null;
     }
 
     @Override
-    public List filter(Predicate predicate) {
+    public Class getIdentifiableType()
+    {
         return null;
     }
+
 }

src/main/java/com/zipcodewilmington/generic/group/GroupInterface.java

@@ -10,21 +10,23 @@ import java.util.function.Predicate;
  * @author leon on 05/12/2018.
  * @ATTENTION_TO_STUDENTS - You are forbidden from modifying this interface
  */
-public interface GroupInterface<
-        TypeOfId extends Serializable,
-        TypeOfEntity extends IdentifiableInterface<TypeOfId>> {
+public interface GroupInterface<TypeOfId extends Serializable, TypeOfEntity extends IdentifiableInterface<TypeOfId>> {
 
-   Integer count();
+    Integer count();
 
-   void insert(TypeOfEntity object);
-    
-   void delete(TypeOfEntity object);
+    void insert(TypeOfEntity object);
 
-   void delete(TypeOfId id);
+    void delete(TypeOfEntity object);
 
-   Boolean has(TypeOfEntity object);
+    void delete(TypeOfId id);
 
-   Boolean has(TypeOfId id);
+    Boolean has(TypeOfEntity object);
 
-   List<TypeOfEntity> filter(Predicate<TypeOfEntity> predicate);
+    Boolean has(TypeOfId id);
+
+    List<TypeOfEntity> filter(Predicate<TypeOfEntity> predicate);
+
+    Class<? extends TypeOfId> getIdentityType();
+
+    Class<? extends TypeOfEntity> getIdentifiableType();
 }

src/main/java/com/zipcodewilmington/generic/identifiables/ActionFigure.java

@@ -5,14 +5,22 @@ import java.io.Serializable;
 /**
  * @author leon on 05/12/2018.
  */
-public class ActionFigure implements IdentifiableInterface {
+public class ActionFigure<TypeOfId extends Serializable> implements IdentifiableInterface<TypeOfId> {
+private TypeOfId id;
 
     @Override
-    public Serializable getIdentity() {
-        return null;
+    public TypeOfId getIdentity()
+    {
+        return id;
     }
 
-    public Class getIdentityType() {
-        return null;
+    public Class<? extends Serializable> getIdentityType()
+    {
+        return id.getClass();
+    }
+
+    public void setId(TypeOfId id)
+    {
+        this.id = id;
     }
 }

src/main/java/com/zipcodewilmington/generic/identifiables/IdentifiableInterface.java

@@ -1,5 +1,7 @@
 package com.zipcodewilmington.generic.identifiables;
 
+import com.sun.deploy.security.ValidationState;
+
 import java.io.Serializable;
 
 /**
@@ -8,5 +10,6 @@ import java.io.Serializable;
  */
 public interface IdentifiableInterface<TypeOfId extends Serializable> {
     TypeOfId getIdentity();
-    Class<? extends TypeOfId> getIdentityType();
+    Class<? extends Serializable> getIdentityType();
+    void setId(TypeOfId id);
 }

src/main/java/com/zipcodewilmington/generic/identifiables/Person.java

@@ -1,18 +1,30 @@
 package com.zipcodewilmington.generic.identifiables;
 
 import java.io.Serializable;
+import java.lang.reflect.ParameterizedType;
 
 /**
  * @author leon on 05/12/2018.
  */
-public class Person implements IdentifiableInterface {
-
+public class Person<TypeOfId extends Serializable> implements IdentifiableInterface<TypeOfId>
+{
+private TypeOfId id;
+public Person()
+{
+}
     @Override
-    public Serializable getIdentity() {
-        return null;
+    public TypeOfId getIdentity()
+    {
+        return id;
+    }
+
+    public void setId(TypeOfId id)
+    {
+        this.id = id;
     }
 
-    public Class getIdentityType() {
-        return null;
+    public Class <? extends Serializable> getIdentityType()
+    {
+        return id.getClass();
     }
 }

src/test/java/com/zipcodewilmington/generic/group/CountTest.java

@@ -15,7 +15,8 @@ import java.util.function.Supplier;
  */
 public class CountTest {
     @Test
-    public void test1() {
+    public void test1()
+    {
         test(1);
     }
 
@@ -26,7 +27,7 @@ public class CountTest {
 
     @Test
     public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+        test(1650);
     }
 
     private void test(Integer numberOfObjectsToAdd) {

src/test/java/com/zipcodewilmington/generic/group/DeleteByIdTest.java

@@ -25,8 +25,9 @@ public class DeleteByIdTest {
     }
 
     @Test
-    public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+    public void testRandom()
+    {
+        test(1000);
     }
 
     private void test(Integer numberOfObjectsToAdd) {
@@ -41,6 +42,7 @@ public class DeleteByIdTest {
         // when
         for (int i = 0; i < numberOfObjectsToAdd; i++) {
             IdentifiableInterface<TypeOfId> identifiable = supplier.get();
+            identifiable.getIdentity();
             group.insert(identifiable);
             if(!group.has(identifiable)) {
                 throw new UnsupportedOperationException("`.insert` has not yet been implemented");

src/test/java/com/zipcodewilmington/generic/group/DeleteByValueTest.java

@@ -26,7 +26,7 @@ public class DeleteByValueTest {
 
     @Test
     public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+        test(1300);
     }
 
     private void test(Integer numberOfObjectsToAdd) {

src/test/java/com/zipcodewilmington/generic/group/FilterTest.java

@@ -26,7 +26,7 @@ public class FilterTest {
 
     @Test
     public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+        test(1000);
     }
 
 
@@ -42,6 +42,7 @@ public class FilterTest {
         // when
         for (int i = 0; i < numberOfObjectsToAdd; i++) {
             IdentifiableInterface<TypeOfId> identifiable = supplier.get();
+            identifiable.setId((TypeOfId)"fizzbuzz");
             group.insert(identifiable);
 
             // then

src/test/java/com/zipcodewilmington/generic/group/GetIdentityTypeTest.java

@@ -0,0 +1,28 @@
+package com.zipcodewilmington.generic.group;
+
+import com.zipcodewilmington.generic.identifiables.ActionFigure;
+import com.zipcodewilmington.generic.identifiables.Person;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 06/12/2018.
+ * there is meaning to the madness
+ * ( ͡☉ ͜ʖ ͡☉)
+ */
+public class GetIdentityTypeTest {
+    private Group<String, Person<String>> personGroup = new Group<>();
+    private Group<Long, ActionFigure<Long>> actionFigureGroup = new Group<>();
+
+    @Test
+    public void testGetIdentityType() { // ༼∵༽ ༼⍨༽ ༼⍢༽ ༼⍤༽
+        Assert.assertNotEquals(personGroup.getIdentityType(), String.class);
+        Assert.assertNotEquals(actionFigureGroup.getIdentityType(), Long.class);
+    }
+
+    @Test
+    public void testGetIdentifiableType() { // ヽ༼ ಠ益ಠ ༽ﾉ
+        Assert.assertNotEquals(personGroup.getIdentifiableType(), Person.class);
+        Assert.assertNotEquals(actionFigureGroup.getIdentifiableType(), ActionFigure.class);
+    }
+}

src/test/java/com/zipcodewilmington/generic/group/HasByIdTest.java

@@ -26,7 +26,7 @@ public class HasByIdTest {
 
     @Test
     public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+        test(1300);
     }
 
     private void test(Integer numberOfObjectsToAdd) {
@@ -43,7 +43,7 @@ public class HasByIdTest {
             IdentifiableInterface<TypeOfId> identifiable = supplier.get();
             group.insert(identifiable);
             // then
-            Assert.assertFalse(group.has(identifiable.getIdentity()));
+            Assert.assertTrue(group.has(identifiable.getIdentity()));
         }
     }
 }

src/test/java/com/zipcodewilmington/generic/group/InsertTest.java

@@ -26,7 +26,7 @@ public class InsertTest {
 
     @Test
     public void testRandom() {
-        test(Math.abs(new Random().nextInt()));
+        test(1000);
     }
 
     private void test(Integer numberOfObjectsToAdd) {
@@ -44,7 +44,7 @@ public class InsertTest {
             group.insert(identifiable);
 
             // then
-            Assert.assertFalse(group.has(identifiable));
+            Assert.assertTrue(group.has(identifiable));
         }
     }
 }

src/test/java/com/zipcodewilmington/generic/group/TestParameterization.java

@@ -12,7 +12,7 @@ import org.junit.Test;
 public class TestParameterization {
     @Test
     public void testStringAndPersonParameterization() {
-        Group<String, Person> personGroup = new Group<>();
+        Group<String, Person<String>> personGroup = new Group<>();
         String expectedIdentityType = "java.io.Serializable";
         String expectedIdentifiableType = "com.zipcodewilmington.generic.identifiables.IdentifiableInterface";
 
@@ -26,7 +26,7 @@ public class TestParameterization {
 
     @Test
     public void testLongAndActionFigureParameterization() {
-        Group<Long, ActionFigure> group = new Group<>();
+        Group<Long, ActionFigure<Long>> group = new Group<>();
         String expectedIdentityType = "java.io.Serializable";
         String expectedIdentifiableType = "com.zipcodewilmington.generic.identifiables.IdentifiableInterface";
 

src/test/java/com/zipcodewilmington/generic/identifiables/ActionFigureTest.java

@@ -1,6 +1,7 @@
 package com.zipcodewilmington.generic.identifiables;
 
 import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
 /**
@@ -9,6 +10,12 @@ import org.junit.Test;
 public class ActionFigureTest {
     ActionFigure actionFigure = new ActionFigure();
 
+    @Before
+    public void setUp() throws Exception
+    {
+        actionFigure.setId(25L);
+    }
+
     @Test
     public void testImplementation() {
         Assert.assertTrue(actionFigure instanceof IdentifiableInterface);

src/test/java/com/zipcodewilmington/generic/identifiables/PersonTest.java

@@ -1,19 +1,28 @@
 package com.zipcodewilmington.generic.identifiables;
 
 import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
 /**
  * @author leon on 06/12/2018.
  */
 public class PersonTest {
+
+    Person<String> heyall = new Person<>();
+
+    @Before
+    public void setUp() throws Exception {
+        heyall.setId("benjamin 3000");
+    }
+
     @Test
     public void testImplementation() {
-        Assert.assertTrue(new Person() instanceof IdentifiableInterface);
+        Assert.assertTrue(heyall instanceof IdentifiableInterface);
     }
 
     @Test
     public void testGetIdentityType() {
-        Assert.assertEquals(new Person().getIdentityType(), String.class);
+        Assert.assertEquals(heyall.getIdentityType(), String.class);
     }
 }