Addition of PriorityQueues

-Added: PriorityQueue
-Added: PriorityDequeue
-Added: FIFOQueue
-Added: ArrayFIFO
-Added: ArrayPriorityQueue
-Added: HeapPriorityQueue
-Changed: Micro Optimization for Iterators to reduce Boxing/Unboxing
-Added: Helper replacers for cleaner template code.
-Added: Heap Methods to Arrays
-Changed: Upgraded to SCG1.0.1

README.md

@@ -1,6 +1,32 @@
-# Primitive-Collections
+# Primitive-Collections (To be Renamed)
-
+
-Simple library to create primitive collections.
+This is a Simple Primitive Collections Library i started as a hobby Project.
-Using template files to generate them.
+It's basis is of FastUtil and Java's Collection Library
-
+But both lib's have a lot of problems, and in FastUtils case foundation seem changes to be no longer possible.
-Project for self teaching.
+So this project was started.
+With a Rule-Sheet, and also hopefully more Test-Coverage.
+
+Currently Cons against FastUtil (will/might change over time).
+- No Maps, this is next on the todolist.
+- No Singletons,
+- No BigLists/Sets/Maps
+- No Custom Spliterator support.
+- No Reference Collections.
+- Some implementations are slower due to not including all Micro-optimizations (this might not change)
+- Not as Specific Case Testing compared to FastUtil
+- No Java Serialization implemented
+- Code Generator is right now not finalized and no automatic setup exists as of this moment.
+
+Pros against FastUtil
+- A Cleaner implementation of Collections that do exists: NavigableSet (Exists), PriorityQueues are Save-able outside of java Serialization and a lot of others.
+- More Consistency with features, not leaving a lot of holes in implementations. (Anything outside of HashMaps/Lists have massive holes)
+- Abstract Tests to allow more coverage on tests and allow quicker implementation on tests on new Implementations.
+- A lot better packaging where each types have their own packages to also make it easier to use the library. (lists/sets/collections/queues/utils)
+- Due to package name choice: This Library imports do not overshadow java imports. (Anything after s is overshadowed)
+- No Linux Environment necessary to generate the sourcecode if you want to work on it. All done with Java and or Gradle.
+- A lot of extra functions that become useful in some cases, like: ITrimmable, IArray, extractElements(from, to), moveToFirst/Last, PriorityQueue iterator. Better Synchronization wrappers that expose useful interfaces.
+- More Control how internals work thanks to SanityChecks
+- Support to some extend of a Java Specific Feature: Non-TypeSepcific Collection Non Delete functions. (any method that used Object as Parameter instead of Generic)
+
+This Library also includes my own MergeSort Algorithm that does not need to duplicate the input array.
+It is a bit slower depending on the size, but is a stable sort that does not require to duplicate an array

build.gradle

@@ -1,26 +1,30 @@
-plugins {
+plugins {
-    id 'java-library'
+    id 'java-library'
-}
+}
-
+
-tasks.withType(JavaCompile) {
+tasks.withType(JavaCompile) {
-    options.encoding = 'UTF-8'
+    options.encoding = 'UTF-8'
-}
+}
-
+
-eclipse {
+eclipse {
-	classpath {
+	classpath {
-		downloadJavadoc = true
+		downloadJavadoc = true
-		downloadSources = true
+		downloadSources = true
-	}
+	}
-}
+}
-
+
-repositories {
+repositories {
-    jcenter()
+    jcenter()
-    flatDir {
+    flatDir {
-        dirs '/libs'
+        dirs '/libs'
-    }
+    }
-}
+}
-
+
-dependencies {
+dependencies {
-	compile 'SimpleCodeGenerator:Simple Code Generator:1.0'
+	compile 'SimpleCodeGenerator:Simple Code Generator:1.0.1'
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.12'
-}
+}
+
+test {
+    useJUnit()
+}

src/main/java/speiger/src/builder/example/GlobalVariables.java

@@ -8,6 +8,7 @@ import java.util.Set;
 import java.util.function.UnaryOperator;
 
 import speiger.src.builder.mappers.ArgumentMapper;
+import speiger.src.builder.mappers.IMapper;
 import speiger.src.builder.mappers.InjectMapper;
 import speiger.src.builder.mappers.LineMapper;
 import speiger.src.builder.mappers.SimpleMapper;
@@ -15,7 +16,7 @@ import speiger.src.builder.processor.TemplateProcess;
 
 public class GlobalVariables
 {
-	List<UnaryOperator<String>> operators = new ArrayList<>();
+	List<IMapper> operators = new ArrayList<>();
 	Set<String> flags = new LinkedHashSet<>();
 	ClassType type;
 	
@@ -42,13 +43,12 @@ public class GlobalVariables
 			addSimpleMapper("JAVA_TYPE", type.getCustomJDKType().getKeyType());
 			addSimpleMapper("SANITY_CAST", "castTo"+type.getFileType());
 		}
+		addAnnontion("@PrimitiveOverride", "@Override");
 		addSimpleMapper("@PrimitiveDoc", "");
-		addDeprication("@Primitive");
+		addAnnontion("@Primitive", "@Deprecated");
 		return this;
 	}
 	
-	
-	
 	public GlobalVariables createHelperVariables()
 	{
 		addArgumentMapper("EQUALS_KEY_TYPE", type.isObject() ? "Objects.equals(%2$s, %1$s)" : "Objects.equals(%2$s, KEY_TO_OBJ(%1$s))").removeBraces();
@@ -63,7 +63,10 @@ public class GlobalVariables
 		addInjectMapper("CLASS_TO_KEY", "(("+type.getClassType()+")%s)."+type.getKeyType()+"Value()").removeBraces();
 		addSimpleMapper("APPLY", "applyAs"+type.getCustomJDKType().getNonFileType());
 		addInjectMapper("TO_HASH", type.isObject() ? "%s.hashCode()" : type.getClassType()+".hashCode(%s)").removeBraces();
+		addSimpleMapper("CAST_KEY_ARRAY ", type.isObject() ? "(KEY_TYPE[])" : "");
+		addSimpleMapper("EMPTY_KEY_ARRAY", type.isObject() ? "(KEY_TYPE[])ARRAYS.EMPTY_ARRAY" : "ARRAYS.EMPTY_ARRAY");
 		addInjectMapper("NEW_KEY_ARRAY", type.isObject() ? "(KEY_TYPE[])new Object[%s]" : "new KEY_TYPE[%s]").removeBraces();
+		addInjectMapper("NEW_CLASS_ARRAY", type.isObject() ? "(CLASS_TYPE[])new Object[%s]" : "new CLASS_TYPE[%s]").removeBraces();
 		return this;
 	}
 	
@@ -75,6 +78,9 @@ public class GlobalVariables
 		
 		//Final Classes
 		addClassMapper("ARRAY_LIST", "ArrayList");
+		addClassMapper("ARRAY_FIFO_QUEUE", "ArrayFIFOQueue");
+		addClassMapper("ARRAY_PRIORITY_QUEUE", "ArrayPriorityQueue");
+		addClassMapper("HEAP_PRIORITY_QUEUE", "HeapPriorityQueue");
 		addClassMapper("LINKED_CUSTOM_HASH_SET", "LinkedOpenCustomHashSet");
 		addClassMapper("LINKED_HASH_SET", "LinkedOpenHashSet");
 		addClassMapper("CUSTOM_HASH_SET", "OpenCustomHashSet");
@@ -105,6 +111,8 @@ public class GlobalVariables
 		addClassMapper("LIST_ITER", "ListIter");
 		addClassMapper("LIST", "List");
 		addClassMapper("NAVIGABLE_SET", "NavigableSet");
+		addClassMapper("PRIORITY_QUEUE", "PriorityQueue");
+		addClassMapper("PRIORITY_DEQUEUE", "PriorityDequeue");
 		addClassMapper("SORTED_SET", "SortedSet");
 		addClassMapper("SET", "Set");
 		addClassMapper("STRATEGY", "Strategy");
@@ -129,7 +137,12 @@ public class GlobalVariables
 		addFunctionMapper("NEXT", "next");
 		addSimpleMapper("TO_ARRAY", "to"+type.getNonFileType()+"Array");
 		addFunctionMapper("GET_KEY", "get");
+		addFunctionMapper("ENQUEUE_FIRST", "enqueueFirst");
+		addFunctionMapper("ENQUEUE", "enqueue");
+		addFunctionMapper("DEQUEUE_LAST", "dequeueLast");
+		addFunctionMapper("DEQUEUE", "dequeue");
 		addFunctionMapper("REMOVE_KEY", "rem");
+		addFunctionMapper("REMOVE_LAST", "removeLast");
 		addFunctionMapper("REMOVE", "remove");
 		addFunctionMapper("PREVIOUS", "previous");
 		addFunctionMapper("PEEK", "peek");
@@ -175,38 +188,38 @@ public class GlobalVariables
 	
 	private void addClassMapper(String pattern, String replacement)
 	{
-		operators.add(new SimpleMapper(pattern, type.getFileType()+replacement));		
+		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, type.getFileType()+replacement));		
 	}
 	
 	private void addAbstractMapper(String pattern, String replacement)
 	{
-		operators.add(new SimpleMapper(pattern, String.format(replacement, type.getFileType())));		
+		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, type.getFileType())));		
 	}
 	
 	private void addFunctionMapper(String pattern, String replacement)
 	{
-		operators.add(new SimpleMapper(pattern, replacement+type.getNonFileType()));
+		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, replacement+type.getNonFileType()));
 	}
 	
 	private void addFunctionMappers(String pattern, String replacement)
 	{
-		operators.add(new SimpleMapper(pattern, String.format(replacement, type.getNonFileType())));		
+		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, String.format(replacement, type.getNonFileType())));		
 	}
 	
 	private void addSimpleMapper(String pattern, String replacement)
 	{
-		operators.add(new SimpleMapper(pattern, replacement));
+		operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, replacement));
 	}
 	
-	private void addDeprication(String pattern)
+	private void addAnnontion(String pattern, String value)
 	{
-		if(type == ClassType.OBJECT) operators.add(new LineMapper(pattern));
+		if(type == ClassType.OBJECT) operators.add(new LineMapper(type.name()+"["+pattern+"]", pattern));
-		else operators.add(new SimpleMapper(pattern, "@Deprecated"));
+		else operators.add(new SimpleMapper(type.name()+"["+pattern+"]", pattern, value));
 	}
 	
 	private InjectMapper addInjectMapper(String pattern, String replacement)
 	{
-		InjectMapper mapper = new InjectMapper(pattern, replacement);
+		InjectMapper mapper = new InjectMapper(type.name()+"["+pattern+"]", pattern, replacement);
 		operators.add(mapper);
 		return mapper;
 	}
@@ -218,7 +231,7 @@ public class GlobalVariables
 	
 	private ArgumentMapper addArgumentMapper(String pattern, String replacement, String splitter)
 	{
-		ArgumentMapper mapper = new ArgumentMapper(pattern, replacement, splitter);
+		ArgumentMapper mapper = new ArgumentMapper(type.name()+"["+pattern+"]", pattern, replacement, splitter);
 		operators.add(mapper);
 		return mapper;
 	}

src/main/java/speiger/src/builder/example/TestBuilder.java

@@ -37,6 +37,12 @@ public class TestBuilder extends TemplateProcessor
 		return true;
 	}
 	
+	@Override
+	protected boolean debugUnusedMappers()
+	{
+		return false;
+	}
+	
 	@Override
 	protected void init()
 	{
@@ -55,20 +61,19 @@ public class TestBuilder extends TemplateProcessor
 		nameRemapper.put("AbstractCollection", "Abstract%sCollection");
 		nameRemapper.put("AbstractSet", "Abstract%sSet");
 		nameRemapper.put("AbstractList", "Abstract%sList");
-		blocked.put("Consumer", EnumSet.of(ClassType.OBJECT));
+		addBlockage(ClassType.OBJECT, "Consumer", "Comparator", "Stack");
-		blocked.put("Comparator", EnumSet.of(ClassType.OBJECT));
+		addBlockage(ClassType.BOOLEAN, "Sets", "ArraySet", "AVLTreeSet", "RBTreeSet", "SortedSet", "NavigableSet", "OpenHashSet", "OpenCustomHashSet", "LinkedOpenHashSet", "LinkedOpenCustomHashSet");
-		blocked.put("Stack", EnumSet.of(ClassType.OBJECT));
+	}
-		blocked.put("Sets", EnumSet.of(ClassType.BOOLEAN));
+	
-		blocked.put("ArraySet", EnumSet.of(ClassType.BOOLEAN));
+	protected void addBlockage(ClassType type, String...args) {
-		blocked.put("AVLTreeSet", EnumSet.of(ClassType.BOOLEAN));
+		for(String s : args) {
-		blocked.put("RBTreeSet", EnumSet.of(ClassType.BOOLEAN));
+			EnumSet<ClassType> set = blocked.get(s);
-		blocked.put("RBTreeSet", EnumSet.of(ClassType.BOOLEAN));
+			if(set == null) {
-		blocked.put("SortedSet", EnumSet.of(ClassType.BOOLEAN));
+				set = EnumSet.noneOf(ClassType.class);
-		blocked.put("NavigableSet", EnumSet.of(ClassType.BOOLEAN));
+				blocked.put(s, set);
-		blocked.put("OpenHashSet", EnumSet.of(ClassType.BOOLEAN));
+			}
-		blocked.put("OpenCustomHashSet", EnumSet.of(ClassType.BOOLEAN));
+			set.add(type);
-		blocked.put("LinkedOpenHashSet", EnumSet.of(ClassType.BOOLEAN));
+		}
-		blocked.put("LinkedOpenCustomHashSet", EnumSet.of(ClassType.BOOLEAN));
 	}
 	
 	@Override
@@ -89,7 +94,7 @@ public class TestBuilder extends TemplateProcessor
 	{
 		try
 		{
-			new TestBuilder().process(false);
+            new TestBuilder().process(false);
 		}
 		catch(InterruptedException e)
 		{

src/main/resources/speiger/assets/collections/templates/collections/AbstractCollection.template

@@ -27,9 +27,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) {
 		boolean modified = false;
-		for(KEY_TYPE e : c) {
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();modified |= add(iter.NEXT()));
-			modified |= add(e);
-		}
 		return modified;
 	}
 	
@@ -49,7 +47,7 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	 */
 	@Override
 	public boolean contains(KEY_TYPE e) {
-		for(KEY_TYPE entry : this) { if(EQUALS(entry, e)) return true; }
+		for(ITERATOR KEY_GENERIC_TYPE iter = iterator();iter.hasNext();) { if(EQUALS(iter.NEXT(), e)) return true; }
 		return false;
 	}
 	
@@ -75,8 +73,8 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean containsAll(COLLECTION KEY_GENERIC_TYPE c) {
 		Objects.requireNonNull(c);
-		for(KEY_TYPE e : c)
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();)
-			if(!contains(e))
+			if(!contains(iter.NEXT()))
 				return false;
 		return true;
 	}
@@ -107,8 +105,8 @@ public abstract class ABSTRACT_COLLECTION KEY_GENERIC_TYPE extends AbstractColle
 	@Override
 	public boolean containsAny(COLLECTION KEY_GENERIC_TYPE c) {
 		Objects.requireNonNull(c);
-		for(KEY_TYPE e : c) 
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();) 
-			if(contains(e))
+			if(contains(iter.NEXT()))
 				return true;
 		return false;
 	}

src/main/resources/speiger/assets/collections/templates/lists/AbstractList.template

@@ -43,8 +43,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	@Override
 	public boolean addAll(COLLECTION KEY_GENERIC_TYPE c) {
 		boolean modified = false;
-		for(KEY_TYPE e : c)
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();modified |= add(iter.NEXT()));
-			modified |= add(e);
 		return modified;
 	}
 	
@@ -56,8 +55,7 @@ public abstract class ABSTRACT_LIST KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
 	@Override
 	public boolean addAll(LIST KEY_GENERIC_TYPE c) {
 		boolean modified = false;
-		for(KEY_TYPE e : c)
+		for(ITERATOR KEY_GENERIC_TYPE iter = c.iterator();iter.hasNext();modified |= add(iter.NEXT()));
-			modified |= add(e);
 		return modified;
 	}
 	

src/main/resources/speiger/assets/collections/templates/lists/ArrayList.template

@@ -65,11 +65,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	 * Creates a new ArrayList with a Empty array.
 	 */
 	public ARRAY_LIST() {
-#if TYPE_OBJECT
+		data = EMPTY_KEY_ARRAY;
-		data = (KEY_TYPE[])ARRAYS.EMPTY_ARRAY;
-#else
-		data = ARRAYS.EMPTY_ARRAY;
-#endif
 	}
 	
 	/**
@@ -880,11 +876,7 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
 	public boolean trim(int size) {
 		if(size > size() || size() == data.length) return false;
 		int value = Math.max(size, size());
-#if TYPE_OBJECT
+		data = value == 0 ? EMPTY_KEY_ARRAY : Arrays.copyOf(data, value);
-		data = value == 0 ? (KEY_TYPE[])ARRAYS.EMPTY_ARRAY : Arrays.copyOf(data, value);
-#else
-		data = value == 0 ? ARRAYS.EMPTY_ARRAY : Arrays.copyOf(data, value);
-#endif
 		return true;
 	}
 	

src/main/resources/speiger/assets/collections/templates/queues/ArrayFIFOQueue.template

@@ -0,0 +1,275 @@
+package speiger.src.collections.PACKAGE.queues;
+
+#if TYPE_OBJECT
+import java.util.Arrays;
+import java.util.Comparator;
+#endif
+import java.util.NoSuchElementException;
+
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#endif
+import speiger.src.collections.utils.ITrimmable;
+
+public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE implements PRIORITY_DEQUEUE KEY_GENERIC_TYPE, ITrimmable
+{
+    private static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8;
+	public static final int MIN_CAPACITY = 4;
+	protected transient KEY_TYPE[] array;
+	protected int first;
+	protected int last;
+	
+	public ARRAY_FIFO_QUEUE(KEY_TYPE[] values) {
+		this(values, 0, values.length);
+	}
+
+	public ARRAY_FIFO_QUEUE(KEY_TYPE[] values, int size) {
+		this(values, 0, size);
+	}
+
+	public ARRAY_FIFO_QUEUE(KEY_TYPE[] values, int offset, int size) {
+		if (values.length < size) throw new IllegalArgumentException("Initial array (" + values.length + ") is smaller then the expected size (" + size + ")");
+		if(values.length <= 0) values = NEW_KEY_ARRAY(1);
+		array = values;
+		first = offset;
+		last = (offset + size) % array.length;
+		if(array.length == size) expand();
+	}
+	
+	public ARRAY_FIFO_QUEUE(int capacity) {
+		if (capacity < 0) throw new IllegalArgumentException("Initial capacity (" + capacity + ") is negative");
+		array = NEW_KEY_ARRAY(Math.max(1, capacity));
+	}
+
+	public ARRAY_FIFO_QUEUE() {
+		this(MIN_CAPACITY);
+	}
+	
+	@Override
+	public ITERATOR KEY_GENERIC_TYPE iterator() {
+		return new Iter();
+	}
+	
+	@Override
+	public int size() {
+		final int apparentLength = last - first;
+		return apparentLength >= 0 ? apparentLength : array.length + apparentLength;
+	}
+	
+	@Override
+	public void clear() {
+#if TYPE_OBJECT
+		Arrays.fill(array, null);
+#endif
+		first = last = 0;
+	}
+	
+	@Override
+	public void ENQUEUE(KEY_TYPE e) {
+		array[last] = e;
+		last = ++last % array.length;
+		if(last == first) expand();
+	}
+	
+	@Override
+	public void ENQUEUE_FIRST(KEY_TYPE e) {
+		if(first == 0) first = array.length;
+		array[--first] = e;
+		if(first == last) expand();
+	}
+	
+	@Override
+	public KEY_TYPE DEQUEUE() {
+		if(first == last) throw new NoSuchElementException();
+		KEY_TYPE data = array[first];
+#if TYPE_OBJECT
+		array[first] = null;
+#endif
+		first = ++first % array.length;
+		reduce();
+		return data;
+	}
+	
+	@Override
+	public KEY_TYPE DEQUEUE_LAST() {
+		if(first == last) throw new NoSuchElementException();
+		if(last == 0) last = array.length;
+		KEY_TYPE data = array[--last];
+#if TYPE_OBJECT
+		array[last] = null;
+#endif
+		reduce();
+		return data;
+	}
+	
+	@Override
+	public KEY_TYPE PEEK(int index) {
+		if(first == last || index < 0 || index > size()) throw new NoSuchElementException();
+		return array[(first + index) % array.length];
+	}
+	
+	@Override
+	public boolean REMOVE(KEY_TYPE e) {
+		if(first == last) return false;
+		for(int i = 0,m=size();i<m;i++) {
+			int index = (first + i) % array.length;
+			if(e == array[index])
+				return removeIndex(index);
+		}
+		return false;
+	}
+	
+	@Override
+	public boolean REMOVE_LAST(KEY_TYPE e) {
+		if(first == last) return false;
+		if(first == last) return false;
+		for(int i = size()-1;i>=0;i--) {
+			int index = (first + i) % array.length;
+			if(e == array[index])
+				return removeIndex(index);
+		}
+		return false;
+	}
+	
+	protected boolean removeIndex(int index) {
+		if(first >= last ? index < first && index > last : index < first || index > last) return false;
+		if(index == first) {
+#if TYPE_OBJECT
+			array[first] = null;
+#endif
+			first++;
+		}
+		else if(index == last) {
+			last--;
+#if TYPE_OBJECT
+			array[last] = null;
+#endif
+		}
+		else if(index > last) {
+			System.arraycopy(array, first, array, first+1, (index - first));
+#if TYPE_OBJECT
+			array[first] = null;
+#endif
+			first = ++first % array.length;
+		}
+		else if(index < first) {
+			System.arraycopy(array, index+1, array, index, (last - index) - 1);
+#if TYPE_OBJECT
+			array[last] = null;
+#endif
+			if(--last < 0) last += array.length;
+		}
+		else {
+			if(index - first < last - index) {
+				System.arraycopy(array, first, array, first+1, (index - first));
+#if TYPE_OBJECT
+				array[first] = null;
+#endif
+				first = ++first % array.length;
+			}
+			else {
+				System.arraycopy(array, index+1, array, index, (last - index) - 1);
+#if TYPE_OBJECT
+				array[last] = null;
+#endif
+				if(--last < 0) last += array.length;
+			}
+		}
+		reduce();
+		return true;
+	}
+	
+	@Override
+	public void onChanged() {}
+	
+	@Override
+	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() { return null; }
+	
+	@Override
+	public boolean trim(int size) {
+		int newSize = Math.max(size, size());
+		if(newSize >= array.length) return false;
+		KEY_TYPE[] newArray = NEW_KEY_ARRAY(newSize);
+		if(first <= last) System.arraycopy(array, first, newArray, 0, last - first);
+		else {
+			System.arraycopy(array, first, newArray, 0, array.length - first);
+			System.arraycopy(array, 0, newArray, array.length - first, last);
+		}
+		first = 0;
+		last = size();
+		array = newArray;
+		return true;
+	}
+	
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] input) {
+		if(input == null || input.length < size()) input = NEW_KEY_ARRAY(size());
+		if (first <= last) System.arraycopy(array, first, input, 0, last - first);
+		else {
+			System.arraycopy(array, first, input, 0, array.length - first);
+			System.arraycopy(array, 0, input, array.length - first, last);
+		}
+		return input;
+	}
+	
+#if !TYPE_OBJECT
+	@Override
+	public CLASS_TYPE[] toArray(CLASS_TYPE[] input) {
+		if(input == null || input.length < size()) input = NEW_CLASS_ARRAY(size());
+		if (first <= last) {
+			for(int i = 0,m=last-first;i<m;i++)
+				input[i] = KEY_TO_OBJ(array[first + i]);
+		}
+		else {
+			int offset = 0;
+			for(int i = 0,m=array.length-first;i<m;i++,offset++)
+				input[i] = KEY_TO_OBJ(array[first + i]);
+			for(int i = 0;i<last;i++)
+				input[offset+i] = KEY_TO_OBJ(array[i]);
+		}
+		return input;
+	}
+	
+#endif
+	protected void reduce() {
+		final int size = size();
+		if (array.length > MIN_CAPACITY && size <= array.length / 4) resize(size, array.length / 2);
+	}
+	
+	protected void expand() {
+		resize(array.length, (int)Math.min(MAX_ARRAY_SIZE, 2L * array.length));
+	}
+	
+	protected final void resize(int oldSize, int newSize) {
+		KEY_TYPE[] newArray = NEW_KEY_ARRAY(newSize);
+		if(first >= last) {
+			if(oldSize != 0)
+			{
+				System.arraycopy(array, first, newArray, 0, array.length - first);
+				System.arraycopy(array, 0, newArray, array.length - first, last);
+			}
+		}
+		else System.arraycopy(array, first, newArray, 0, last-first);
+		first = 0;
+		last = oldSize;
+		array = newArray;
+	}
+	
+	private class Iter implements ITERATOR KEY_GENERIC_TYPE
+	{
+		int index = first;
+		@Override
+		public boolean hasNext()
+		{
+			return index != last;
+		}
+
+		@Override
+		public KEY_TYPE NEXT() {
+			KEY_TYPE value = array[index];
+			removeIndex(index++);
+			return value;
+		}
+	}
+}

src/main/resources/speiger/assets/collections/templates/queues/ArrayPriorityQueue.template

@@ -0,0 +1,220 @@
+package speiger.src.collections.PACKAGE.queues;
+
+import java.util.Arrays;
+import java.util.NoSuchElementException;
+#if TYPE_OBJECT
+import java.util.Comparator;
+import java.util.Objects;
+#endif
+
+import speiger.src.collections.PACKAGE.collections.COLLECTION;
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#endif
+import speiger.src.collections.PACKAGE.utils.ARRAYS;
+
+public class ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_GENERIC_TYPE
+{
+	protected transient KEY_TYPE[] array = EMPTY_KEY_ARRAY;
+	protected int size;
+	protected int firstIndex = -1;
+	protected COMPARATOR KEY_SUPER_GENERIC_TYPE comparator;
+	
+	public ARRAY_PRIORITY_QUEUE() {
+		this(0, null);
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this(0, comp);
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		if(size > 0) array = NEW_KEY_ARRAY(size);
+		this.size = size;
+		comparator = comp;
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(KEY_TYPE[] array) {
+		this(array, array.length);
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(KEY_TYPE[] array, int size) {
+		this.array = Arrays.copyOf(array, size);
+		this.size = size;
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(KEY_TYPE[] array, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this(array, array.length, comp);
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(KEY_TYPE[] array, int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this.array = Arrays.copyOf(array, size);
+		this.size = size;
+		this.comparator = comp;
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(COLLECTION KEY_GENERIC_TYPE c) {
+		array = CAST_KEY_ARRAY c.TO_ARRAY();
+		size = c.size();
+	}
+	
+	public ARRAY_PRIORITY_QUEUE(COLLECTION KEY_GENERIC_TYPE c, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		array = CAST_KEY_ARRAY c.TO_ARRAY();
+		size = c.size();
+		comparator = comp;
+	}
+	
+	public static GENERIC_BRACES ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array) { 
+		return wrap(array, array.length);
+	}
+	
+	public static GENERIC_BRACES ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, int size) {
+		ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new ARRAY_PRIORITY_QUEUEBRACES();
+		queue.array = array;
+		queue.size = size;
+		return queue;
+	}
+	
+	public static GENERIC_BRACES ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		return wrap(array, array.length, comp);
+	}
+	
+	public static GENERIC_BRACES ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		ARRAY_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new ARRAY_PRIORITY_QUEUEBRACES(comp);
+		queue.array = array;
+		queue.size = size;
+		return queue;
+	}
+	
+	@Override
+	public void ENQUEUE(KEY_TYPE e) {
+		if(size == array.length) array = Arrays.copyOf(array, size+1);
+		if(firstIndex != -1){
+			int compare = comparator == null ? COMPARE_TO_KEY(e, array[firstIndex]) : comparator.compare(e, array[firstIndex]);
+			if(compare < 0) firstIndex = size;
+			else if(compare > 0) firstIndex = -1;
+		}
+		array[size++] = e;
+	}
+	
+	@Override
+	public KEY_TYPE DEQUEUE() {
+		if(size <= 0) throw new NoSuchElementException();
+		int index = findFirstIndex();
+		KEY_TYPE value = array[index];
+		if(index != --size) System.arraycopy(array, index+1, array, index, size - index);
+#if TYPE_OBJECT
+		array[size] = null;
+#endif
+		firstIndex = -1;
+		return value;
+	}
+	
+	@Override
+	public KEY_TYPE PEEK(int index) {
+		if(index < 0 || index >= size) throw new NoSuchElementException();
+		return array[index];
+	}
+	
+	@Override
+	public boolean REMOVE(KEY_TYPE e) {
+		for(int i = 0;i<size;i++)
+			if(EQUALS(e, array[i])) return removeIndex(i);
+		return false;
+	}
+	
+	@Override
+	public boolean REMOVE_LAST(KEY_TYPE e) {
+		for(int i = size-1;i>=0;i--)
+			if(EQUALS(e, array[i])) return removeIndex(i);
+		return false;
+	}
+	
+	protected boolean removeIndex(int index) {
+		if(index != --size) System.arraycopy(array, index+1, array, index, size - index);
+#if TYPE_OBJECT
+		array[size] = null;
+#endif
+		if(index == firstIndex) firstIndex = -1;
+		else if(index >= firstIndex) firstIndex--;
+		return true;
+	}
+	
+	@Override
+	public void onChanged() {
+		firstIndex = -1;
+	}
+	
+	@Override
+	public int size() {
+		return size;
+	}
+	
+	@Override
+	public void clear() {
+#if TYPE_OBJECT
+		Arrays.fill(array, null);
+#endif
+		size = 0;
+	}
+	
+	@Override
+	public ITERATOR KEY_GENERIC_TYPE iterator() {
+		return new Iter();
+	}
+	
+	@Override
+	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() {
+		return comparator;
+	}
+	
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] input) {
+		if(input == null || input.length < size()) input = NEW_KEY_ARRAY(size());
+		System.arraycopy(array, 0, input, 0, size());
+		return input;
+	}
+	
+#if !TYPE_OBJECT
+	@Override
+	public CLASS_TYPE[] toArray(CLASS_TYPE[] input) {
+		if(input == null || input.length < size()) input = new CLASS_TYPE[size()];
+		for(int i = 0;i<size;i++) input[i] = KEY_TO_OBJ(array[i]);
+		return input;
+	}
+	
+#endif
+	protected int findFirstIndex() {
+		if(firstIndex == -1) {
+			int index = size-1;
+			KEY_TYPE value = array[index];
+			if(comparator == null) {
+				for(int i = index;firstIndex == -1 && i>=0;i--) {
+					if(COMPARE_TO_KEY(array[i], value) < 0) 
+						value = array[index = i];
+				}
+			}
+			else {
+				for(int i = index;firstIndex == -1 && i>=0;i--) {
+					if(comparator.compare(array[i], value) < 0) 
+						value = array[index = i];
+				}
+			}
+			firstIndex = index;
+		}
+		return firstIndex;
+	}
+	
+	public class Iter implements ITERATOR KEY_GENERIC_TYPE {
+		@Override
+		public boolean hasNext() {
+			return !isEmpty();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			return DEQUEUE();
+		}
+	}
+}

src/main/resources/speiger/assets/collections/templates/queues/HeapPriorityQueue.template

@@ -0,0 +1,199 @@
+package speiger.src.collections.PACKAGE.queues;
+
+import java.util.Arrays;
+import java.util.NoSuchElementException;
+#if TYPE_OBJECT
+import java.util.Comparator;
+import java.util.Objects;
+#endif
+
+import speiger.src.collections.PACKAGE.collections.COLLECTION;
+import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !TYPE_OBJECT
+import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+#endif
+import speiger.src.collections.PACKAGE.utils.ARRAYS;
+
+public class HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE implements PRIORITY_QUEUE KEY_GENERIC_TYPE
+{
+	protected transient KEY_TYPE[] array = EMPTY_KEY_ARRAY;
+	protected int size;
+	protected COMPARATOR KEY_SUPER_GENERIC_TYPE comparator;
+	
+	public HEAP_PRIORITY_QUEUE() {
+		this(0, null);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this(0, comp);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		if(size > 0) array = NEW_KEY_ARRAY(size);
+		this.size = size;
+		comparator = comp;
+	}
+	
+	public HEAP_PRIORITY_QUEUE(KEY_TYPE[] array) {
+		this(array, array.length);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(KEY_TYPE[] array, int size) {
+		this.array = Arrays.copyOf(array, size);
+		this.size = size;
+		ARRAYS.heapify(array, size, null);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(KEY_TYPE[] array, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this(array, array.length, comp);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(KEY_TYPE[] array, int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		this.array = Arrays.copyOf(array, size);
+		this.size = size;
+		comparator = comp;
+		ARRAYS.heapify(array, size, comp);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(COLLECTION KEY_GENERIC_TYPE c) {
+		array = CAST_KEY_ARRAY c.TO_ARRAY();
+		size = c.size();
+		ARRAYS.heapify(array, size, null);
+	}
+	
+	public HEAP_PRIORITY_QUEUE(COLLECTION KEY_GENERIC_TYPE c, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		array = CAST_KEY_ARRAY c.TO_ARRAY();
+		size = c.size();
+		comparator = comp;
+		ARRAYS.heapify(array, size, comp);
+	}
+	
+	public static GENERIC_BRACES HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array) { 
+		return wrap(array, array.length);
+	}
+	
+	public static GENERIC_BRACES HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, int size) {
+		HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new HEAP_PRIORITY_QUEUEBRACES();
+		queue.array = array;
+		queue.size = size;
+		ARRAYS.heapify(array, size, null);
+		return queue;
+	}
+	
+	public static GENERIC_BRACES HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		return wrap(array, array.length, comp);
+	}
+	
+	public static GENERIC_BRACES HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE wrap(KEY_TYPE[] array, int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		HEAP_PRIORITY_QUEUE KEY_GENERIC_TYPE queue = new HEAP_PRIORITY_QUEUEBRACES(comp);
+		queue.array = array;
+		queue.size = size;
+		ARRAYS.heapify(array, size, comp);
+		return queue;
+	}
+	
+	@Override
+	public int size() {
+		return size;
+	}
+	
+	@Override
+	public void clear() {
+#if TYPE_OBJECT
+		Arrays.fill(array, null);
+#endif
+		size = 0;
+	}
+	
+	@Override
+	public ITERATOR KEY_GENERIC_TYPE iterator() {
+		return new Iter();
+	}
+	
+	@Override
+	public void ENQUEUE(KEY_TYPE e) {
+		if(size == array.length) array = Arrays.copyOf(array, size + 1);
+		array[size++] = e;
+		ARRAYS.shiftUp(array, size-1, comparator);
+	}
+	
+	@Override
+	public KEY_TYPE DEQUEUE() {
+		if(size <= 0) throw new NoSuchElementException();
+		KEY_TYPE value = array[0];
+		array[0] = array[--size];
+#if TYPE_OBJECT
+		array[size] = null;
+#endif
+		if(size != 0) ARRAYS.shiftDown(array, size, 0, comparator);
+		return value;
+	}
+	
+	@Override
+	public KEY_TYPE PEEK(int index) {
+		if(index < 0 || index >= size) throw new NoSuchElementException();
+		return array[index];
+	}
+	
+	@Override
+	public boolean REMOVE(KEY_TYPE e) {
+		for(int i = 0;i<size;i++)
+			if(EQUALS(e, array[i])) return removeIndex(i);
+		return false;
+	}
+	
+	@Override
+	public boolean REMOVE_LAST(KEY_TYPE e) {
+		for(int i = size-1;i>=0;i--)
+			if(EQUALS(e, array[i])) return removeIndex(i);
+		return false;
+	}
+	
+	protected boolean removeIndex(int index) {
+		array[index] = array[--size];
+#if TYPE_OBJECT
+		array[size] = null;
+#endif
+		if(size != index) ARRAYS.shiftDown(array, size, index, comparator);
+		return true;
+	}
+	
+	@Override
+	public void onChanged() {
+		if(size <= 0) return;
+		ARRAYS.shiftDown(array, size, 0, comparator);
+	}
+	
+	@Override
+	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator() {
+		return comparator;
+	}
+	
+	@Override
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] input) {
+		if(input == null || input.length < size()) input = NEW_KEY_ARRAY(size());
+		System.arraycopy(array, 0, input, 0, size());
+		return input;
+	}
+	
+#if !TYPE_OBJECT
+	@Override
+	public CLASS_TYPE[] toArray(CLASS_TYPE[] input) {
+		if(input == null || input.length < size()) input = new CLASS_TYPE[size()];
+		for(int i = 0;i<size;i++) input[i] = KEY_TO_OBJ(array[i]);
+		return input;
+	}
+	
+#endif
+	public class Iter implements ITERATOR KEY_GENERIC_TYPE {
+		@Override
+		public boolean hasNext() {
+			return !isEmpty();
+		}
+		
+		@Override
+		public KEY_TYPE NEXT() {
+			return DEQUEUE();
+		}
+	}
+}

src/main/resources/speiger/assets/collections/templates/queues/PriorityDequeue.template

@@ -0,0 +1,12 @@
+package speiger.src.collections.PACKAGE.queues;
+
+public interface PRIORITY_DEQUEUE KEY_GENERIC_TYPE extends PRIORITY_QUEUE KEY_GENERIC_TYPE
+{
+	public void ENQUEUE_FIRST(KEY_TYPE e);
+	public KEY_TYPE DEQUEUE_LAST();
+	
+#if !TYPE_OBJECT
+	public default void enqueueFirst(CLASS_TYPE e) { ENQUEUE_FIRST(OBJ_TO_KEY(e)); }
+	public default CLASS_TYPE dequeueLast() { return KEY_TO_OBJ(DEQUEUE_LAST()); }
+#endif
+}

src/main/resources/speiger/assets/collections/templates/queues/PriorityQueue.template

@@ -0,0 +1,58 @@
+package speiger.src.collections.PACKAGE.queues;
+
+#if TYPE_OBJECT
+import java.util.Comparator;
+#else
+import speiger.src.collections.PACKAGE.collections.ITERABLE;
+import speiger.src.collections.PACKAGE.functions.COMPARATOR;
+import speiger.src.collections.objects.queues.ObjectPriorityQueue;
+#endif
+
+#if TYPE_OBJECT
+public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends Iterable<KEY_TYPE>
+#else
+public interface PRIORITY_QUEUE KEY_GENERIC_TYPE extends ObjectPriorityQueue<CLASS_TYPE>, ITERABLE KEY_GENERIC_TYPE
+#endif
+{
+#if TYPE_OBJECT
+	public default boolean isEmpty() { return size() <= 0; }
+	public int size();
+	public void clear();
+	
+#endif
+	public void ENQUEUE(KEY_TYPE e);
+	public KEY_TYPE DEQUEUE();
+	
+	public KEY_TYPE PEEK(int index);
+	public default KEY_TYPE FIRST_KEY() { return peek(0); }
+	public default KEY_TYPE LAST_KEY() { return peek(size()-1); }
+	
+	public boolean REMOVE(KEY_TYPE e);
+	public boolean REMOVE_LAST(KEY_TYPE e);
+	
+	public void onChanged();
+	
+	@PrimitiveOverride
+	public COMPARATOR KEY_SUPER_GENERIC_TYPE comparator();
+	
+	public default KEY_TYPE[] TO_ARRAY() { return TO_ARRAY(NEW_KEY_ARRAY(size())); }
+	public KEY_TYPE[] TO_ARRAY(KEY_TYPE[] input);
+	
+#if !TYPE_OBJECT
+	public default void enqueue(CLASS_TYPE e) { ENQUEUE(OBJ_TO_KEY(e)); }
+	public default CLASS_TYPE dequeue() { return KEY_TO_OBJ(DEQUEUE()); }
+	
+	public default CLASS_TYPE peek(int index) { return KEY_TO_OBJ(PEEK(index)); }
+	public default CLASS_TYPE first() { return peek(0); }
+	public default CLASS_TYPE last() { return peek(size()-1); }
+	
+	public default boolean remove(CLASS_TYPE e) { return REMOVE(OBJ_TO_KEY(e)); }
+	public default boolean removeLast(CLASS_TYPE e) { return REMOVE_LAST(OBJ_TO_KEY(e)); }
+	
+	@Deprecated
+	public default CLASS_TYPE[] toArray() { return toArray(new CLASS_TYPE[size()]); }
+	@Deprecated
+	public CLASS_TYPE[] toArray(CLASS_TYPE[] input);
+	
+#endif
+}

src/main/resources/speiger/assets/collections/templates/sets/AbstractSet.template

@@ -14,11 +14,7 @@ public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION
     	int hashCode = 1;
     	ITERATOR KEY_GENERIC_TYPE i = iterator();
     	while(i.hasNext())
-#if TYPE_OBJECT
-			hashCode = 31 * hashCode + i.next().hashCode();
-#else
     		hashCode = 31 * hashCode + TO_HASH(i.NEXT());
-#endif
     	return hashCode;
 	}
 	

src/main/resources/speiger/assets/collections/templates/sets/ArraySet.template

@@ -23,11 +23,7 @@ public class ARRAY_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE im
 	protected int size = 0;
 	
 	public ARRAY_SET() {
-#if TYPE_OBJECT
+		data = EMPTY_KEY_ARRAY;
-		data = (KEY_TYPE[])ARRAYS.EMPTY_ARRAY;
-#else
-		data = ARRAYS.EMPTY_ARRAY;
-#endif
 	}
 	
 	public ARRAY_SET(int capacity) {

src/main/resources/speiger/assets/collections/templates/utils/Arrays.template

@@ -100,12 +100,70 @@ public class ARRAYS
 	 * @param length the lenght the array should be.
 	 * @return a Array with the requested type and length
 	 */
-	public static KEY_GENERIC_TYPE KEY_TYPE[] newArray(Class<KEY_TYPE> clz, int length) {
+	public static GENERIC_BRACES KEY_TYPE[] newArray(Class<KEY_TYPE> clz, int length) {
 		if(clz == Object.class) return (KEY_TYPE[])new Object[length];
 		return (KEY_TYPE[]) java.lang.reflect.Array.newInstance(clz, length);
 	}
 	
 #endif
+	public static GENERIC_BRACES int shiftDown(KEY_TYPE[] data, int size, int index, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		int half = size >>> 1;
+		KEY_TYPE value = data[index];
+		if(comp != null) {
+			while(index < half) {
+				int child = (index << 1) + 1;
+				KEY_TYPE childValue = data[child];
+				int right = child+1;
+				if(right < size && comp.compare(data[right], childValue) < 0) childValue = data[child = right];
+				if(comp.compare(value, childValue) <= 0) break;
+				data[index] = childValue;
+				index = child;
+			}
+		}
+		else {
+			while(index < half) {
+				int child = (index << 1) + 1;
+				KEY_TYPE childValue = data[child];
+				int right = child+1;
+				if(right < size && COMPARE_TO_KEY(data[right], childValue) < 0) childValue = data[child = right];
+				if(COMPARE_TO_KEY(value, childValue) <= 0) break;
+				data[index] = childValue;
+				index = child;
+			}
+		}
+		data[index] = value;
+		return index;
+	}
+	
+	public static GENERIC_BRACES int shiftUp(KEY_TYPE[] data, int index, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		KEY_TYPE value = data[index];
+		if(comp != null) {
+			while(index > 0) {
+				int parent = (index - 1) >>> 1;
+				KEY_TYPE parentValue = data[parent];
+				if(comp.compare(value, parentValue) >= 0) break;
+				data[index] = parentValue;
+				index = parent;
+			}
+		}
+		else {
+			while(index > 0) {
+				int parent = (index - 1) >>> 1;
+				KEY_TYPE parentValue = data[parent];
+				if(COMPARE_TO_KEY(value, parentValue) >= 0) break;
+				data[index] = parentValue;
+				index = parent;
+			}
+		}
+		data[index] = value;
+		return index;
+	}
+	
+	public static GENERIC_BRACES KEY_TYPE[] heapify(KEY_TYPE[] data, int size, COMPARATOR KEY_SUPER_GENERIC_TYPE comp) {
+		for(int i = (size >>> 1) - 1;i>=0;shiftDown(data, size, i--, comp));
+		return data;
+	}
+	
 	public static GENERIC_BRACES KEY_TYPE[] shuffle(KEY_TYPE[] array) {
 		return shuffle(array, SanityChecks.getRandom());
 	}

src/test/java/speiger/src/collections/ints/base/BaseIntPriorityQueueTest.java

@@ -0,0 +1,114 @@
+package speiger.src.collections.ints.base;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import java.util.EnumSet;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import speiger.src.collections.ints.queues.IntPriorityQueue;
+import speiger.src.collections.tests.IterableTest;
+import speiger.src.collections.tests.PriorityQueueTest;
+
+public abstract class BaseIntPriorityQueueTest extends BaseIntIterableTest
+{
+	@Override
+	protected abstract IntPriorityQueue create(int[] data);
+	@Override
+	protected EnumSet<IterableTest> getValidIterableTests() { return EnumSet.of(IterableTest.FOR_EACH, IterableTest.ITERATOR_FOR_EACH, IterableTest.ITERATOR_LOOP, IterableTest.ITERATOR_SKIP); }
+	protected EnumSet<PriorityQueueTest> getValidPriorityQueueTests() { return EnumSet.allOf(PriorityQueueTest.class); }
+	
+	@Test
+	public void testEnqueue() {
+		if(getValidPriorityQueueTests().contains(PriorityQueueTest.IN_OUT)) {
+			IntPriorityQueue queue = create(EMPTY_ARRAY);
+			for(int i = 0;i<100;i++) {
+				queue.enqueueInt(i);
+				Assert.assertEquals(i, queue.lastInt());
+			}
+			for(int i = 0;i<100;i++) {
+				Assert.assertEquals(i, queue.firstInt());
+				Assert.assertEquals(99, queue.lastInt());
+				Assert.assertEquals(i, queue.dequeueInt());
+			}
+		}
+	}
+	
+	@Test
+	public void testPeek() {
+		if(getValidPriorityQueueTests().contains(PriorityQueueTest.PEEK)) {
+			IntPriorityQueue queue = create(EMPTY_ARRAY);
+			for(int i = 0;i<100;i++) {
+				queue.enqueueInt(i);
+				Assert.assertEquals(i, queue.lastInt());
+			}
+			for(int i = 0;i<100;i++) {
+				assertEquals(i, queue.peekInt(i));
+			}
+		}
+	}
+	
+	@Test
+	public void testRemove() {
+		if(getValidPriorityQueueTests().contains(PriorityQueueTest.REMOVE)) {
+			IntPriorityQueue queue = create(EMPTY_ARRAY);
+			for(int i = 0;i<100;i++) {
+				queue.enqueueInt(i);
+				Assert.assertEquals(i, queue.lastInt());
+			}
+			queue.removeInt(40);
+			for(int i = 0;i<99;i++) {
+				if(i >= 40) assertEquals(i + 1, queue.dequeueInt());
+				else assertEquals(i, queue.dequeueInt());
+			}
+			for(int i = 0;i<100;i++) {
+				queue.enqueueInt(i);
+				Assert.assertEquals(i, queue.lastInt());
+			}
+			queue.removeLastInt(40);
+			for(int i = 0;i<99;i++) {
+				if(i >= 40) assertEquals(i + 1, queue.dequeueInt());
+				else assertEquals(i, queue.dequeueInt());
+			}
+		}
+	}
+	
+	@Test
+	@SuppressWarnings("deprecation")
+	public void testToArray() {
+		if(getValidPriorityQueueTests().contains(PriorityQueueTest.TO_ARRAY)) {
+			IntPriorityQueue q = create(EMPTY_ARRAY);
+			Integer[] ref = new Integer[100];
+			Integer[] shiftArray = new Integer[100];
+			int[] primRef = new int[100];
+			int[] shiftPrimArray = new int[100];
+			for(int i = 0; i < 100; i++) {
+				q.enqueue(i);
+				assertEquals(i, q.lastInt());
+				ref[i] = Integer.valueOf(i);
+				primRef[i] = i;
+				shiftPrimArray[(i+80) % 100] = i;
+				shiftArray[(i+80) % 100] = Integer.valueOf(i);
+			}
+			assertArrayEquals(q.toArray(), ref);
+			assertArrayEquals(q.toArray(new Integer[100]), ref);
+			assertArrayEquals(q.toArray(null), ref);
+			assertArrayEquals(q.toIntArray(), primRef);
+			assertArrayEquals(q.toIntArray(new int[100]), primRef);
+			assertArrayEquals(q.toIntArray(null), primRef);
+			IntPriorityQueue other = create(q.toIntArray());
+			for(int i = 0;i<100;i++) {
+				assertEquals(other.peekInt(i), primRef[i]);
+			}
+			for(int i = 0;i<20;i++) {
+				other.dequeueInt();
+				other.enqueue(i);
+			}
+			assertArrayEquals(other.toIntArray(), shiftPrimArray);
+			assertArrayEquals(other.toIntArray(new int[100]), shiftPrimArray);
+			assertArrayEquals(other.toArray(), shiftArray);
+		}
+	}
+}

src/test/java/speiger/src/collections/ints/queues/IntArrayFIFOQueueTests.java

@@ -0,0 +1,9 @@
+package speiger.src.collections.ints.queues;
+
+import speiger.src.collections.ints.base.BaseIntPriorityQueueTest;
+
+public class IntArrayFIFOQueueTests extends BaseIntPriorityQueueTest
+{
+	@Override
+	protected IntPriorityQueue create(int[] data){return new IntArrayFIFOQueue(data);}
+}

src/test/java/speiger/src/collections/tests/PriorityQueueTest.java

@@ -0,0 +1,9 @@
+package speiger.src.collections.tests;
+
+public enum PriorityQueueTest
+{
+	IN_OUT,
+	PEEK,
+	REMOVE,
+	TO_ARRAY,
+}