added view comparators

src/main/java/de/alpharogroup/collection/comparators/KeyMapPairKeyComparator.java

@@ -0,0 +1,55 @@
+/**
+ * The MIT License
+ *
+ * Copyright (C) 2015 Asterios Raptis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package de.alpharogroup.collection.comparators;
+
+import java.util.Comparator;
+
+import de.alpharogroup.collections.pairs.KeyMapPair;
+
+/**
+ * The class {@link KeyMapPairKeyComparator} compares {@linkplain KeyMapPair} objects over the key
+ * where the key have to implements the {@linkplain Comparable} interface.
+ *
+ * @param <K>
+ *            The type of the key.
+ * @param <MK>
+ *            the generic type of the map key.
+ * @param <MV>
+ *            the generic type of the map value.
+ */
+public class KeyMapPairKeyComparator<K extends Comparable<K>, MK, MV>
+	implements
+		Comparator<KeyMapPair<K, MK, MV>>
+{
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public int compare(final KeyMapPair<K, MK, MV> o1, final KeyMapPair<K, MK, MV> o2)
+	{
+		return o1.getKey().compareTo(o2.getKey());
+	}
+}

src/main/java/de/alpharogroup/collection/comparators/KeyValuePairKeyComparator.java

@@ -0,0 +1,53 @@
+/**
+ * The MIT License
+ *
+ * Copyright (C) 2015 Asterios Raptis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package de.alpharogroup.collection.comparators;
+
+import java.util.Comparator;
+
+import de.alpharogroup.collections.pairs.KeyValuePair;
+
+/**
+ * The class {@link KeyValuePairKeyComparator} compares {@linkplain KeyValuePair} objects over the
+ * key where the key have to implements the {@linkplain Comparable} interface.
+ *
+ * @param <K>
+ *            The generic type of the key
+ * @param <V>
+ *            The generic type of the value
+ */
+public class KeyValuePairKeyComparator<K extends Comparable<K>, V>
+	implements
+		Comparator<KeyValuePair<K, V>>
+{
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public int compare(final KeyValuePair<K, V> o1, final KeyValuePair<K, V> o2)
+	{
+		return o1.getKey().compareTo(o2.getKey());
+	}
+}

src/main/java/de/alpharogroup/collection/comparators/KeyValuesPairKeyComparator.java

@@ -0,0 +1,53 @@
+/**
+ * The MIT License
+ *
+ * Copyright (C) 2015 Asterios Raptis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package de.alpharogroup.collection.comparators;
+
+import java.util.Comparator;
+
+import de.alpharogroup.collections.pairs.KeyValuesPair;
+
+/**
+ * The class {@link KeyValuesPairKeyComparator} compares {@linkplain KeyValuesPair} objects over the
+ * key where the key have to implements the {@linkplain Comparable} interface.
+ *
+ * @param <K>
+ *            The generic type of the key
+ * @param <V>
+ *            The generic type of the value
+ */
+public class KeyValuesPairKeyComparator<K extends Comparable<K>, V>
+	implements
+		Comparator<KeyValuesPair<K, V>>
+{
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public int compare(final KeyValuesPair<K, V> o1, final KeyValuesPair<K, V> o2)
+	{
+		return o1.getKey().compareTo(o2.getKey());
+	}
+}

src/main/java/de/alpharogroup/collection/comparators/package.html

@@ -0,0 +1,11 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+  <head>
+    <title>
+      de.alpharogroup.comparators
+    </title>
+  </head>
+  <body>
+    This package contains common comparators
+  </body>
+</html>