diff java/src/uk/ac/qmul/eecs/ccmi/utils/Pair.java @ 0:9418ab7b7f3f

Initial import

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/src/uk/ac/qmul/eecs/ccmi/utils/Pair.java	Fri Dec 16 17:35:51 2011 +0000
@@ -0,0 +1,69 @@
+/*  
+ CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
+  
+ Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/  
+
+package uk.ac.qmul.eecs.ccmi.utils;
+
+/**
+ * 
+ * A Pair of objects.
+ *
+ * @param <T1> The first item type 
+ * @param <T2> The second item type
+ */
+public class Pair<T1,T2> {
+	public Pair(T1 first, T2 second){
+		this.first = first;
+		this.second = second;
+	}
+	
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + ((first == null) ? 0 : first.hashCode());
+		result = prime * result + ((second == null) ? 0 : second.hashCode());
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		@SuppressWarnings("rawtypes")
+		Pair other = (Pair) obj;
+		if (first == null) {
+			if (other.first != null)
+				return false;
+		} else if (!first.equals(other.first))
+			return false;
+		if (second == null) {
+			if (other.second != null)
+				return false;
+		} else if (!second.equals(other.second))
+			return false;
+		return true;
+	}
+
+	public T1 first;
+	public T2 second;
+}