Refactor mark related classes.

- Mark is an abstract class which containing its name and type
- Single Mark is a sub class of Mark which containing only one GPS location
- Gate Mark is a sub class of Mark which containing two Single Marks

#refactor #fix #story[10] #story[11] #story[12]

src/main/java/seng302/models/mark/Mark.java

@@ -0,0 +1,37 @@
+package seng302.models.mark;
+
+/**
+ * An abstract class to represent general marks
+ * Created by Haoming Yin (hyi25) on 17/3/17.
+ */
+public abstract class Mark {
+
+    private String name;
+    private MarkType markType;
+
+    /**
+     * Create a mark instance by passing its name and type
+     * @param name the name of the mark
+     * @param markType the type of mark. either GATE_MARK or SINGLE_MARK.
+     */
+    public Mark (String name, MarkType markType) {
+        this.name = name;
+        this.markType = markType;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public MarkType getMarkType() {
+        return markType;
+    }
+
+    public void setMarkType(MarkType markType) {
+        this.markType = markType;
+    }
+}