Added StringAttr.

The name of the class could be better.

src/main/java/com/sk89q/worldguard/region/StringAttr.java

@@ -0,0 +1,84 @@
+// $Id$
+/*
+ * This file is a part of WorldGuard.
+ * Copyright (c) sk89q <http://www.sk89q.com>
+ * Copyright (c) the WorldGuard team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * (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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package com.sk89q.worldguard.region;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+import org.apache.commons.lang.Validate;
+
+/**
+ * An attribute that stores string data.
+ */
+public class StringAttr extends Attribute {
+    
+    private String data;
+
+    /**
+     * No-arg constructor.
+     */
+    public StringAttr() {
+    }
+
+    /**
+     * Construct an instance and specify an attribute name.
+     * 
+     * @param name name of the attribute
+     */
+    public StringAttr(String name) {
+        super(name);
+    }
+
+    /**
+     * Get the text.
+     * 
+     * @return the text
+     */
+    public String getText() {
+        return data;
+    }
+
+    /**
+     * Set the stored text.
+     * 
+     * @param text the new text
+     */
+    public void setText(String text) {
+        Validate.notNull(text);
+        
+        this.data = text;
+    }
+
+    @Override
+    public void read(DataInputStream in, int len) throws IOException {
+        data = in.readUTF();
+    }
+
+    @Override
+    public void write(DataOutputStream out) throws IOException {
+        out.writeUTF(data);
+    }
+    
+    @Override
+    public String toString() {
+        return data;
+    }
+
+}