Object name validator component

* Moved the component from the -user package to the -naming package

* Added a separate interface to the component

legacyworlds-server-interfaces/src/main/java/com/deepclone/lw/interfaces/naming/ObjectNameValidator.java

@@ -0,0 +1,55 @@
+package com.deepclone.lw.interfaces.naming;
+
+
+import com.deepclone.lw.cmd.ObjectNameError;
+
+
+
+/**
+ * Object name validator
+ * 
+ * <p>
+ * This interface corresponds to a component which can be used to "pre-validate" the names of
+ * objects (empires, map objects, fleets, etc...). It does not check for banned or duplicate names.
+ * 
+ * @author <a href="mailto:tseeker@legacyworlds.com">E. Benoît</a>
+ */
+public interface ObjectNameValidator
+{
+
+	/**
+	 * Validate a name using the component's defaults
+	 * 
+	 * <p>
+	 * Check the name's validity. The name must match the usual naming constraints (valid
+	 * characters, no sequences of white space, name starts with an alphabetic character) and its
+	 * length is checked against the component's default constraints.
+	 * 
+	 * @param name
+	 *            the name to validate
+	 * 
+	 * @return the validation error if one occurred, or <code>null</code> if the name is valid
+	 */
+	public ObjectNameError validate( String name );
+
+
+	/**
+	 * Validate a name using specific length constraints
+	 * 
+	 * <p>
+	 * Check the name's validity. The name must match the usual naming constraints (valid
+	 * characters, no sequences of white space, name starts with an alphabetic character) and its
+	 * length is checked against the specific constraints given as arguments.
+	 * 
+	 * @param name
+	 *            the name to validate
+	 * @param minLength
+	 *            the minimal accepted length
+	 * @param maxLength
+	 *            the maximal accepted length
+	 * 
+	 * @return the validation error if one occurred, or <code>null</code> if the name is valid
+	 */
+	public ObjectNameError validate( String name , int minLength , int maxLength );
+
+}