Added ,serializable and associated serialVersionUID as per issue #113

Author: jateeter

src/main/java/org/energyos/espi/common/domain/IdentifiedObject.java

@@ -24,6 +24,7 @@
 
 package org.energyos.espi.common.domain;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.GregorianCalendar;
 import java.util.List;
@@ -82,8 +83,11 @@
         ReadingType.class
 })
 @MappedSuperclass
-public class IdentifiedObject extends Resource implements Linkable {
+public class IdentifiedObject extends Resource implements Linkable, Serializable {
 
+    @XmlTransient
+	private static final long serialVersionUID = -5263186855332223773L;
+
 	public interface ResourceEnumClass {
 		   ResourceEnum getEnumType();
 	}

src/main/java/org/energyos/espi/common/models/atom/LinkType.java

@@ -24,11 +24,14 @@
 
 package org.energyos.espi.common.models.atom;
 
+import java.io.Serializable;
+
 import javax.persistence.Embeddable;
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlSchemaType;
+import javax.xml.bind.annotation.XmlTransient;
 
 
 /**
@@ -58,9 +61,12 @@
  */
 @XmlAccessorType(XmlAccessType.FIELD)
 @Embeddable
-public class LinkType {
+public class LinkType implements Serializable {
 
-    public static final String SELF = "self";
+    @XmlTransient
+	private static final long serialVersionUID = 528461832553643471L;
+	
+	public static final String SELF = "self";
     public static final String UP = "up";
     public static final String RELATED = "related";
     public static final String HREF = "href";