REPO-1302: Retrieve list of group members

- added group members api
   - fixed order by issue when using post processing ordering by id

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@133574 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/rest/api/model/GroupMember.java

@@ -0,0 +1,116 @@
+/*
+ * #%L
+ * Alfresco Remote API
+ * %%
+ * Copyright (C) 2005 - 2016 Alfresco Software Limited
+ * %%
+ * This file is part of the Alfresco software. 
+ * If the software was purchased under a paid Alfresco license, the terms of 
+ * the paid license agreement will prevail.  Otherwise, the software is 
+ * provided under the following open source license terms:
+ * 
+ * Alfresco 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 Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ * #L%
+ */
+package org.alfresco.rest.api.model;
+
+import org.alfresco.rest.framework.resource.UniqueId;
+
+/**
+ * Represents a group member.
+ * 
+ * @author cturlica
+ *
+ */
+public class GroupMember implements Comparable<GroupMember>
+{
+
+    private String id; // group id (aka authority name)
+    private String displayName;
+    private String memberType;
+
+    @UniqueId
+    public String getId()
+    {
+        return id;
+    }
+
+    public void setId(String id)
+    {
+        this.id = id;
+    }
+
+    public String getDisplayName()
+    {
+        return displayName;
+    }
+
+    public void setDisplayName(String displayName)
+    {
+        this.displayName = displayName;
+    }
+
+    public String getMemberType()
+    {
+        return memberType;
+    }
+
+    public void setMemberType(String memberType)
+    {
+        this.memberType = memberType;
+    }
+
+    @Override
+    public boolean equals(Object obj)
+    {
+        if (this == obj)
+        {
+            return true;
+        }
+
+        if (obj == null)
+        {
+            return false;
+        }
+
+        if (getClass() != obj.getClass())
+        {
+            return false;
+        }
+
+        GroupMember other = (GroupMember) obj;
+        return id.equals(other.id);
+    }
+
+    @Override
+    public int compareTo(GroupMember group)
+    {
+        return id.compareTo(group.getId());
+    }
+
+    @Override
+    public int hashCode()
+    {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((id == null) ? 0 : id.hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString()
+    {
+        return "GroupMember [id=" + id + ", displayName=" + displayName + ", memberType=" + memberType + "]";
+    }
+}