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    <p>Below is a Generic DAO Class from one of my work, where I have implemented almost all basic queries in Objectify. It is actually a Generic Implementation of basic Objectify functions using Template Classes.</p> <pre><code>package com.myweb.common.dao; import static com.googlecode.objectify.ObjectifyService.ofy; import java.util.List; import com.googlecode.objectify.Key; import com.googlecode.objectify.ObjectifyService; import com.myweb.common.exception.DatabaseException; import com.myweb.model.User; public abstract class AbstractGenericDaoImpl implements GenericDao{ static { ObjectifyService.register(User.class); } @Override public &lt;T&gt; void create(T t) { ofy().save().entity(t).now(); } @Override public &lt;T&gt; String createWithKey(T t) { Key&lt;T&gt; key = ofy().save().entity(t).now(); return key.getString(); } @Override public &lt;T&gt; Long createWithID(T t) { Key&lt;T&gt; key = ofy().save().entity(t).now(); return key.getId(); } @Override public &lt;T&gt; void update(Class&lt;T&gt; clazz, Long id, T t) throws DatabaseException { if (id == null) { throw new DatabaseException("ID cannot be null"); } T tnew = ofy().load().type(clazz).id(id).get(); ofy().save().entity(tnew).now(); } @Override public &lt;T&gt; void update(Class&lt;T&gt; clazz, String key, T t) throws DatabaseException { if (key == null) { throw new DatabaseException("ID cannot be null"); } T tnew = ofy().load().type(clazz).id(key).get(); ofy().save().entity(tnew).now(); } @Override public &lt;T&gt; T getById(Class&lt;T&gt; clazz, Long id) throws DatabaseException { if (id == null) { throw new DatabaseException("ID cannot be null"); } return ofy().load().type(clazz).id(id).get(); } @Override public &lt;T&gt; T getByKey(Class&lt;T&gt; clazz, String key) throws DatabaseException { if (key == null) { throw new DatabaseException("ID cannot be null"); } return ofy().load().type(clazz).id(key).get(); } @Override public &lt;T&gt; List&lt;T&gt; list(Class&lt;T&gt; clazz) { List&lt;T&gt; list = ofy().load().type(clazz).list(); return list; } @Override public &lt;T&gt; void delete(Class&lt;T&gt; clazz, Long id) throws DatabaseException { if (id == null) { throw new DatabaseException("ID cannot be null"); } T t = ofy().load().type(clazz).id(id).get(); if(t != null){ ofy().delete().entity(t).now(); } } @Override public &lt;T&gt; void deleteByKey(Class&lt;T&gt; clazz, String key) throws DatabaseException { if (key == null) { throw new DatabaseException("ID cannot be null"); } T t = ofy().load().type(clazz).id(key).get(); if(t != null){ ofy().delete().entity(t).now(); } } } </code></pre> <p>Below is a method which uses filter query example in Objectify. </p> <pre><code>public User getUserByEmail(String email) { return ofy().load().type(User.class).filter("email", email).first().get(); } </code></pre> <p>Listing fields with Filter</p> <pre><code>public List&lt;User&gt; getUsers(String f1, String f2) { return ofy().load().type(User.class).filter("f1", f1).filter("f2", f2).list(); } </code></pre>
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    1. COThanks, this is helpful indeed! Just a question, Is it possible to load Entities filtering by other property than the key? I was doing ofy().load().type(StockTracking.class).filter("deviceId =", deviceId).filter("stockCode =", stockCode) but this returns a Query object and I have no idea on how to get the LoadResults to call run()
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    2. COYou can query on any number of filters. Add a **list()** at the end once you are done with filters.
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    3. CO@momo Please check my updated answer that will answer your question
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