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copied!<p>You can use <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/reflect/Field.html#getType%28%29" rel="nofollow">getType</a> method to determine the type of fields and then use only required fields. For this particualr scenario you can check if the filed if type <code>Date</code> or <code>String</code>. </p> <hr> <p><strong>EDIT :</strong> </p> <p><strong>Using annotation + Reflection</strong> </p> <p><strong>Step 1:</strong> Define your custom annotation. Here <code>DesiredField</code> is our custom annotation </p> <pre><code>@Target(value = ElementType.FIELD) @Retention(value = RetentionPolicy.RUNTIME) public @interface DesiredField { } </code></pre> <p><strong>Step 2:</strong> Annotate appropriate fields with <code>DesiredField</code>, you should annotate <code>dateOfBirth</code> and <code>aadhaarNumber</code> like </p> <pre><code>public class Person extends BaseModel { @DesiredField private Date dateOfBirth; @DesiredField private String aadhaarNumber; private Set<EducationQualification> educationQualifications; // Rest of the fields and methods } </code></pre> <p><strong>Step 3:</strong> Use reflection to find annotated fields </p> <pre><code> Person person = new Person(); Field[] fields = person.getClass().getFields(); for(Field field : fields){ DesiredField annotation = field.getAnnotation(DesiredField.class); if( annotation != null ){ // This is desired field now do what you want } } </code></pre> <p>This might help : <a href="http://www.vogella.com/articles/JavaAnnotations/article.html" rel="nofollow">http://www.vogella.com/articles/JavaAnnotations/article.html</a></p>

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