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POdesign pattern to validate the requests?
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copied!<p>I have below the interface. I am using Java 7 and Spring 3.0</p> <pre><code>public interface Maintain{ void save(Request request); Request getRequest(String id); void delete(Request request); void update(Request request); } public class MaintainImpl implements Maintain{ public void save(Request request){ //Need to validate the request before saving. //Need to throw run time exception if validation fails } public void getRequest(String id){ //Need to validate the id before getting the results. //Need to throw run time exception if validation fails } //Similarly i need to implement other 2 methods } </code></pre> <p>To validate the requests: I am planning to write one Interface and 4 impl classes which will have validation logic.</p> <pre><code>public interface validate{ boolan validate(); } public class SaveRequestValidator implements validate{ public boolean validate(){ //validation logic } } public class GetRequestValidator implements validate{ public boolean validate(){ //validation logic } } public class DeleteRequestValidator implements validate{ public boolean validate(){ //validation logic } } public class UpdateRequestValidator implements validate{ public boolean validate(){ //validation logic } } </code></pre> <p>Now can i perform validations by injecting all these four validators into <strong>MaintainImpl.java</strong> ?</p> <p>Is it good practice? Is there any better design? OR can i keep all validations in one class and provide static methods?</p> <p>Thanks!</p>

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