io.springlets.web.mvc.util.concurrency

Class ConcurrencyTemplate<T>

java.lang.Object

io.springlets.web.mvc.util.concurrency.ConcurrencyTemplate<T>

Type Parameters:

T - Generic type that indicates the type of element that should be returned after #execute(ConcurrencyCallback) is called.

public class ConcurrencyTemplate<T>
extends Object

= ConcurrencyTemplate

Template class that simplifies programmatic concurrency demarcation and concurrency exception handling.

Author:

Juan Carlos García at http://www.disid.com[DISID Corporation S.L.]

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ConcurrencyTemplate.ConcurrencyTemplateException Custom exception to manage concurrency template errors

Constructor Summary

Constructors

Constructor and Description
ConcurrencyTemplate(ConcurrencyManager<T> manager) Default constructor that receives all the necessary parameters.

Method Summary

Modifier and Type	Method and Description
T	execute(T record, org.springframework.ui.Model model, ConcurrencyCallback<T> action) Executes the provided action.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConcurrencyTemplate

public ConcurrencyTemplate(ConcurrencyManager<T> manager)

Default constructor that receives all the necessary parameters.

Parameters:

manager - The element that will manage the concurrency behavior if some concurrency exception appears.

Method Detail

execute

public T execute(T record,
                 org.springframework.ui.Model model,
                 ConcurrencyCallback<T> action)

Executes the provided action. If something goes wrong and a ConcurrencyException appears during the process, it delegates in the provided ConcurrencyManager to manage the concurrency behaviour.

Parameters:

action - The action that should be executed and that could produce a Concurrency Exception.

Returns:

An object with the same type as the specified in the ConcurrencyTemplate constructor

Throws:

ConcurrencyTemplate.ConcurrencyTemplateException - if some exception different of ObjectOptimisticLockingFailureException is throwed during concurrency management.