带参数的Spring编程事务

对于这样的事情,我使用以下方法 ObjectHolder :

public class ObjectHolder<T> {
    private T m_object;

    public ObjectHolder( T object ) {
        m_object = object;
    }

    public T getValue() {
        return m_object;
    }

    public void setValue( T object ) {
        m_object = object;
    }
}

然后你可以用

final ObjectHolder<Product> productHolder = 
    new ObjectHolder<Product>( new Product() );

…在匿名类中,您可以访问 Product 具有

productHolder.getValue();

…或使用

productHolder.setValue( new Product() );

申报 final . 匿名内部类可以访问 局部变量:

public void someMethod() {
    ...
    final Product product = new Product();
    ...
    transactionTemplate.execute( 
        new TransactionCallbackWithoutResult()  
        { 
            protected void doInTransactionWithoutResult (TransactionStatus status) 
            { 
                doSomething(product);
                return; 
            }}); 
    ...
}