26、企业级 Java 事务管理详解

企业级 Java 事务管理详解

1. 银行 EJB 与资金交换

在资金交换场景中，我们有相关的接口和方法来保障操作的安全进行。以下是银行 EJB 相关的接口定义：

IllegalArgumentException;
/**
 * Obtains the current balance from the account with the specified ID
 * @param accountId
 * @return
 * @throws IllegalArgumentException If the account ID is not valid
 */
BigDecimal getBalance(long accountId) throws IllegalArgumentException;
/**
 * Transfers the specified amount from one account to another
 * @param accountIdFrom The ID of the account from which we'll withdraw
 * @param accountIdTo The ID of the account to which we'll deposit
 * @param amount The amount to be transferred
 * @throws IllegalArgumentException If the amount is not specified, the amount
is
 *   less than 0, or either account ID is inv