Discuss / Java / 廖大佬,OrderEntity 中,id、userId用包装类型Long,sequenceId用简单类型long,这有什么设计么?

廖大佬,OrderEntity 中,id、userId用包装类型Long,sequenceId用简单类型long,这有什么设计么?

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何霖

#1 Created at ... [Delete] [Delete and Lock User]
/** * primary key: assigned */@Id@Column(nullable = false, updatable = false)public Long id;/** * event id that create this order. ASC only */@Column(nullable = false, updatable = false)public long sequenceId;

何霖

#2 Created at ... [Delete] [Delete and Lock User]

这提交的format code回变成一个string

廖雪峰

#3 Created at ... [Delete] [Delete and Lock User]

缓存的时候OrderEntity.id作为key省了一次auto boxing


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