entityinfo.java

来自「anewssystem新闻发布系统集成使用了spring hibernate f」· Java 代码 · 共 46 行

package anni.core.dao.undelete;


/**
 * 装载Entity信息的内部类.
 *
 * @author calvin
 */
public class EntityInfo {
    private boolean isUndeletable = false; // entity是否undeleteable的标志
    private String statusProperty; // 标识状态的属性名

    public EntityInfo(Class entityClass) {
        init(entityClass);
    }

    public boolean isUndeletable() {
        return isUndeletable;
    }

    public String getStatusProperty() {
        return statusProperty;
    }

    /**
     * 初始函数,判断EntityClass是否UndeletableEntity.
     */
    @SuppressWarnings("unchecked")
    private void init(Class entityClass) {
        // 通过EntityClass的interface判断entity是否undeletable
        if (UndeletableEntity.class.isAssignableFrom(entityClass)) {
            isUndeletable = true;
            statusProperty = UndeleteableEntityOperation.STATUS;
        }

        // 通过EntityClass的annotation判断entity是否undeletable
        if (entityClass.isAnnotationPresent(Undeletable.class)) {
            isUndeletable = true;

            Undeletable anno = (Undeletable) entityClass
                .getAnnotation(Undeletable.class);
            statusProperty = anno.status();
        }
    }
}