组合主键——实体类——Oracle数据库

最新推荐文章于 2024-09-21 15:42:51 发布

kevin_loving

最新推荐文章于 2024-09-21 15:42:51 发布

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本文详细介绍了如何通过实体类RolePrivilegeMap和RolePrivilegeMapId实现角色与权限的映射，包括序列化ID的设置，角色ID及权限信息ID的获取与设置，以及hashCode和equals方法的重写。

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@Entity
@Table(name = "XXXX")
public class RolePrivilegeMap implements CmsMainBo {

    private RolePrivilegeMapId id;

    @EmbeddedId
    public RolePrivilegeMapId getId() {
        return id;
    }

    public void setId(RolePrivilegeMapId id) {
        this.id = id;
    }
    public RolePrivilegeMap() {
    }
}

@Entity
@Embeddable
public class RolePrivilegeMapId implements XXXXBo {

    private static final long serialVersionUID = 2L;// 序列化ID

    private Integer roleId;

    private Integer privilegeInfoId;

    public RolePrivilegeMapId(Integer roleId, Integer privilegeInfoId) {
        super();
        this.roleId = roleId;
        this.privilegeInfoId = privilegeInfoId;
    }

    @Column(name = "role_id", unique = false, nullable = false)
    public Integer getRoleId() {
        return roleId;
    }

    public void setRoleId(Integer roleId) {
        this.roleId = roleId;
    }

    @Column(name = "privilege_info_id", unique = false, nullable = false)
    public Integer getPrivilegeInfoId() {
        return privilegeInfoId;
    }

    public void setPrivilegeInfoId(Integer privilegeInfoId) {
        this.privilegeInfoId = privilegeInfoId;
    }

    @Override
    public int hashCode() {
        final int prime = 32;
        int result = 1;
        result = prime * result + ((roleId == null) ? 0 : roleId.hashCode());
        result = prime * result + ((privilegeInfoId == null) ? 0 : privilegeInfoId.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return false;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        RolePrivilegeMapId other = (RolePrivilegeMapId)obj;
        if (roleId == null) {
            if (other.roleId != null)
                return false;
        } else if (!roleId.equals(other.roleId))
            return false;
        if (privilegeInfoId == null) {
            if (other.privilegeInfoId != null)
                return false;
        } else if (!privilegeInfoId.equals(other.privilegeInfoId))
            return false;
        return true;
    }
}

if (privilegeInfos != null && rolePrivilegeMaps != null) {
	privilegeInfoImpl.saveAll(privilegeInfos);
	privilegeInfoImpl.flush();
	for (PrivilegeInfo info: privilegeInfos){
		RolePrivilegeMap rolePrivilegeMap = new RolePrivilegeMap();
		rolePrivilegeMap.setId(new RolePrivilegeMapId(roleId,info.getPrivilegeInfoId()));
		rolePrivilegeMaps.add(rolePrivilegeMap);
	}
	privilegeInfoImpl.saveAll(rolePrivilegeMaps);
	privilegeInfoImpl.flush();
}