在CMDB中有2個核心概念：

實體
關(guān)系

為了靈活管理多個實體浑塞，對實體引入了實體組的概念。

-- 建立 頂點 Group
CREATE CLASS Group EXTENDS V;
-- 建立 頂點 Enity
CREATE CLASS Enity EXTENDS V;
--- 建立 邊 Relation
CREATE CLASS Relation EXTENDS E;

-- 建立名為“運維資產(chǎn)”的實體組
CREATE VERTEX Group SET name="運維資產(chǎn)";
-- 建立名為“物理機”的實體
CREATE VERTEX Enity SET name="物理機";
-- 建立名為“機架”的實體
CREATE VERTEX Enity SET name="機架";


-- 建立關(guān)系 Contain
CREATE CLASS Contain EXTENDS Relation;
-- 建立關(guān)系 Lay
CREATE CLASS Lay EXTENDS Relation;
-- 建立關(guān)系 RelayOn
CREATE CLASS RelayOn EXTENDS Relation;




-- # contain, lay 直接基于Relation政己，看起來行不通酌壕。

-- CREATE EDGE Relation SET name="屬于";

-- CREATE EDGE Relation SET name="放置在";


CREATE EDGE Contain FROM (select from Group where name='運維資產(chǎn)' ) TO ( select from Enity where name='物理機' );

CREATE EDGE Contain FROM (select from Group where name='運維資產(chǎn)' ) TO ( select from Enity where name='機架' );




CREATE EDGE Lay FROM (select from Enity where name='物理機' ) TO ( select from Enity where name='機架' );

-- A實體 和 A實體 無法建立關(guān)系。
CREATE EDGE RelayOn FROM (select from Enity where name='物理機' ) TO ( select from Enity where name='物理機' );

-- 實體A 和 實體B 之間可以有多種關(guān)系匹颤；
CREATE EDGE RelayOn FROM (select from Enity where name='物理機' ) TO ( select from Enity where name='機架' );

image.png

-- 可以建立兩個 名為“物理機”的實體A，然后就可以建立關(guān)系
CREATE VERTEX Enity SET name="物理機";

CREATE EDGE RelayOn FROM (select from Enity where name='物理機' ) TO ( select from Enity where name='物理機' );

image.png

擴展閱讀：

==== 抽象


CREATE CLASS Group EXTENDS V;


CREATE CLASS Enity EXTENDS V;


CREATE CLASS Relation EXTENDS E;


CREATE CLASS Rack EXTENDS Enity;

CREATE CLASS PhysicalMachine EXTENDS Enity;



CREATE CLASS Contain EXTENDS Relation;

CREATE CLASS Lay EXTENDS Relation;






CREATE EDGE Lover FROM (select from Preson where name='小朱') TO (select from Preson where name='小劉');



----
-- CREATE CLASS Relay EXTENDS E;
-- CREATE CLASS Contain EXTENDS E;


CREATE VERTEX Group SET name="運維資產(chǎn)";

CREATE VERTEX Enity SET name="物理機";

CREATE VERTEX Enity SET name="機架";

CREATE VERTEX Relation SET name="屬于";

CREATE VERTEX Relation SET name="放置在";