isis中如何配置不同区域的level
时间: 2024-10-06 12:01:26 浏览: 12
In the Isis framework (a lightweight Java Persistence Framework), configuring different levels for entities in different regions typically involves setting up entity managers and specifying persistence unit settings that are specific to each region or context.
To configure level-based access in Isis, follow these steps:
1. **Persistence Units**:
- Create separate persistence units for each region in your `persistence.xml` file. Each persistence unit should define a unique name.
- For example:
```xml
<persistence-unit name="region1PU">
<property name="javax.persistence.jdbc.url" value="..." />
<!-- other JPA properties -->
</persistence-unit>
<persistence-unit name="region2PU">
<property name="javax.persistence.jdbc.url" value="..." />
<!-- different JDBC URL for region2 -->
</persistence-unit>
```
2. **Context Mappings**:
- In your application configuration, map each persistence unit to a specific Isis context or domain service.
- You can do this using `@ContextualJpaUnit` annotations on classes or methods, like so:
```java
@ContextualJpaUnit(pu = "region1PU")
public class Region1Service {}
@ContextualJpaUnit(pu = "region2PU")
public class Region2Service {}
```
3. **Entity Level Mapping**:
- If you need to apply different level configurations per entity, use the `@Level` annotation at the entity class level. Specify the level as `ANONYMOUS`, `AUTHENTICATED`, `PRINCIPAL`, or `ADMIN`.
- Example:
```java
@Level(AUTHENTICATED)
public class EntityForRegion1 {}
@Level(ADMIN)
public class EntityForRegion2 {}
```
4. **Accessing Entities**:
- Clients will automatically work with the appropriate level based on their current security context when accessing entities through services.
Remember, this assumes you have a basic understanding of Isis's security model and how it relates to different contexts.