PostGIS和JPA 2.0 [英] PostGIS and JPA 2.0

问题描述

我想用PostA和JPA 2.0映射数据类型。我搜索了解决方案或示例，但我能找到的是JPA不支持自定义数据类型的映射。在JPA 2.0中它仍然是这样吗？有没有人给一个例子提示？

I'd like to map datatypes from PostGIS with JPA 2.0. I googled for solutions or examples, but all I can find is that JPA does not support mapping of custom data types. Is it still like this in JPA 2.0? Has anybody a hint for an example?

推荐答案

我搜索了解决方案或示例，但所有我可以找到的是，JPA不支持自定义数据类型的映射。它仍然在JPA 2.0中吗？

I googled for solutions or examples, but all I can find is, that JPA does not support mapping of custom data types. Is it still in JPA 2.0?

是的。所以你必须依赖特定的扩展。对于Hibernate， Hibernate Spatial 项目提供了随时可用的空间方言和自定义类型：

Yes. So you'll have to rely on specific extensions. For Hibernate, the Hibernate Spatial project provides ready to use spatial dialects and custom types:

Hibernate Spatial是Hibernate用于处理
地理数据的通用
扩展。 Hibernate Spatial是
开源和许可，如
Hibernate，在LGPL许可下。

Hibernate Spatial is a generic extension to Hibernate for handling geographic data. Hibernate Spatial is open source and licensed, like Hibernate, under the LGPL license.

Hibernate Spatial允许你交易
标准化
方式的地理数据。它抽象了数据库支持
地理数据的
特定方式，并为地理数据存储和查询
函数提供
标准化，跨数据库接口
。

Hibernate Spatial allows you to deal with geographic data in a standardized way. It abstracts away from the specific way your database supports geographic data, and provides a standardized, cross-database interface to geographic data storage and query functions.

Hibernate Spatial支持OGC Simple Feature
规范的大部分
函数。支持的数据库
是：Oracle 10g / 11g，
Postgresql / Postgis，Microsoft SQL
服务器和MySQL。

Hibernate Spatial supports most of the functions of the OGC Simple Feature Specification. Supported databases are: Oracle 10g/11g, Postgresql/Postgis, Microsoft SQL Server and MySQL.

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