restSQLJava持久层框架

restSQL 是一个超轻量级的数据访问层，专为 HTTP 客户端提供，同时也是一个持久层框架，可嵌入任何 Java 应用。

restSQL 是：

• an SQL generator with Java and HTTP APIs
• uses a simple RESTful HTTP API with XML or JSON serialization
• presents flat or hierarchical views of relational database tables
• organizes access through query-able and updatable database views called SQL Resources
• offers declarative and plugin mechanisms for implementing domain constraints and business logic
• a JEE web application or a Java library
• platform, JEE container and database agnostic

restSQL 不是：

• an HTTP to JDBC/ODBC bridge that tunnels SQL over HTTP
• an Object-Relational Mapping tool (ORM) that maps tables to objects
• a database or a data storage engine
• a sophisticated query or report generator
• an OLAP-style cube or data warehousing engine

用途：

• basic CRUD (Create-Read-Update-Delete) access to relational databases
• a database abstraction layer
• a lighter-weight alternative to ORM (e.g. ADO or EJB)
• a lighter-weight alternative to WSDL/SOAP