database.xsd

一个java方面的消息订阅发送的源码

<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            targetNamespace="http://www.openjms.org/database/schema">

<!-- ====================================================================== -->
<!-- This schema defines a simple RDBMS schema for constructing database    -->
<!-- tables and indexes                                                     -->
<!-- Author: Tim Anderson ([e-mail])                                -->
<!-- ====================================================================== -->

  <xsd:element name="database">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element defines a database. It is the root element of all database
        schema documents.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element ref="table" minOccurs="0" maxOccurs="unbounded" />
        <xsd:element ref="deprecated" minOccurs="0" maxOccurs="unbounded" />
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>


  <xsd:element name="table">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element defines a table
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element ref="attribute" minOccurs="0" maxOccurs="unbounded" />
        <xsd:element ref="index" minOccurs="0" maxOccurs="unbounded" />
      </xsd:sequence>
      <xsd:attribute name="name" type="xsd:string" use="required" />
    </xsd:complexType>
  </xsd:element>


  <xsd:element name="attribute">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element defines a table attribute.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:attribute name="name" type="xsd:string" use="required" />
      <xsd:attribute name="type" type="xsd:string" use="required" />
      <xsd:attribute name="not_null" type="xsd:boolean" use="optional" 
                     value="false" />
    </xsd:complexType>
  </xsd:element>


  <xsd:element name="index">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element specifies an index on a table
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element ref="column" minOccurs="1" maxOccurs="unbounded" />
      </xsd:sequence>
      <xsd:attribute name="name" type="xsd:string" use="required" />
      <xsd:attribute name="unique" type="xsd:boolean" use="optional" 
                     value="false" />
    </xsd:complexType>
  </xsd:element>

  
  <xsd:element name="column">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element defines a column in an index
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:attribute name="name" type="xsd:string" />
    </xsd:complexType>
  </xsd:element>


  <xsd:element name="deprecated">
    <xsd:annotation>
      <xsd:documentation xml:lang="en">
        This element specifies a table that is no longer required.
        This is a temporary workaround until a schema migration tool is 
        developed
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:attribute name="name" type="xsd:string" use="required" />
    </xsd:complexType>
  </xsd:element> 

</xsd:schema>