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<H1><A name="ConnectionsupportforJ2SEenvironment-ConnectionsupportforJ2SEenvironment"></A>Connection support for J2SE environment</H1>
<P>So far DAS utilized JDBC Connection - either explicitly supplied by DAS invoker or available in the runtime context pre-configured using JNDI. </P>
<P>DAS config needs to have provision to support JDBC Connection for J2SE environment, when JNDI is not configured and connection is not explicitly supplied by the DAS invoker.</P>
<P>Below are the changes in DAS Config xsd. The attribute dataSource and element ConnectionProperties<BR>
are mutually exclusive. User needs to specify ONLY one of these. When ConnectionProperties is specified, DriverManager for appropriate database vendor is used to instantiate the JDBC Connection.<BR>
This way the J2SE applications can use DAS.</P>
<P>When dataSource is specified, the JNDI context is searched for pre-configured dataSource. This mode is useful, when Web Containers like Tomcat have the resource pre-defined for the dataSource.</P>
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<PRE> <xsd:complexType name="ConnectionProperties">
<xsd:attribute name="driverClass" type="xsd:string"/>
<xsd:attribute name="databaseURL" type="xsd:string"/>
<xsd:attribute name="userName" type="xsd:string" default=""/>
<xsd:attribute name="password" type="xsd:string" default=""/>
<xsd:attribute name="loginTimeout" type="xsd:int" default="0"/>
</xsd:complexType>
<xsd:complexType name="ConnectionInfo">
<xsd:sequence>
<xsd:element maxOccurs="1" minOccurs="0" name="ConnectionProperties" type="config:ConnectionProperties"/>
</xsd:sequence>
<xsd:attribute name="dataSource" type="xsd:string"/>
<xsd:attribute name="managedtx" type="xsd:boolean" default="true"/>
</xsd:complexType>
</PRE>
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<P>Below is one example DAS config, using Derby database.</P>
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<PRE> <Config xmlns="http:///org.apache.tuscany.das.rdb/config.xsd">
<!--Uncomment below for derby test-->
<ConnectionInfo>
<ConnectionProperties
driverClass="org.apache.derby.jdbc.EmbeddedDriver"
databaseURL="jdbc:derby:target/dastest; create = true"
loginTimeout="600000"/>
</ConnectionInfo>
....
</Config>
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